1
Rev. 0403H–06/06
High-
performance
EE PLD
ATF16LV8C
Features
3.0V to 5.5V Operation
Industry-standard Architecture
Emulates Many 20-pin PALs®
Low-cost Easy-to-use Software Tools
High-speed
10 ns Maximum Pin-to-pin Delay
Ultra-low Power
–5 µA (Max) Pin-controlled Power-down Mode Option
Typical 100 nA Standby
CMOS and TTL Compatible Inputs and Outputs
I/O Pin-keeper Circuits
Advanced Flash Technology
Reprogrammable
100% Tested
High-reliability CMOS Process
20 Year Data Retention
100 Erase/Write Cycles
2,000V ESD Protection
200 mA Latchup Immunity
Commercial and Industrial Temperature Ranges
Dual-in-line and Surface Mount Packages in Standard Pinouts
Inputs are 5V Tolerant
Green Package Options (Pb/Halide-free/RoHS Compliant) Available
Description
The ATF16LV8C is a high-performance EECMOS programmable logic device that uti-
lizes Atmel’s proven electrically-erasable Flash memory technology. Speeds down to
10 ns and a 5 µA pin-controlled power-down mode option are offered. All speed
Pin Configurations
All Pinouts Top View
Pin Name Function
CLK Clock
I Logic Inputs
I/O Bi-directional Buffers
OE Output Enable
VCC (+3V to 5.5V) Supply
PD Programmable Power-
down Option
PLCC
4
5
6
7
8
18
17
16
15
14
PD/I3
I4
I5
I6
I7
I/O
I/O
I/O
I/O
I/O
3
2
1
20
19
9
10
11
12
13
I8
GND
I9/OE
I/O
I/O
I2
I1
I/CLK
VCC
I/O
DIP/SOIC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
I/CLK
I1
I2
PD/I3
I4
I5
I6
I7
I8
GND
VCC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I9/OE
TSSOP
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
I/CLK
I1
I2
PD/I3
I4
I5
I6
I7
I8
GND
VCC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I9/OE
(continued)
ATF16LV8C
2
ranges are specified over the full 3.0V to 5.25V range for
industrial and commercial temperature ranges.
The ATF16LV8C incorporates a superset of the generic
architectures, which allows direct replacement of the 16R8
family and most 20-pin combinatorial PLDs. Eight outputs
are each allocated eight product terms. Three different
modes of operation, configured automatically with soft-
ware, allow highly complex logic functions to be realized.
The ATF16LV8C can significantly reduce total system
power, thereby enhancing system reliability and reducing
power supply costs. When pin 4 is configured as the
power-down control pin, supply current drops to less than
5µA whenever the pin is high. If the power-down feature
isn't required for a particular application, pin 4 may be used
as a logic input. Also, the pin keeper circuits eliminate the
need for internal pull-up resistors along with their attendant
power consumption.
Block Diagram
Note: 1. Includes optional PD control pin.
Absolute Maximum Ratings*
Temperature Under Bias.................................. -40°C to +85°C *NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Note: 1. Minimum voltage is -0.6V DC, which may under-
shoot to -2.0V for pulses of less than 20 ns.
Maximum output pin voltage is Vcc + 0.75V DC,
which may overshoot to 7.0V for pulses of less
than 20 ns.
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground .........................................-2.0V to +7.0V(1)
Voltage on Input Pins
with Respect to Ground
During Programming.....................................-2.0V to +14.0V(1)
Programming Voltage with
Respect to Ground .......................................-2.0V to +14.0V(1)
DC and AC Operating Conditions
Commercial
Operating Temperature (Ambient) 0°C - 70°C
VCC Power Supply 3.0V to 5.5V
ATF16LV8C
3
Note: 1. All ICC parameters measured with outputs open.
2. For DC characteristics, the test condition of VCC = Max corresponds to 3.6V.
AC Waveforms(1)
Note: 1. Timing measurement reference is 1.5V. Input AC driving levels are 0.0V and 3.0V, unless otherwise specified.
DC Characteristics
Symbol Parameter Condition(2) Min Typ Max Units
IIL Input or I/O Low Leakage Current 0 VIN VIL(Max) -10 µA
IIH Input or I/O High Leakage Current 1.8 VIN VCC 10 µA
ICC1(1) Power Supply Current
15 MHz, VCC = Max,
VIN = 0, VCC,
Outputs Open
Com.
Ind.
55
60 mA
IPD(1) Power Supply Current, Power-down Mode VCC = Max,
VIN = 0, VCC
0.1 5 µA
IOS Output Short Circuit Current VOUT = 0.5V;
VCC= 3V; TA = 25°C -150 mA
VIL Input Low Voltage MIN < VCC < Max -0.5 0.8 V
VIH Input High Voltage 2.0 VCC + 1 V
VOL Output Low Voltage VCC = Min; All Outputs
IOL = 8 mA 0.5 V
VOH Output High Voltage VCC = Min
IOH = -4 mA 2.4 V
IOL Output Low Current VCC = Min 8 mA
IOH Output High Current VCC = Min -4 mA
ATF16LV8C
4
Notes: 1. Output data is latched and held.
2. High-Z outputs remain High-Z.
3. Clock and input transitions are ignored.
AC Characteristics
Symbol Parameter
-10 -15
UnitsMin Max Min Max
tPD Input or Feedback to Non-Registered Output 1 10 1 15 ns
tCF Clock to Feedback 5 8 ns
tCO Clock to Output 2 7 2 10 ns
tSInput or Feedback Setup Time 7 12 ns
tHInput Hold Time 0 0 ns
tPClock Period 12 16 ns
tWClock Width 6 8 ns
fMAX
External Feedback 1/(tS+ tCO) 71.4 45.5 MHz
Internal Feedback 1/(tS + tCF) 83.3 50 MHz
No Feedback 1/(tP) 83.3 62.5 MHz
tEA Input to Output Enable — Product Term 3 10 3 15 ns
tER Input to Output Disable — Product Term 2 10 2 15 ns
tPZX OE pin to Output Enable 2 8 2 15 ns
tPXZ OE pin to Output Disable 1.5 8 1.5 15 ns
Power-down AC Characteristics(1)(2)(3)
Symbol Parameter
-10 -15
UnitsMin Max Min Max
tIVDH Valid Input before PD High 10 15 ns
tGVDH Valid OE before PD High 0 0 ns
tCVDH Valid Clock before PD High 0 0 ns
tDHIX Input Don't Care after PD High 10 15 ns
tDHGX OE Don't Care after PD High 10 15 ns
tDHCX Clock Don't Care after PD High 10 15 ns
tDLIV PD Low to Valid Input 10 15 ns
tDLGV PD Low to Valid OE 25 30 ns
tDLCV PD Low to Valid Clock 25 30 ns
tDLOV PD Low to Valid Output 30 35 ns
ATF16LV8C
5
Input Test Waveforms and
Measurement Levels:
tR, tF < 1.5ns (10% to 90%)
Output Test Loads:
Commercial
Note: Similar devices are tested with slightly different loads.
These load differences may affect output signals’ delay
and slew rate. Atmel devices are tested with sufficient
margins to meet compatible devices.
Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
Power-up Reset
The ATF16LV8C’s registers are designed to reset during
power-up. At a point delayed slightly from VCC crossing
VRST, all registers will be reset to the low state. As a result,
the registered output state will always be high on power-up.
This feature is critical for state machine initialization.
However, due to the asynchronous nature of reset and the
uncertainty of how VCC actually rises in the system, the
following conditions are required:
1. The VCC rise must be monotonic from below 0.7V.
2. The signals from which the clock is derived must
remain stable during TPR.
3. After TPR, all input and feedback setup times must
be met before driving the clock term high.
OUTPUT
PIN
3.3V
CL = 35 pF
R1 = 316
R2 = 348
Pin Capacitance
(f = 1 MHz, T = 25°C)(1)
Typ Max Units Conditions
CIN 58 pF V
IN = 0V
COUT 68 pF V
OUT = 0V
Parameter Description Typ Max Units
TPR
Power-up
Reset Time 600 1,000 ns
VRST
Power-up
Reset
Voltage
2.5 3.0 V
ATF16LV8C
6
37.0
37.5
38.0
38.5
39.0
39.5
40.0
10 20 30 40 50 60 70 80 90 100
SUPPLY CURRENT
VS. INPUT FREQUENCY
(VCC = 3.3V, TA = 25°C)
ICC mA
FREQUENCY (MHz)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
-5° 25° 75°
NORMALIZED SUPPLY CURRENT
VS. AMBIENT TEMPERATURE
(VCC = 3.3V, STANDBY)
AMBIENT TEMPERATURE (C)
NORM
ICC mA
20.5
21.0
21.5
22.0
22.5
23.0
23.5
24.0
24.5
25.0
3.0 3.15 3.3 3.45 3.6
OUTPUT SINK CURRENT
VS. SUPPLY VOLTAGE (TA = 25°C, VOL = 0.45V)
IOL mA
SUPPLY VOLTAGE (V)
0
10
20
30
40
50
60
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
IOL mA
OUTPUT VOLTAGE (V)
OUTPUT SINK CURRENT
VS. OUTPUT VOLTAGE (VCC = 5V, TA = 25°C)
3.0 3.3 3.6
1.6
1.4
1.2
1.0
0.8
0.6
0
NORMALIZED SUPPLY CURRENT
VS. SUPPLY VOLTAGE
(TA = 25°C, STANDBY)
SUPPLY VOLTAGE (V)
NORM
ICC mA
-16
-14
-12
-10
-8
-6
-4
-2
0
3.0 3.15 3.3 3.45 3.6
OUTPUT SOURCE CURRENT
VS. SUPPLY VOLTAGE (VOH = 2.4V, TA = 25°C)
IOH mA
SUPPLY VOLTAGE (V)
ATF16LV8C
7
-30
-25
-20
-15
-10
-5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.
3
OUTPUT SOURCE CURRENT
VS. OUTPUT VOLTAGE (VCC = 5V, TA = 25°C)
IOH mA
OUTPUT VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
3.0 3.25 3.6
NORMALIZED tPD
VS. SUPPLY VOLTAGE (TA = 25°C)
SUPPLY VOLTAGE (V)
NORM
tPD
0.90
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
-5° 25° 75°
NORMALIZED tPD
VS. AMBIENT TEMPERATURE (VCC = 3.3V)
AMBIENT TEMPERATURE (C)
NORM
tPD
0.88
0.90
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
-5° 25° 75°
NORMALIZED tCO
VS. AMBIENT TEMPERATURE (VCC = 3.3V)
AMBIENT TEMPERATURE (C)
NORM
tCO
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
-5° 25°
75°
NORMALIZED tS
VS. AMBIENT TEMPERATURE (VCC = 3.3V)
AMBIENT TEMPERATURE (C)
NORM
tS
0
0.2
0.4
0.6
0.8
1.0
1.2
-5° 25° 75°
NORMALIZED tH
VS. AMBIENT TEMPERATURE (VCC = 3.3V)
AMBIENT TEMPERATURE (C)
NORM
tH
ATF16LV8C
8
0
0.2
0.4
0.6
0.8
1.0
1.2
3.0 3.25 3.6
NORMALIZED tCO
VS. SUPPLY VOLTAGE (TA = 25°C)
SUPPLY VOLTAGE (V)
NORM
tCO
0
0.2
0.4
0.6
0.8
1.0
1.2
3.0 3.25 3.6
NORMALIZED tS
VS. SUPPLY VOLTAGE (TA = 25°C)
NORM
tS
SUPPLY VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
3.0 3.25 3.6
NORMALIZED tH
VS. SUPPLY VOLTAGE (TA = 25°C)
SUPPLY VOLTAGE (V)
NORM
tH
-80
-70
-60
-50
-40
-30
-20
-10
0
0-0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0
INPUT CLAMP CURRENT
VS. INPUT VOLTAGE (TA = 25°C, VCC = 3.3V)
INPUT VOLTAGE (V)
INPUT
CURRENT
mA
INPUT CURRENT
VS. INPUT VOLTAGE (TA = 25°C, VCC = 3.3V)
INPUT VOLTAGE (V)
INPUT
CURRENT
mA
-20
-15
-10
-5
0
5
10
15
20
25
30
35
0 0.5 1.5 2.5 3.3
1.0 2.0 3.0
ATF16LV8C
9
Using “C” Product for Industrial
To use commercial product for industrial temperature ranges, simply de-rate ICC by 15% on the “C” device. No speed
de-rating is necessary.
Ordering Information
tPD
(ns)
tS
(ns)
tCO
(ns) Ordering Code Package Operation Range
10 7 7 ATF16LV8C-10JC
ATF16LV8C-10PC
ATF16LV8C-10SC
ATF16LV8C-10XC
20J
20P3
20S
20X
Commercial
(0°C to 70°C)
15 12 10 ATF16LV8C-15JC
ATF16LV8C-15PC
ATF16LV8C-15SC
ATF16LV8C-15XC
20J
20P3
20S
20X
Commercial
(0°C to 70°C)
10 7 7 ATF16LV8C-10JI
ATF16LV8C-10PI
ATF16LV8C-10SI
ATF16LV8C-10XI
20J
20P3
20S
20X
Industrial
(-40°C to 85°C)
15 12 10 ATF16LV8C-15JI
ATF16LV8C-15PI
ATF16LV8C-15SI
ATF16LV8C-15XI
20J
20P3
20S
20X
Industrial
(-40°C to 85°C)
Green Package Options (Pb/Halide-free/RoHS Compliant)
tPD
(ns)
tS
(ns)
tCO
(ns) Ordering Code Package Operation Range
10 7 7 ATF16LV8C-10JU
ATF16LV8C-10SU
ATF16LV8C-10XU
20J
20S
20X
Industrial
(-40°C to 85°C)
Package Type
20J 20-lead, Plastic J-leaded Chip Carrier (PLCC)
20P3 20-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
20S 20-lead, 0.300" Wide, Plastic Gull-wing Small Outline (SOIC)
20X 20-lead, 4.4 mm Wide, Plastic Thin Shrink Small Outline (TSSOP)
ATF16LV8C
10
Packaging Information
20J – PLCC
2325 Orchard Parkway
San Jose, CA 95131
R
TITLE DRAWING NO. REV.
Notes: 1. This package conforms to JEDEC reference MS-018, Variation AA.
2. Dimensions D1 and E1 do not include mold protrusion.
Allowable protrusion is .010"(0.254 mm) per side. Dimension D1
and E1 include mold mismatch and are measured at the extreme
material condition at the upper or lower parting line.
3. Lead coplanarity is 0.004" (0.102 mm) maximum.
A 4.191 4.572
A1 2.286 3.048
A2 0.508
D 9.779 10.033
D1 8.890 9.042 Note 2
E 9.779 10.033
E1 8.890 9.042 Note 2
D2/E2 7.366 8.382
B 0.660 0.813
B1 0.330 0.533
e 1.270 TYP
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTE
1.14(0.045) X 45˚ PIN NO. 1
IDENTIFIER
1.14(0.045) X 45˚
0.51(0.020)MAX
0.318(0.0125)
0.191(0.0075)
A2
45˚ MAX (3X)
A
A1
B1
D2/E2
B
e
E1 E
D1
D
20J, 20-lead, Plastic J-leaded Chip Carrier (PLCC) B
20J
10/04/01
ATF16LV8C
11
20P3 – PDIP
2325 Orchard Parkway
San Jose, CA 95131
TITLE DRAWING NO.
R
REV.
20P3, 20-lead (0.300"/7.62 mm Wide) Plastic Dual
Inline Package (PDIP) D
20P3
1/23/04
PIN
1
E1
A1
B
E
B1
C
L
SEATING PLANE
A
D
e
eB
eC
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTE
A 5.334
A1 0.381
D 24.892 – 26.924 Note 2
E 7.620 8.255
E1 6.096 7.112 Note 2
B 0.356 0.559
B1 1.270 1.551
L 2.921 3.810
C 0.203 0.356
eB 10.922
eC 0.000 1.524
e 2.540 TYP
Notes: 1. This package conforms to JEDEC reference MS-001, Variation AD.
2. Dimensions D and E1 do not include mold Flash or Protrusion.
Mold Flash or Protrusion shall not exceed 0.25 mm (0.010").
ATF16LV8C
12
20S – SOIC
2325 Orchard Parkway
San Jose, CA 95131
TITLE DRAWING NO.
R
REV.
20S, 20-lead, 0.300" Body, Plastic Gull Wing Small Outline (SOIC) B
20S
10/23/03
7.60 (0.2992)
7.40 (0.2914)
0.51(0.020)
0.33(0.013)
10.65 (0.419)
10.00 (0.394)
PIN 1 ID
1.27 (0.050) BSC
13.00 (0.5118)
12.60 (0.4961)
0.30(0.0118)
0.10 (0.0040)
2.65 (0.1043)
2.35 (0.0926)
0º ~ 8º
1.27 (0.050)
0.40 (0.016)
0.32 (0.0125)
0.23 (0.0091)
PIN 1
Dimensions in Millimeters and (Inches).
Controlling dimension: Inches.
JEDEC Standard MS-013
ATF16LV8C
13
20X – TSSOP
2325 Orchard Parkway
San Jose, CA 95131
TITLE DRAWING NO.
R
REV.
20X, (Formerly 20T), 20-lead, 4.4 mm Body Width,
Plastic Thin Shrink Small Outline Package (TSSOP) C
20X
10/23/03
6.60 (.260)
6.40 (.252) 1.20 (0.047) MAX
0.65 (.0256) BSC
0.20 (0.008)
0.09 (0.004)
0.15 (0.006)
0.05 (0.002)
INDEX MARK
6.50 (0.256)
6.25 (0.246)
SEATING
PLANE
4.50 (0.177)
4.30 (0.169)
PIN
1
0.75 (0.030)
0.45 (0.018)
0º ~ 8º
0.30 (0.012)
0.19 (0.007)
Dimensions in Millimeters and (Inches).
Controlling dimension: Millimeters.
JEDEC Standard MO-153 AC
ATF16LV8C
14
Revision History
Revision Level – Revision Date History
H – June 2006 Added Green package options.
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