DESCRIPTION
The Accutek AK5368192W high density memory module is a
CMOS dynamic RAM organized in 8192K x 36 bit words. The mod-
ule consists of sixteen standard 4 Meg x 4 DRAMs and eight 4 Meg
x 1 DRAMs, each in plastic SOJ packages. The assembly has 14
drams mounted on the front side and 10 drams mounted on the
back side of a printed circuit board in a 72 pad leadless SIM configu-
ration.
This configuration allows socket-mounting of large quantities of
memory in applications where high density and ease of inserting ad-
ditional memory are important.
The operation of the AK5368192W is identical to sixteen 4M x 4 plus
eight 4M x 1 Drams. There are four CAS lines and four RAS lines.
On each bank of 4M x 36, independent byte control is accomplished
by four CAS lines. Each separate CAS line controls two 4M x 4
Drams along with a 4M x 1 Dram with data in tied to data out to form
a 9 bit byte. Two banks of 36 bits are controlled by the two pairs of
RAS lines. An eighteen bit data path can be produced by connect-
ing DQ0to DQ18,DQ
1to DQ19, etc. and alternately strobing RAS0
with RAS1and RAS2with RAS3.
FEATURES
·8,388,608 x 36 bit organization
·72 pad Single In-Line Module
·Multiple CAS and RAS lines allow x18 or x36 bit widths
·CAS-before-RAS,RAS-only or hidden refresh
·Power
7.30 Watt Max Active (60nS)
6.68 Watt Max Active (70 nS)
252 mW Max Standby
·Operating free air temperature 0oCto70
oC
·Single 5 Volt Power Supply
·2048 Refresh Cycles, 32 mSEC
·Available in Fast Page Mode and Static Column mode ver-
sions
·Available in leadless (W) or leaded Zip (Z) versions
·Downward compatible with AK5364096W through AK536256W
sizes
EXAMPLES
AK5368192WP-70
8Meg x 36 CMOS Dynamic RAM, SIM, Page Mode, Commercial 70
nSEC Access Time
ADDITIONAL OPTIONS AVAILABLE
·4 Meg x 36 version, drams on one side only
Reference Part No. AK5364096W4096 Refresh Cycles, 64
mSEC available for all module sizes
Accutek
Microcircuit
Corporation
AK5368192W
8,388,608 by 36 Bit CMOS
Dynamic Random Access Memory
PIN NOMENCLATURE
DQ0-DQ
35 Data In/Data Out
A0-A
10, 2K Refresh Address Inputs
A0-A
11, 4K Refresh Address Inputs
CAS0- CAS3Column Address Strobe
RAS0- RAS3Row Address Strobe
WE Write Enable
PD1-PD
4Presence Detect
Vcc 5v Supply
Vss Ground
NC No Connect
MODULE OPTIONS
Leadless SIM: AK5368192W
Leaded ZIP: AK5368192Z
PIN ASSIGNMENT
PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL
1 Vss 19 A10 37 DQ17 55 DQ12
2 DQ0 20 DQ4 38 DQ35 56 DQ30
3 DQ18 21 DQ22 39 VssV 57 DQ13
4 DQ1 22 DQ5 40 CAS0 58 DQ31
5 DQ19 23 DQ23 41 CAS2 59 Vcc
6 DQ2 24 DQ6 42 CAS3 60 DQ32
7 DQ20 25 DQ24 43 CAS1 61 DQ14
8 DQ3 26 DQ7 44 RAS0 62 DQ33
9 DQ21 27 DQ25 45 RAS1 63 DQ15
10 Vcc 28 A7 46 NC 64 DQ34
11 NC 29 A11 47 WE 65 DQ16
12 A0 30 Vcc 48 NC 66 NC
13 A1 31 A8 49 DQ9 67 PD1
14 A2 32 A9 50 DQ27 68 PD2
15 A3 33 RAS3 51 DQ10 69 PD3
16 A4 34 RAS2 52 DQ28 70 PD4
17 A5 35 DQ26 53 DQ11 71 NC
18 A6 36 DQ8 54 DQ29 72 Vss
Presence Detect - 8 Meg x 36 4 Meg x 36
-60 -70 -60 -70
PD1 NC NC Vss Vss
PD2 Vss Vss NC NC
PD3 NC Vss NC Vss
PD4 NC NC NC NC
++
172
FUNCTIONAL DIAGRAM
MECHANICAL DIMENSIONS
ORDER INFORMATION
PART NUMBER CODING INTERPRETATION
Position 12345678
1 Product
AK = Accutek Memory
2 Type
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
3 Organization/Word Width
1 = b y 1 16 = by 16
4 = by 4 32 = by 32
8 = by 8 36 = by 36
9 = by 9
4 Size/Bits Depth
64 = 64K 4096 = 4 MEG
256 = 256K 8192 = 8 MEG
1024 = 1 MEG 16384 = 16 MEG
The numbers and coding on this page do not include all variations avail-
able, but are shown as examples of the most widely used variations.
Contact Accutek if other information is required.
Position 12345678
5 Package Type
G = Single In-Line Package (SIP)
S = Single In-Line Module (SIM)
D = Dual In-Line Package (DIP)
W = .050 inch Pitch Edge Connect
Z = Zig-Zag In-Line Package (ZIP)
6 Special Designation
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
7 Separator
- = Commercial 00Cto+70
0C
M = Military Equivalent Screened
(-550C to +1250C)
I = Industrial Temperature Tested
(-450Cto+85
0C)
X = Burned In
8 Speed (first two significant digits)
DRAMS SRAMS
60 = 60 nS 8 = 8 nS
70 = 70 nS 12 = 12 nS
80 = 80 nS 15 = 15 nS
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
PHONE: 978-465-6200 FAX: 978-462-3396
Email: sales@accutekmicro.com
Internet: www.accutekmicro.com
Accutek reserves the right to make changes in specifications at any time
and without notice. Accutek does not assume any responsibility for the
use of any circuitry described; no circuit patent licenses are implied. Pre-
liminary data sheets contain minimum and maximum limits based upon
design objectives, which are subject to change upon full characterization
over the specific operating conditions.
C
LC
L
C
L
1.250"
MAX
0.330"
MAX
0.425"
0.375" 0.250"
C
L
0.080"
0.125" 0.050"
TYP
4.250"
3.985"
++
172
*
