MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK61664 SRAM Module consists of fast high perfor-
mance SRAMs mounted on a low profile 40 pin ZIP PCB. The mod-
ule utilizes two 28 pin 64K x 4 SRAMs in 300 mil SOJ packages and
two decoupling capacitor chips mounted on each side of a printed
circuit board.
The SRAMs are interconnected on the module to have common I/O
functions, single output enable functions and common chip select.
The modules can be supplied in a variety of access time values from
8 nSEC to 45 nSEC in CMOS or BiCMOS technology.
The Accutek module is designed for the lowest height off the board,
consistent with the availability of commonly available SRAM SOJ
package configurations.
1
40
ACCUTEK
AK61664Z
16,384 x 16 Bit CMOS/BiCMOS
Static Random Access Memory
Front View
40-Pin ZIP
FEATURES
·
16,384 x 32 SRAM module in high density configuration
·
40 pin ZIP format
·
Common I/O, single OE functions and common chip select CE
Function
·
Low height 0.500 inch ZIP maximum
·
Fast Access Times range from 12 nSEC to 45 nSEC, CMOS or
BiCMOS
·
TTL compatible inputs and outputs
·
Single 5 volt power supply - AK61664Z
·
Single 3.3 volt power supply - AK61664Z/3.3
·
Operating temperature range in free air, 0
0
C to 70
0
C
·
Power (Typical)
CMOS
3.2 Watt Active
1.2 Watt Standby
BiCMOS
4.8 Watt Active
1.3 Watt Standby
PIN NOMENCLATURE
A
0
- A
15
WE
OE
CE
DQ
1
- DQ
16
Vcc
Vss
NC
Address Inputs
Write Enable
Output Enable
Chip Select
Data In/Data Out
5v Supply
Ground
No Connect
PIN ASSIGNMENT
PIN #
1
2
3
4
5
6
7
8
9
10
11
SYMBOL
DQ
16
Vss
DQ
15
DQ
1
DQ
14
DQ
2
DQ
13
DQ
3
Vss
DQ
4
A
15
A
0
A
14
A
1
A
13
A
2
A
12
A
3
Vcc
Vss
PIN #
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SYMBOL
A
11
A
4
A
10
A
5
A
9
A
6
A
8
A
7
DQ
12
DQ
5
DQ
11
DQ
6
Vss
DQ
7
DQ
10
DQ
8
DQ
9
OE
CE
WE
FUNCTIONAL DIAGRAM
MODULE OPTIONS
Leaded ZIP: AK61664Z
Single In-Line Package
12
13
14
15
16
17
18
19
20
ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
