Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
1 of 24
512Mb G-die DDR SDRAM Specification
66 TSOP-II
(RoHS compliant)
with Lead-Free and Halogen-Free
* Samsung Electronics reserves the right to change products or specification without notice.
INFORMATION IN THIS DOCUMENT IS PROVIDED IN RELATION TO SAMSUNG PRODUCTS,
AND IS SUBJECT TO CHANGE WITHOUT NOTICE. NOTHING IN THIS DOCUMENT SHALL BE
CONSTRUED AS GRANTING ANY LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHER-
WISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IN SAMSUNG PRODUCTS OR TECHNOL-
OGY. ALL INFORMATION IN THIS DOCUMENT IS PROVIDED ON AS "AS IS" BASIS WITHOUT
GUARANTEE OR WARRANTY OF ANY KIND.
1. For updates or additional information about Samsung products, contact your nearest Samsung office.
2. Samsung products are not intended for use in life support, critical care, medical, safety equipment, or similar
applications where Product failure could result in loss of life or personal or physical harm, or any military or
defense application, or any governmental procurement to which special terms or provisions may apply.
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
2 of 24
1.0 Key Features ...............................................................................................................................4
2.0 Ordering Information...................................................................................................................4
3.0 Operating Frequencies................................................................................................................4
4.0 Pin Description ............................................................................................................................5
5.0 Package Physical Dimension .....................................................................................................6
6.0 Block Diagram (32Mbit x 4 / 16Mbit x8 / 8Mbit x16 I/O x4 Banks)............................................7
7.0 Input/Output Function Description ............................................................................................8
8.0 Command Truth Table.................................................................................................................9
9.0 General Description...................................................................................................................10
10.0 Absolute Maximum Rating .....................................................................................................10
11.0 DC Operating Conditions........................................................................................................10
12.0 DDR SDRAM IDD Spec Items & Test Conditions..................................................................11
13.0 Input/Output Capacitance ......................................................................................................11
14.0 Detailed test condition for DDR SDRAM IDD1 & IDD7A ......................................................12
15.0 DDR SDRAM IDD spec table ..................................................................................................13
16.0 AC Operating Conditions .......................................................................................................14
17.0 AC Overshoot/Undershoot specification for Address and Control Pins............................14
18.0 Overshoot/Undershoot specification for Data, Strobe and Mask Pins...............................15
19.0 AC Timming Parameters & Specifications ...........................................................................16
20.0 System Characteristics for DDR SDRAM ..............................................................................17
21.0 Component Notes....................................................................................................................18
22.0 System Notes ...........................................................................................................................20
23.0 IBIS : I/V Characteristics for Input and Output Buffers........................................................21
Table of Contents
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
3 of 24
Revision History
Revision Month Year History
1.0 September 2009 - Initial Release
1.1 November 2009 - Changed tRAS max data of -BO(266Mbps) on page 16
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
4 of 24
• VDD : 2.5V ± 0.2V, VDDQ : 2.5V ± 0.2V for DDR266, 333
• VDD : 2.6V ± 0.1V, VDDQ : 2.6V ± 0.1V for DDR400
• Double-data-rate architecture; two data transfers per clock cycle
• Bidirectional data strobe [DQS] (x4,x8) & [L(U)DQS] (x16)
• Four banks operation
• Differential clock inputs(CK and CK)
• DLL aligns DQ and DQS transition with CK transition
• MRS cycle with address key programs
-. Read latency : DDR266(2.5 Clock), DDR333(2.5 Clock), DDR400(3 Clock)
-. Burst length (2, 4, 8)
-. Burst type (sequential & interleave)
• All inputs except data & DM are sampled at the positive going edge of the system clock(CK)
• Data I/O transactions on both edges of data strobe
• Edge aligned data output, center aligned data input
• LDM,UDM for write masking only (x16)
• DM for write masking only (x4, x8)
• Auto & Self refresh
• 7.8us refresh interval(8K/64ms refresh)
• Maximum burst refresh cycle : 8
• 66pin TSOP II Lead-Free & Halogen-Free package
• RoHS compliant
CC(DDR400@CL=3) B3(DDR333@CL=2.5) B0(DDR266@CL=2.5)
Speed @CL2 133MHz 100MHz
Speed @CL2.5 166MHz 166MHz 133MHz
Speed @CL3 200MHz - -
CL-tRCD-tRP 3-3-3 2.5-3-3 2.5-3-3
Note :
1. "L" of part number(12th digit) stands for RoHS compliant and Halogen-Free product.
2. "-B3"(DDR333, CL=2.5) can support "-B0"(DDR266, CL=2.5)
Part No. Org. Max Freq. Interface Package Note
K4H510438G-LC/LB0
128M x 4 B0(DDR266@CL=2.5) SSTL_2 66pin TSOP II
Lead-Free & Halogen-Free
1
K4H510438G-LC/LB3 B3(DDR333@CL=2.5) 1, 2
K4H510838G-LC/LCC
64M x 8 CC(DDR400@CL=3) SSTL_2 66pin TSOP II
Lead-Free & Halogen-Free
1
K4H510838G-LC/LB3 B3(DDR333@CL=2.5) 1, 2
K4H511638G-LC/LCC
32M x 16 CC(DDR400@CL=3) SSTL_2 66pin TSOP II
Lead-Free & Halogen-Free
1
K4H511638G-LC/LB3 B3(DDR333@CL=2.5) 1, 2
1.0 Key Features
2.0 Ordering Information
3.0 Operating Frequencies
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
5 of 24
DM is internally loaded to match DQ and DQS identically.
Row & Column address configuration
Organization Row Address Column Address
128Mx4 A0~A12 A0~A9, A11, A12
64Mx8 A0~A12 A0-A9, A11
32Mx16 A0~A12 A0-A9
4.0 Pin Description
512Mb TSOP-II Package Pinout
V
DD
1
66Pin TSOP
II
(400mil x 875mil)
DQ
0
2
V
DDQ
3
NC
4
DQ
1
5
V
SSQ
6
NC
7
DQ
2
8
V
DDQ
9
NC
10
DQ
3
11
V
SSQ
12
BA
0
20
CS
19
RAS
18
CAS
17
WE
16
NC
15
V
DDQ
14
NC
13
V
DD
27
A
3
26
A
2
25
A
1
24
A
0
23
AP/A
10
22
BA
1
21
V
SS
54
DQ
7
53
V
SSQ
52
NC
51
DQ
6
50
V
DDQ
49
NC
48
DQ
5
47
V
SSQ
46
NC
45
DQ
4
44
V
DDQ
43
A
11
35
36
CKE
37
CK
38
DM
39
V
REF
40
V
SSQ
41
NC
42
V
SS
55
A
4
56
A
5
57
A
6
58
A
7
59
A
8
60
A
9
34
(0.65mm Pin Pitch)
33
32
31
30
29
28
61
62
63
64
65
66
NC
NC
NC
NC
NC
V
DD
NC
DQS
NC
V
SS
CK
NC
A
12
V
SS
NC
V
SSQ
NC
DQ
3
V
DDQ
NC
NC
V
SSQ
NC
DQ
2
V
DDQ
A
11
CKE
CK
DM
V
REF
V
SSQ
NC
V
SS
A
4
A
5
A
6
A
7
A
8
A
9
NC
DQS
NC
V
SS
CK
NC
A
12
V
DD
NC
V
DDQ
NC
DQ
0
V
SSQ
NC
NC
V
DDQ
NC
DQ
1
V
SSQ
BA
0
CS
RAS
CAS
WE
NC
V
DDQ
NC
V
DD
A
3
A
2
A
1
A
0
AP/A
10
BA
1
NC
NC
NC
NC
NC
V
DD
Bank Address
BA0~BA1
Auto Precharge
A10
128Mb x 4
64Mb x 8
V
DD
DQ
0
V
DDQ
DQ
1
DQ
2
V
SSQ
DQ
3
DQ
4
V
DDQ
DQ
5
DQ
6
V
SSQ
BA
0
CS
RAS
CAS
WE
LDM
V
DDQ
DQ
7
V
DD
A
3
A
2
A
1
A
0
AP/A
10
BA
1
NC
LDQS
NC
NC
NC
V
DD
V
SS
DQ
15
V
SSQ
DQ
14
DQ
13
V
DDQ
DQ
12
DQ
11
V
SSQ
DQ
10
DQ
9
V
DDQ
A
11
CKE
CK
UDM
V
REF
V
SSQ
DQ
8
V
SS
A
4
A
5
A
6
A
7
A
8
A
9
NC
UDQS
NC
V
SS
CK
NC
A
12
32Mb x 16
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
6 of 24
5.0 Package Physical Dimension
66Pin TSOP(II) Package Dimension
#1
(1.50)
(1.50)
#66 #34
#33
10.16 ± 0.10
(R 0.15)
22.22 ± 0.10
0.210 ± 0.05
0.665 ± 0.05
(R 0.15)
(0.71) [0.65 ± 0.08]
0.65TYP
0.30
(10°)
(10°)
(10.76)
0.125 +0.075
- 0.035
(10°)
(10°)
11.76 ± 0.20
(0.80)
(0.80)
(0.50)
(0.50)
(4°)
0.45 ~ 0.75
(0° ∼ 8°)
0.25TYP
(R 0.25)
(R 0.25)
± 0.08
1.00 ± 0.10
0.05 MIN
1.20 MAX
0.10 MAX
0.075 MAX
[
[
NOTE
1. ( ) IS REFERENCE
2. [ ] IS ASS’Y OUT QUALITY
Detail A Detail B
Detail BDetail A
0.25 ± 0.08
Unit : mm
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
7 of 24
6.0 Block Diagram (32M x 4 / 16Mb x 8 / 8Mb x 16 I/O x4 Banks)
Bank Select
Timing Register
Address Register
Refresh Counter
Row Buffer
Row Decoder Col. Buffer
Data Input Register
Serial to parallel
16Mx8/ 8Mx16/ 4Mx32
16Mx8/ 8Mx16/ 4Mx32
16Mx8/ 8Mx16/ 4Mx32
Sense AMP
2-bit prefetch
Output BufferI/O Control
Column Decoder
Latency & Burst Length
Programming Register
DLL
Strobe
Gen.
CK, CK
ADD
LCKE
CK, CK CKE CS RAS CAS WE
CK, CK
LCAS
LRAS LCBR LWE
LWCBR
LRAS
LCBR
CK, CK
x8/x16/32
x8/x16/32 x4/x8/16
x4/x8/16 LWE
LDM (x4/x8)
x4/x8/16
DQi
Data Strobe
LUDM (x16)
LDM (x4/x8)
LUDM (x16)
DM Input Register
LDM (x4/x8)
LUDM (x16)
16Mx8/ 8Mx16/ 4Mx32
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
8 of 24
SYMBOL TYPE DESCRIPTION
CK, CK Input
Clock : CK and CK are differential clock inputs. All address and control input signals are sam-
pled on the positive edge of CK and negative edge of CK. Output (read) data is referenced to
both edges of CK. Internal clock signals are derived from CK/CK.
CKE Input
Clock Enable : CKE HIGH activates, and CKE LOW deactivates internal clock signals, and
device input buffers and output drivers. Taking CKE Low provides PRECHARGE POWER-
DOWN and SELF REFRESH operation (all banks idle), or ACTIVE POWER-DOWN (row
ACTIVE in any bank). CKE is synchronous for POWER-DOWN entry and exit, and for SELF
REFRESH entry. CKE is asynchronous for SELF REFRESH exit, and for output disable. CKE
must be maintained high throughput READ and WRITE accesses. Input buffers, excluding CK,
CK and CKE are disabled during POWER-DOWN. Input buffers, excluding CKE are disabled
during SELF REFRESH. CKE is an SSTL_2 input, but will detect an LVCMOS Low level after
Vdd is applied upon 1st power up, After VREF has become stable during the power on and ini-
tialization sequence, it must be maintained for proper operation of the CKE receiver. For
proper SELF-REFRESH entry and exit, VREF must be maintained to this input.
CS Input
Chip Select : CS enables(registered LOW) and disables(registered HIGH) the command
decoder. All commands are masked when CS is registered HIGH. CS provides for external
bank selection on systems with multiple banks. CS is considered part of the command code.
RAS, CAS, WE Input Command Inputs : RAS, CAS and WE (along with CS) define the command being entered.
LDM,(UDM) Input
Input Data Mask : DM is an input mask signal for write data. Input data is masked when DM is
sampled HIGH along with that input data during a WRITE access. DM is sampled on both
edges of DQS. Although DM pins are input only, the DM loading matches the DQ and DQS
loading. For the x16, LDM corresponds to the data on DQ0~D7 ; UDM corresponds to the data
on DQ8~DQ15. DM may be driven high, low, or floating during READs.
BA0, BA1 Input Bank Addres Inputs : BA0 and BA1 define to which bank an ACTIVE, READ, WRITE or PRE-
CHARGE command is being applied.
A [0 : 12] Input
Address Inputs : Provide the row address for ACTIVE commands, and the column address and
AUTO PRECHARGE bit for READ/WRITE commands, to select one location out of the mem-
ory array in the respective bank. A10 is sampled during a PRECHARGE command to deter-
mine whether the PRECHARGE applies to one bank (A10 LOW) or all banks (A10 HIGH). If
only one bank is to be precharged, the bank is selected by BA0, BA1. The address inputs also
provide the op-code during a MODE REGISTER SET command. BA0 and BA1 define which
mode register is loaded during the MODE REGISTER SET command (MRS or EMRS).
DQ I/O Data Input/Output : Data bus
LDQS,(U)DQS I/O
Data Strobe : Output with read data, input with write data. Edge-aligned with read data, cen-
tered in write data. Used to capture write data. For the x16, LDQS corresponds to the data on
DQ0~D7 ; UDQS corresponds to the data on DQ8~DQ15.
LDQS is NC on x4 and x8.
NC - No Connect : No internal electrical connection is present.
VDDQ Supply DQ Power Supply : +2.5V ± 0.2V. (+2.6V ±0.1V for DDR400)
VSSQ Supply DQ Ground.
VDD Supply Power Supply : +2.5V ± 0.2V. (+2.6V ±0.1V for DDR400)
VSS Supply Ground.
VREF Input SSTL_2 reference voltage.
7.0 Input/Output Function Description
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
9 of 24
(V=Valid, X=Don′t Care, H=Logic High, L=Logic Low)
Note :
1. OP Code : Operand Code. A0 ~ A12& BA0 ~ BA1 : Program keys. (@EMRS/MRS)
2. EMRS/MRS can be issued only at all banks precharge state.
A new command can be issued 2 clock cycles after EMRS or MRS.
3. Auto refresh functions are same as the CBR refresh of DRAM.
The automatical precharge without row precharge command is meant by "Auto".
Auto/self refresh can be issued only at all banks precharge state.
4. BA0 ~ BA1 : Bank select addresses.
If both BA0 and BA1 are "Low" at read, write, row active and precharge, bank A is selected.
If BA0 is "High" and BA1 is "Low" at read, write, row active and precharge, bank B is selected.
If BA0 is "Low" and BA1 is "High" at read, write, row active and precharge, bank C is selected.
If both BA0 and BA1 are "High" at read, write, row active and precharge, bank D is selected.
5. If A10/AP is "High" at row precharge, BA0 and BA1 are ignored and all banks are selected.
6. During burst write with auto precharge, new read/write command can not be issued.
Another bank read/write command can be issued after the end of burst.
New row active of the associated bank can be issued at tRP after the end of burst.
7. Burst stop command is valid at every burst length.
8. DM(x4/8) sampled at the rising and falling edges of the DQS and Data-in are masked at the both edges (Write DM latency is 0).
UDM/LDM(x16 only) sampled at the rising and falling edges of the UDQS/LDQS and Data-in are masked at the both edges
(Write UDM/LDM latency is 0).
9. This combination is not defined for any function, which means "No Operation(NOP)" in DDR SDRAM.
COMMAND CKEn-1 CKEn CS RAS CAS WE BA0,1 A10/AP A0 ~ A9,
A11 ~ A12 Note
Register Extended MRS H X L L L L OP CODE 1, 2
Register Mode Register Set H X L L L L OP CODE 1, 2
Refresh
Auto Refresh HHLL L H X 3
Self
Refresh
Entry L 3
Exit L H LH H H X3
HX X X 3
Bank Active & Row Addr. H X L L H H V Row Address
Read &
Column Address
Auto Precharge Disable HXLHLHV LColumn
Address
4
Auto Precharge Enable H 4
Write &
Column Address
Auto Precharge Disable HXLHLLV LColumn
Address
4
Auto Precharge Enable H 4, 6
Burst Stop H X L H H L X 7
Precharge Bank Selection HXLLHL
VL X
All Banks X H 5
Active Power Down Entry H L HX X X
XLV V V
Exit L H X X X X
Precharge Power Down Mode
Entry H L HX X X
X
LH H H
Exit L H HX X X
LV V V
DM(UDM/LDM for x16 only) H X X 8
No operation (NOP) : Not defined H X HX X X X9
LH H H 9
8.0 Command Truth Table
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
10 of 24
32M x 4Bit x 4 Banks / 16M x 8Bit x 4 Banks / 8M x 16Bit x 4 Banks Double Data Rate SDRAM
The K4H510438G / K4H510838G / K4H511638G is 536,870,912 bits of double data rate synchronous DRAM organized as 4x
33,554,432 / 4x 16,777,216 / 4x 8,388,608 words by 4/8/16bits, fabricated with SAMSUNG′s high performance CMOS technology. Syn-
chronous features with Data Strobe allow extremely high performance up to 400Mb/s per pin. I/O transactions are possible on both
edges of DQS. Range of operating frequencies, programmable burst length and programmable latencies allow the device to be useful
for a variety of high performance memory system applications.
Note : Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded.
Functional operation should be restricted to recommend operation condition.
Exposure to higher than recommended voltage for extended periods of time could affect device reliability.
Parameter Symbol Value Unit
Voltage on any pin relative to VSS VIN, VOUT -0.5 ~ 3.6 V
Voltage on VDD & VDDQ supply relative to VSS VDD, VDDQ -1.0 ~ 3.6 V
Storage temperature TSTG -55 ~ +150 °C
Short circuit current IOS 50 mA
Recommended operating conditions(Voltage referenced to VSS=0V, TA=0 to 70°C)
Note :
1. VREF is expected to be equal to 0.5*VDDQ of the transmitting device, and to track variations in the dc level of same. Peak-to peak noise on VREF may not
exceed +/-2% of the dc value.
2. VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF
, and must track vari-
ations in the DC level of VREF
3. VID is the magnitude of the difference between the input level on CK and the input level on CK.
4. The ratio of the pullup current to the pulldown current is specified for the same temperature and voltage, over the entire temperature and voltage range,
for device drain to source voltages from 0.25V to 1.0V. For a given output, it represents the maximum difference between pullup and pulldown drivers
due to process variation. The full variation in the ratio of the maximum to minimum pullup and pulldown current will not exceed 1.7 for device drain to
source voltages from 0.1 to 1.0.
Parameter Symbol Min Max Unit Note
Supply voltage(for device with a nominal VDD of 2.5V for DDR266/333) VDD 2.3 2.7 V
Supply voltage(for device with a nominal VDD of 2.6V for DDR400) VDD 2.5 2.7 V
I/O Supply voltage(for device with a nominal VDD of 2.5V for DDR266/333) VDDQ 2.3 2.7 V
I/O Supply voltage(for device with a nominal VDD of 2.5V for DDR400) VDDQ 2.5 2.7 V
I/O Reference voltage VREF 0.49*VDDQ 0.51*VDDQ V1
I/O Termination voltage(system) VTT VREF-0.04 VREF+0.04 V2
Input logic high voltage VIH(DC) VREF+0.15 VDDQ+0.3 V
Input logic low voltage VIL(DC) -0.3 VREF-0.15 V
Input Voltage Level, CK and CK inputs VIN(DC) -0.3 VDDQ+0.3 V
Input Differential Voltage, CK and CK inputs VID(DC) 0.36 VDDQ+0.6 V3
V-I Matching: Pullup to Pulldown Current Ratio VI(Ratio) 0.71 1.4 -4
Input leakage current II-2 2 uA
Output leakage current IOZ -5 5uA
Output High Current(Normal strengh driver) ;VOUT = VTT + 0.84V IOH -16.8 mA
Output High Current(Normal strengh driver) ;VOUT = VTT - 0.84V IOL 16.8 mA
Output High Current(Half strengh driver) ;VOUT = VTT + 0.45V IOH -9 mA
Output High Current(Half strengh driver) ;VOUT = VTT - 0.45V IOL 9mA
9.0 General Description
10.0 Absolute Maximum Rating
11.0 DC Operating Conditions
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
11 of 24
Conditions Symbol
Operating current - One bank Active-Precharge;
tRC=tRCmin; tCK=7.5ns for DDR266, 6ns for DDR333, 5ns for DDR400;
DQ,DM and DQS inputs changing once per clock cycle;
address and control inputs changing once every two clock cycles.
IDD0
Operating current - One bank operation ; One bank open, BL=4, Reads
- Refer to the following page for detailed test condition IDD1
Precharge power-down standby current; All banks idle; power - down mode;
CKE = <VIL(max); tCK=7.5ns for DDR266, 6ns for DDR333, 5ns for DDR400;
Vin = Vref for DQ,DQS and DM.
IDD2P
Precharge Floating standby current; CS# > =VIH(min);All banks idle; CKE > = VIH(min), tCK=7.5ns for DDR266,
6ns for DDR333, 5ns for DDR400; Address and other control inputs changing once per clock cycle; Vin = Vref for
DQ,DQS and DM
IDD2F
Precharge Quiet standby current; CS# > = VIH(min); All banks idle;
CKE > = VIH(min); tCK=7.5ns for DDR266, 6ns for DDR333, 5ns for DDR400; Address and other control inputs sta-
ble at >= VIH(min) or =<VIL(max); VIN = VREF for DQ ,DQS and DM
IDD2Q
Active power - down standby current ; one bank active; power-down mode;
CKE=< VIL (max) ,tCK=7.5ns for DDR266, 6ns for DDR333, 5ns for DDR400;
Vin = Vref for DQ,DQS and DM
IDD3P
Active standby current; CS# >= VIH(min); CKE>=VIH(min);
one bank active; active - precharge; tRC=tRASmax; tCK=7.5ns for DDR266, 6ns for DDR333, 5ns for DDR400;
DQ, DQS and DM inputs changing twice per clock cycle; address and other control inputs changing once per clock
cycle
IDD3N
Operating current - burst read; Burst length = 2; reads; continuous burst; One bank active; address and control
inputs changing once per clock cycle; CL=2.5 at tCK=7.5ns for DDR266, tCK=6ns for DDR333, CL=3 at tCK=5ns
for DDR400; 50% of data changing on every transfer; lout = 0 m A
IDD4R
Operating current - burst write; Burst length = 2; writes; continuous burst;
One bank active address and control inputs changing once per clock cycle; CL=2.5 at tCK=7.5ns for DDR266, 6ns
for DDR333, 5ns for DDR400; DQ, DM and DQS inputs changing twice per clock cycle, 50% of input data changing
at every burst
IDD4W
Auto refresh current; tRC = tRFC(min) which is 10*tCK for DDR266 at tCK=7.5ns; 12*tCK for DDR333 at
tCK=6ns, 14*tCK for DDR400 at tCK=5ns; distributed refresh IDD5
Self refresh current; CKE =< 0.2V; External clock on; tCK=7.5ns for DDR266, 6ns for DDR333, 5ns for DDR400. IDD6
Operating current - Four bank operation ; Four bank interleaving with BL=4
-Refer to the following page for detailed test condition IDD7A
( TA= 25°C, f=100MHz)
Note :
1.These values are guaranteed by design and are tested on a sample basis only.
2. Although DM is an input -only pin, the input capacitance of this pin must model the input capacitance of the DQ and DQS pins.
This is required to match signal propagation times of DQ, DQS, and DM in the system.
3. Unused pins are tied to ground.
4. This parameteer is sampled. For DDR266 and DDR333 VDDQ = +2.5V +0.2V, VDD = +3.3V +0.3V or +0.25V+0.2V. For DDR400, VDDQ = +2.6V +0.1V,
VDD = +2.6V +0.1V. For all devices, f=100MHz, tA=25°C, Vout(dc) = VDDQ/2, Vout(peak to peak) = 0.2V. DM inputs are grouped with I/O pins -
reflecting the fact that they are matched in loading (to facilitate trace matching at the board level).
Parameter Symbol Min Max DeltaCap(max) Unit Note
Input capacitance
(A0 ~ A12, BA0 ~ BA1, CKE, CS, RAS,CAS, WE)CIN1 23 0.5pF4
Input capacitance( CK, CK ) CIN2 2 3 0.25 pF 4
Data & DQS input/output capacitance COUT 45
0.5
pF 1,2,3,4
Input capacitance(DM for x4/8, UDM/LDM for x16) CIN3 4 5 pF 1,2,3,4
12.0 DDR SDRAM IDD Spec Items & Test Conditions
13.0 Input/Output Capacitance
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
12 of 24
IDD7A : Operating current: Four bank operation
1. Typical Case: For DDR266,333: VDD = 2.5V, T=25°C; For DDR400: VDD=2.6V,T=25°C
Worst Case : VDD = 2.7V, T= 10°C
2. Four banks are being interleaved with tRC(min), Burst Mode, Address and Control inputs on NOP edge are not
changing. lout = 0mA
4. Timing patterns
- B0(133Mhz, CL=2.5) : tCK = 7.5ns, CL=2.5, BL=4, tRRD = 2*tCK, tRCD = 3*tCK, Read with autoprecharge
Read : A0 N A1 R0 A2 R1 A3 R2 N R3 N A0 N A1 R0 - repeat the same timing with random address changing
*50% of data changing at every burst
- B3(166Mhz,CL=2.5) : tCK=6ns, CL=2.5, BL=4, tRRD=2*tCK, tRCD=3*tCK, Read with autoprecharge
Read : A0 N A1 R0 A2 R1 A3 R2 N R3 N A0 N A1 R0 - repeat the same timing with random address changing
*50% of data changing at every burst
- CC(200Mhz,CL = 3) : tCK = 5ns, CL = 3, BL = 4, tRCD = 3*tCK , tRC = 11*tCK, tRAS = 8*tCK
Read : A0 N A1 R0 A2 R1 A3 R2 N R3 N A0 N A1 R0 - repeat the same timing with random address changing
*50% of data changing at every transfer
Legend : A=Activate, R=Read, W=Write, P=Precharge, N=DESELECT
IDD1 : Operating current: One bank operation
1. Typical Case: For DDR266,333: VDD = 2.5V, T=25°C; For DDR400: VDD=2.6V,T=25°C
Worst Case : VDD = 2.7V, T= 10°C
2. Only one bank is accessed with tRC(min), Burst Mode, Address and Control inputs on NOP edge are changing once
per clock cycle. lout = 0mA
3. Timing patterns
- B0(133Mhz, CL=2.5) : tCK = 7.5ns, CL=2.5, BL=4, tRCD = 3*tCK, tRC = 9*tCK, tRAS = 6*tCK
Read : A0 N N R0 N N P0 N N A0 N - repeat the same timing with random address changing
*50% of data changing at every burst
- B3(166Mhz, CL=2.5) : tCK=6ns, CL=2.5, BL=4, tRCD=3*tCK, tRC = 10*tCK, tRAS=7*tCK
Read : A0 N N R0 N N P0 N N A0 N - repeat the same timing with random address changing
*50% of data changing at every burst
- CC(200Mhz,CL = 3) : tCK = 5ns, CL = 3, BL = 4, tRCD = 3*tCK , tRC = 11*tCK, tRAS = 8*tCK
Read : A0 N N R0 N N N N P0 N N - repeat the same timing with random address changing
*50% of data changing at every transfer
Legend : A=Activate, R=Read, W=Write, P=Precharge, N=DESELECT
14.0 Detailed test condition for DDR SDRAM IDD1 & IDD7A
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
13 of 24
(VDD=2.7V, T = 10°C)
Symbol 128Mx4 (K4H510438G) Unit Notes
B3(DDR333@CL=2.5) B0(DDR266@CL=2.5)
IDD0 65 55 mA
IDD1 75 65 mA
IDD2P 5 5 mA
IDD2F 23 23 mA
IDD2Q 20 20 mA
IDD3P 15 15 mA
IDD3N 35 35 mA
IDD4R 80 75 mA
IDD4W 95 80 mA
IDD5 110 90 mA
IDD6 Normal 5 5 mA
Low power 3 3 mA
IDD7A 210 175 mA
Symbol 64Mx8 (K4H510838G) Unit Notes
CC(DDR400@CL=3) B3(DDR333@CL=2.5)
IDD0 75 65 mA
IDD1 90 80 mA
IDD2P 5 5 mA
IDD2F 23 23 mA
IDD2Q 20 20 mA
IDD3P 20 15 mA
IDD3N 40 40 mA
IDD4R 110 95 mA
IDD4W 110 100 mA
IDD5 130 110 mA
IDD6 Normal 5 5 mA
Low power 3 3 mA
IDD7A 240 220 mA
Symbol 32Mx16 (K4H511638G) Unit Notes
CC(DDR400@CL=3) B3(DDR333@CL=2.5)
IDD0 80 70 mA
IDD1 100 90 mA
IDD2P 5 5 mA
IDD2F 23 23 mA
IDD2Q 20 20 mA
IDD3P 20 15 mA
IDD3N 45 40 mA
IDD4R 140 120 mA
IDD4W 135 120 mA
IDD5 135 115 mA
IDD6 Normal 5 5 mA
Low power 3 3 mA
IDD7A 255 230 mA
15.0 DDR SDRAM IDD spec table
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
14 of 24
Note :
1. VID is the magnitude of the difference between the input level on CK and the input level on CK.
2. The value of VIX is expected to equal 0.5*VDDQ of the transmitting device and must track variations in the dc level of the same.
Parameter/Condition Symbol Min Max Unit Note
Input High (Logic 1) Voltage, DQ, DQS and DM signals VIH(AC) VREF + 0.31 V
Input Low (Logic 0) Voltage, DQ, DQS and DM signals. VIL(AC) VREF - 0.31 V
Input Differential Voltage, CK and CK inputs VID(AC) 0.7 VDDQ+0.6 V1
Input Crossing Point Voltage, CK and CK inputs VIX(AC) 0.5*VDDQ-0.2 0.5*VDDQ+0.2 V2
Parameter Specification
DDR400 DDR333 DDR266
Maximum peak amplitude allowed for overshoot 1.5 V 1.5 V 1.5 V
Maximum peak amplitude allowed for undershoot 1.5 V 1.5 V 1.5 V
The area between the overshoot signal and VDD must be less than or equal to 4.5 V-ns 4.5 V-ns 4.5 V-ns
The area between the undershoot signal and GND must be less than or equal to 4.5 V-ns 4.5 V-ns 4.5 V-ns
5
4
3
2
1
0
-1
-2
-3
-4
-5
0
0.5
0.6875
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.3125
6.5
7.0
VDD Overshoot
Maximum Amplitude = 1.5V
Area
Maximum Amplitude = 1.5V
undershoot
GND
Volts (V)
Tims(ns)
AC overshoot/Undershoot Definition
16.0 AC Operating Conditions
17.0 AC Overshoot/Undershoot specification for Address and Control Pins
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
15 of 24
Parameter Specification
DDR400 DDR333 DDR266
Maximum peak amplitude allowed for overshoot 1.2 V 1.2 V 1.2 V
Maximum peak amplitude allowed for undershoot 1.2 V 1.2 V 1.2 V
The area between the overshoot signal and VDD must be less than or equal to 2.4 V-ns 2.4 V-ns 2.4 V-ns
The area between the undershoot signal and GND must be less than or equal to 2.4 V-ns 2.4 V-ns 2.4 V-ns
5
4
3
2
1
0
-1
-2
-3
-4
-5
0 0.5 1.0 1.42 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 5.68 6.0 6.5 7.0
VDDQ
Overshoot
Maximum Amplitude = 1.2V
Area
Maximum Amplitude = 1.2V
undershoot
GND
Volts (V)
Tims(ns)
DQ/DM/DQS AC overshoot/Undershoot Definition
18.0 Overshoot/Undershoot specification for Data, Strobe and Mask Pins
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
16 of 24
Parameter Symbol
CC
(DDR400@CL=3.0)
B3
(DDR333@CL=2.5)
B0
(DDR266@CL=2.5) Unit Note
Min Max Min Max Min Max
Row cycle time tRC 55 60 65 ns
Refresh row cycle time tRFC 70 72 75 ns
Row active time tRAS 40 70K 42 70K 45 120K ns
RAS to CAS delay tRCD 15 18 20 ns
Row precharge time tRP 15 18 20 ns
Row active to Row active delay tRRD 10 12 15 ns
Write recovery time tWR 15 15 15 ns
Last data in to Read command tWTR 2 1 1 tCK
Clock cycle time CL=2.0
tCK
--7.5121012
nsCL=2.5 6 12 6 12 7.5 12
CL=3.0 5 10 - - - -
Clock high level width tCH 0.45 0.55 0.45 0.55 0.45 0.55 tCK
Clock low level width tCL 0.45 0.55 0.45 0.55 0.45 0.55 tCK
DQS-out access time from CK/CK tDQSCK -0.55 +0.55 -0.6 +0.6 -0.75 +0.75 ns
Output data access time from CK/CK tAC -0.65 +0.65 -0.7 +0.7 -0.75 +0.75 ns
Data strobe edge to ouput data edge tDQSQ - 0.4 - 0.4 - 0.5 ns 22
Read Preamble tRPRE 0.9 1.1 0.9 1.1 0.9 1.1 tCK
Read Postamble tRPST 0.4 0.6 0.4 0.6 0.4 0.6 tCK
CK to valid DQS-in tDQSS 0.72 1.28 0.75 1.25 0.75 1.25 tCK
DQS-in setup time tWPRES 0 0 0 ns 13
DQS-in hold time tWPRE 0.25 0.25 0.25 tCK
DQS falling edge to CK rising-setup time tDSS 0.2 0.2 0.2 tCK
DQS falling edge from CK rising-hold time tDSH 0.2 0.2 0.2 tCK
DQS-in high level width tDQSH 0.35 0.35 0.35 tCK
DQS-in low level width tDQSL 0.35 0.35 0.35 tCK
Address and Control Input setup time(fast) tIS 0.6 0.75 0.9 ns 15, 17~19
Address and Control Input hold time(fast) tIH 0.6 0.75 0.9 ns 15, 17~19
Address and Control Input setup tIS 0.7 0.8 1.0 ns 16~19
Address and Control Input hold time(slow) tIH 0.7 0.8 1.0 ns 16~19
Data-out high impedence time from CK/CK tHZ -0.65 +0.65 -0.7 +0.7 -0.75 +0.75 ns 11
Data-out low impedence time from CK/CK tLZ -0.65 +0.65 -0.7 +0.7 -0.75 +0.75 ns 11
Mode register set cycle time tMRD 10 12 15 ns
DQ & DM setup time to DQS tDS 0.4 0.45 0.5 ns j, k
DQ & DM hold time to DQS tDH 0.4 0.45 0.5 ns j, k
Control & Address input pulse width tIPW 2.2 2.2 2.2 ns 18
DQ & DM input pulse width tDIPW 1.75 1.75 1.75 ns 18
Exit self refresh to non-Read command tXSNR 75 75 75 ns
Exit self refresh to read command tXSRD 200 200 200 tCK
Refresh interval time tREFI 7.8 7.8 7.8 us 14
Output DQS valid window tQH tHP
-tQHS -tHP
-tQHS -tHP
-tQHS -ns21
Clock half period tHP tCLmin
or tCHmin -tCLmin
or tCHmin -tCLmin
or tCHmin -ns20, 21
Data hold skew factor tQHS 0.5 0.55 0.75 ns 21
DQS write postamble time tWPST 0.4 0.6 0.4 0.6 0.4 0.6 tCK 12
Active to Read with Auto precharge
command tRAP 15 18 20
Autoprecharge write recovery +
Precharge time tDAL
(tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
+
(tRP/tCK)
(tWR/tCK)
+
(tRP/tCK)
tCK 23
Power Down Exit Time tPDEX 111tCK
19.0 AC Timming Parameters & Specifications
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
17 of 24
The following specification parameters are required in systems using DDR333, DDR266 & DDR400 devices to ensure proper system
performance. these characteristics are for system simulation purposes and are guaranteed by design.
Table 1 : Input Slew Rate for DQ, DQS, and DM
Table 2 : Input Setup & Hold Time Derating for Slew Rate
Table 3 : Input/Output Setup & Hold Time Derating for Slew Rate
Table 4 : Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
Table 5 : Output Slew Rate Characteristice (X4, X8 Devices only)
Table 6 : Output Slew Rate Characteristice (X16 Devices only)
Table 7 : Output Slew Rate Matching Ratio Characteristics
AC CHARACTERISTICS DDR400 DDR333 DDR266
PARAMETER SYMBOL MIN MAX MIN MAX MIN MAX Units Notes
DQ/DM/DQS input slew rate measured between
VIH(DC), VIL(DC) and VIL(DC), VIH(DC) DCSLEW 0.5 4.0 0.5 4.0 0.5 4.0 V/ns a, l
Input Slew Rate ∆tIS ∆tIH Units Notes
0.5 V/ns 0 0 ps i
0.4 V/ns +50 0 ps i
0.3 V/ns +100 0 ps i
Input Slew Rate ∆tDS ∆tDH Units Notes
0.5 V/ns 0 0 ps k
0.4 V/ns +75 +75 ps k
0.3 V/ns +150 +150 ps k
Delta Slew Rate ∆tDS ∆tDH Units Notes
+/- 0.0 V/ns 0 0 ps j
+/- 0.25 V/ns +50 +50 ps j
+/- 0.5 V/ns +100 +100 ps j
Slew Rate Characteristic Typical Range
(V/ns)
Minimum
(V/ns)
Maximum
(V/ns) Notes
Pullup Slew Rate 1.2 ~ 2.5 1.0 4.5 a,c,d,f,g,h
Pulldown slew 1.2 ~ 2.5 1.0 4.5 b,c,d,f,g,h
Slew Rate Characteristic Typical Range
(V/ns)
Minimum
(V/ns)
Maximum
(V/ns) Notes
Pullup Slew Rate 1.2 ~ 2.5 0.7 5.0 a,c,d,f,g,h
Pulldown slew 1.2 ~ 2.5 0.7 5.0 b,c,d,f,g,h
AC CHARACTERISTICS DDR400 DDR333 DDR266
PARAMETER MIN MAX MIN MAX MIN MAX Notes
Output Slew Rate Matching Ratio (Pullup to Pulldown) 0.67 1.5 0.67 1.5 0.67 1.5 e, l
20.0 System Characteristics for DDR SDRAM
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
18 of 24
1. All voltages referenced to Vss.
2. Tests for ac timing, IDD, and electrical, ac and dc characteristics, may be conducted at nominal reference/supply voltage levels,
but the related specifications and device operation are guaranteed for the full voltage range specified.
3. Figure 1 represents the timing reference load used in defining the relevant timing parameters of the part. It is not intended to be
either a precise representation of the typical system environment nor a depiction of the actual load presented by a production
tester. System designers will use IBIS or other simulation tools to correlate the timing reference load to a system environment.
Manufacturers will correlate to their production test conditions (generally a coaxial transmission line terminated at the tester elec-
tronics).
4. AC timing and IDD tests may use a VIL to VIH swing of up to 1.5 V in the test environment, but input timing is still referenced to
VREF (or to the crossing point for CK/CK), and parameter specifications are guaranteed for the specified ac input levels under nor-
mal use conditions. The minimum slew rate for the input signals is 1 V/ns in the range between VIL(AC) and VIH(AC).
5. The ac and dc input level specifications are as defined in the SSTL_2 Standard (i.e., the receiver will effectively switch as a result
of the signal crossing the ac input level and will remain in that state as long as the signal does not ring back above (below) the dc
input LOW (HIGH) level.
6. Inputs are not recognized as valid until VREF stabilizes. Exception: during the period before VREF stabilizes, CKE ≤ 0.2VDDQ is
recognized as LOW.
7. Enables on.chip refresh and address counters.
8. IDD specifications are tested after the device is properly initialized.
9. The CK/CK input reference level (for timing referenced to CK/CK) is the point at which CK and CK cross; the input reference level
for signals other than CK/CK, is VREF
.
10. The output timing reference voltage level is VTT
.
11. tHZ and tLZ transitions occur in the same access time windows as valid data transitions. These parameters are not referenced to
a specific voltage level but specify when the device output is no longer driving (HZ), or begins driving (LZ).
12. The maximum limit for this parameter is not a device limit. The device will operate with a greater value for this parameter, but sys
tem performance (bus turnaround) will degrade accordingly.
13. The specific requirement is that DQS be valid (HIGH, LOW, or at some point on a valid transition) on or before this CK edge. A
valid transition is defined as monotonic and meeting the input slew rate specifications of the device. when no writes were previ
ously in progress on the bus, DQS will be transitioning from High- Z to logic LOW. If a previous write was in progress, DQS could
be HIGH, LOW, or transitioning from HIGH to LOW at this time, depending on tDQSS.
14. A maximum of eight AUTO REFRESH commands can be posted to any given DDR SDRAM device.
15. For command/address input slew rate ≥ 1.0 V/ns
16. For command/address input slew rate ≥ 0.5 V/ns and < 1.0 V/ns
Output
VDDQ
50Ω
30pF
(VOUT)
Figure 1 : Timing Reference Load
21.0 Component Notes
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
19 of 24
Component Notes
17. For CK & CK slew rate ≥ 1.0 V/ns
18. These parameters guarantee device timing, but they are not necessarily tested on each device. They may be guaranteed by
device design or tester correlation.
19. Slew Rate is measured between VOH(AC) and VOL(AC).
20. Min (tCL, tCH) refers to the smaller of the actual clock low time and the actual clock high time as provided to the device (i.e. this
value can be greater than the minimum specification limits for tCL and tCH).....For example, tCL and tCH are = 50% of the
period, less the half period jitter (tJIT(HP)) of the clock source, and less the half period jitter due to crosstalk (tJIT(crosstalk)) into
the clock traces.
21. tQH = tHP - tQHS, where:
tHP = minimum half clock period for any given cycle and is defined by clock high or clock low (tCH, tCL). tQHS accounts for 1) The
pulse duration distortion of on-chip clock circuits; and 2) The worst case push-out of DQS on one tansition followed by the worst
case pull-in of DQ on the next transition, both of which are, separately, due to data pin skew and output pattern effects, and p-
channel to n-channel variation of the output drivers.
22. tDQSQ
Consists of data pin skew and output pattern effects, and p-channel to n-channel variation of the output drivers for any given cycle.
23. tDAL = (tWR/tCK) + (tRP/tCK)
For each of the terms above, if not already an integer, round to the next highest integer. Example: For DDR266 at CL=2.5 and
tCK=7.5ns tDAL = (15 ns / 7.5 ns) + (20 ns/ 7.5ns) = (2) + (3)
tDAL = 5 clocks
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
20 of 24
b. Pulldown slew rate is measured under the test conditions shown in Figure 3.
Output
Test point
VDDQ
50Ω
Figure 3 : Pulldown slew rate test load
c. Pullup slew rate is measured between (VDDQ/2 - 320 mV +/- 250 mV)
Pulldown slew rate is measured between (VDDQ/2 + 320 mV +/- 250 mV)
Pullup and Pulldown slew rate conditions are to be met for any pattern of data, including all outputs switching and only one output
switching.
Example : For typical slew rate, DQ0 is switching
For minmum slew rate, all DQ bits are switching from either high to low, or low to high.
The remaining DQ bits remain the same as for previous state.
d. Evaluation conditions
Typical : 25 °C (T Ambient), VDDQ = 2.5V(for DDR266/333) and 2.6V(for DDR400), typical process
Minimum : 70 °C (T Ambient), VDDQ = 2.3V(for DDR266/333) and 2.5V(for DDR400), slow - slow process
Maximum : 0 °C (T Ambient), VDDQ = 2.7V(for DDR266/333) and 2.7V(for DDR400), fast - fast process
e. The ratio of pullup slew rate to pulldown slew rate is specified for the same temperature and voltage, over the entire temperature and
voltage range. For a given output, it represents the maximum difference between pullup and pulldown drivers due to process variation.
f. Verified under typical conditions for qualification purposes.
g. TSOPII package divices only.
h. Only intended for operation up to 400 Mbps per pin.
i. A derating factor will be used to increase tIS and tIH in the case where the input slew rate is below 0.5V/ns
as shown in Table 2. The Input slew rate is based on the lesser of the slew rates detemined by either VIH(AC) to VIL(AC) or
VIH(DC) to VIL(DC), similarly for rising transitions.
j. A derating factor will be used to increase tDS and tDH in the case where DQ, DM, and DQS slew rates differ, as shown in Tables 3 & 4.
Input slew rate is based on the larger of AC-AC delta rise, fall rate and DC-DC delta rise, Input slew rate is based on the lesser of the
slew rates determined by either VIH(AC) to VIL(AC) or VIH(DC) to VIL(DC), similarly for rising transitions.
The delta rise/fall rate is calculated as:
{1/(Slew Rate1)} - {1/(Slew Rate2)}
For example : If Slew Rate 1 is 0.5 V/ns and slew Rate 2 is 0.4 V/ns, then the delta rise, fall rate is - 0.5ns/V . Using the table given, this
would result in the need for an increase in tDS and tDH of 100 ps.
k. Table 3 is used to increase tDS and tDH in the case where the I/O slew rate is below 0.5 V/ns. The I/O slew rate is based on the lesser
on the lesser of the AC - AC slew rate and the DC- DC slew rate. The inut slew rate is based on the lesser of the slew rates deter
mined by either VIH(AC) to VIL(AC) or VIH(DC) to VIL(DC), and similarly for rising transitions.
l. DQS, DM, and DQ input slew rate is specified to prevent double clocking of data and preserve setup and hold times. Signal transi
tions through the DC region must be monotonic.
a. Pullup slew rate is characteristized under the test conditions as shown in Figure 2.
Output
Test point
VSSQ
50Ω
Figure 2 : Pullup slew rate test load
22.0 System Notes
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
21 of 24
Figure 4. I/V characteristics for input/output buffers:Pulldown(above) and pullup(below)
Maximum
Typical High
Minumum
Vout(V)
Iout(mA)
-220
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
0.0 1.0 2.0
Minimum
Typical Low
Typical High
Maximum
0
20
40
60
80
100
120
140
160
0.0 0.5 1.0 1.5 2.0 2.5
Iout(mA)
Typical Low
Vout(V)
Pulldown Characteristics for Full Strength Output Driver
Pullup Characteristics for Full Strength Output Driver
DDR SDRAM Output Driver V-I Characteristics
DDR SDRAM Output driver characteristics are defined for full and half strength operation as selected by the EMRS bit A1.
Figures 4 and 5 show the driver characteristics graphically, and tables 8 and 9 show the same data in tabular format suitable for input
into simulation tools. The driver characteristcs evaluation conditions are:
Output Driver Characteristic Curves Notes:
1. The full variation in driver current from minimum to maximum process, temperature and voltage will lie within the outer bounding lines
the of the V-I curve of Figures 4 and 5.
2. It is recommended that the "typical" IBIS V-I curve lie within the inner bounding lines of the V-I curves of Figures 4 and 5.
3. The full variation in the ratio of the "typical" IBIS pullup to "typical" IBIS pulldown current should be unity +/- 10%, for device drain to
source voltages from 0.1 to1.0. This specification is a design objective only. It is not guaranteed.
Typical 25×C VDD/VDDQ = 2.5V, typical process
Minimum 70×C VDD/VDDQ = 2.3V, slow-slow process
Maximum 0×C VDD/VDDQ = 2.7V, fast-fast process
23.0 IBIS : I/V Characteristics for Input and Output Buffers
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
22 of 24
Table 8. Full Strength Driver Characteristics
Pulldown Current (mA) pullup Current (mA)
Voltage
(V)
Typical
Low
Typical
High Minimum Maximum
Typical
Low
Typical
High Minimum Maximum
0.1 6.0 6.8 4.6 9.6 -6.1 -7.6 -4.6 -10.0
0.2 12.2 13.5 9.2 18.2 -12.2 -14.5 -9.2 -20.0
0.3 18.1 20.1 13.8 26.0 -18.1 -21.2 -13.8 -29.8
0.4 24.1 26.6 18.4 33.9 -24.0 -27.7 -18.4 -38.8
0.5 29.8 33.0 23.0 41.8 -29.8 -34.1 -23.0 -46.8
0.6 34.6 39.1 27.7 49.4 -34.3 -40.5 -27.7 -54.4
0.7 39.4 44.2 32.2 56.8 -38.1 -46.9 -32.2 -61.8
0.8 43.7 49.8 36.8 63.2 -41.1 -53.1 -36.0 -69.5
0.9 47.5 55.2 39.6 69.9 -41.8 -59.4 -38.2 -77.3
1.0 51.3 60.3 42.6 76.3 -46.0 -65.5 -38.7 -85.2
1.1 54.1 65.2 44.8 82.5 -47.8 -71.6 -39.0 -93.0
1.2 56.2 69.9 46.2 88.3 -49.2 -77.6 -39.2 -100.6
1.3 57.9 74.2 47.1 93.8 -50.0 -83.6 -39.4 -108.1
1.4 59.3 78.4 47.4 99.1 -50.5 -89.7 -39.6 -115.5
1.5 60.1 82.3 47.7 103.8 -50.7 -95.5 -39.9 -123.0
1.6 60.5 85.9 48.0 108.4 -51.0 -101.3 -40.1 -130.4
1.7 61.0 89.1 48.4 112.1 -51.1 -107.1 -40.2 -136.7
1.8 61.5 92.2 48.9 115.9 -51.3 -112.4 -40.3 -144.2
1.9 62.0 95.3 49.1 119.6 -51.5 -118.7 -40.4 -150.5
2.0 62.5 97.2 49.4 123.3 -51.6 -124.0 -40.5 -156.9
2.1 62.9 99.1 49.6 126.5 -51.8 -129.3 -40.6 -163.2
2.2 63.3 100.9 49.8 129.5 -52.0 -134.6 -40.7 -169.6
2.3 63.8 101.9 49.9 132.4 -52.2 -139.9 -40.8 -176.0
2.4 64.1 102.8 50.0 135.0 -52.3 -145.2 -40.9 -181.3
2.5 64.6 103.8 50.2 137.3 -52.5 -150.5 -41.0 -187.6
2.6 64.8 104.6 50.4 139.2 -52.7 -155.3 -41.1 -192.9
2.7 65.0 105.4 50.5 140.8 -52.8 -160.1 -41.2 -198.2
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
23 of 24
Figure 5. I/V characteristics for input/output buffers:Pulldown(above) and pullup(below)
Maximum
Typical High
Minumum
V
OUT
(V)
Iout(mA)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.0 1.0 2.0
Iout(mA)
Minimum
Typical Low
Typical High
Maximum
0
10
20
30
40
50
60
70
80
90
0.0 1.0 2.0
Iout(mA)
Typical Low
Vout(V)
Pulldown Characteristics for Weak Output Driver
Pullup Characteristics for Weak Output Driver
Rev. 1.1 November 2009
DDR SDRAM
K4H510438G
K4H510838G
K4H511638G
24 of 24
Pulldown Current (mA) pullup Current (mA)
Voltage
(V)
Typical
Low
Typical
High Minimum Maximum
Typical
Low
Typical
High Minimum Maximum
0.1 3.4 3.8 2.6 5.0 -3.5 -4.3 -2.6 -5.0
0.2 6.9 7.6 5.2 9.9 -6.9 -8.2 -5.2 -9.9
0.3 10.3 11.4 7.8 14.6 -10.3 -12.0 -7.8 -14.6
0.4 13.6 15.1 10.4 19.2 -13.6 -15.7 -10.4 -19.2
0.5 16.9 18.7 13.0 23.6 -16.9 -19.3 -13.0 -23.6
0.6 19.6 22.1 15.7 28.0 -19.4 -22.9 -15.7 -28.0
0.7 22.3 25.0 18.2 32.2 -21.5 -26.5 -18.2 -32.2
0.8 24.7 28.2 20.8 35.8 -23.3 -30.1 -20.4 -35.8
0.9 26.9 31.3 22.4 39.5 -24.8 -33.6 -21.6 -39.5
1.0 29.0 34.1 24.1 43.2 -26.0 -37.1 -21.9 -43.2
1.1 30.6 36.9 25.4 46.7 -27.1 -40.3 -22.1 -46.7
1.2 31.8 39.5 26.2 50.0 -27.8 -43.1 -22.2 -50.0
1.3 32.8 42.0 26.6 53.1 -28.3 -45.8 -22.3 -53.1
1.4 33.5 44.4 26.8 56.1 -28.6 -48.4 -22.4 -56.1
1.5 34.0 46.6 27.0 58.7 -28.7 -50.7 -22.6 -58.7
1.6 34.3 48.6 27.2 61.4 -28.9 -52.9 -22.7 -61.4
1.7 34.5 50.5 27.4 63.5 -28.9 -55.0 -22.7 -63.5
1.8 34.8 52.2 27.7 65.6 -29.0 -56.8 -22.8 -65.6
1.9 35.1 53.9 27.8 67.7 -29.2 -58.7 -22.9 -67.7
2.0 35.4 55.0 28.0 69.8 -29.2 -60.0 -22.9 -69.8
2.1 35.6 56.1 28.1 71.6 -29.3 -61.2 -23.0 -71.6
2.2 35.8 57.1 28.2 73.3 -29.5 -62.4 -23.0 -73.3
2.3 36.1 57.7 28.3 74.9 -29.5 -63.1 -23.1 -74.9
2.4 36.3 58.2 28.3 76.4 -29.6 -63.8 -23.2 -76.4
2.5 36.5 58.7 28.4 77.7 -29.7 -64.4 -23.2 -77.7
2.6 36.7 59.2 28.5 78.8 -29.8 -65.1 -23.3 -78.8
2.7 36.8 59.6 28.6 79.7 -29.9 -65.8 -23.3 -79.7
Table 9. Weak Driver Characteristics
