MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK63216Z SRAM Module consists of fast high perfor-
mance SRAMs mounted on a low profile, 64 pin ZIP Board. The
module utilizes four 28 pin 32K x 8 SRAMs in 300 mil SOJ packages
and four decoupling capacitors mounted on the front side of a
printed circuit board. Eliminating Pin 30 makes a 16K x 32 bit mod-
ule using four 32K x 8 SRAMs.
The SRAMs used have common I/O functions and single output en-
able functions. Also, four separate chip select (CE) connections are
used to independently enable the four bytes. 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 to have a maximum seated height
of 0.500 inch. The module conforms to JEDEC-standard sizes and
pin-out configurations. This, along with use of two pins for module
memory density identification, PD
0
and PD
1
, minimizes
interchangeability and design considerations when changing from
one module size to the other in customer applications.
ACCUTEK
AK63216Z
16,384 x 32 Bit CMOS / BiCMOS
Static Random Access Memory
Top View
64-Pin ZIP
1
32
33
64
·
Upward compatible with 32K x 32 (AK63232) 64K x 32
(AK63264), 256K x 32 (AK632256), 512K x 32 (AK632512)
and 1 Meg x 32 (AK6321024)
·
Presence Detect, PD
0
and PD
1
for identifying module density
·
Fast Access Times range from 8 nSEC BiCMOS to 45 nSEC
CMOS
·
TTL compatible inputs and outputs
·
Single 5 volt power supply - AK63216Z
·
Single 3.3 volt power supply - AK63216Z/3.3
·
Operating temperature range in free air, 0
0
C to 70
0
C
FEATURES
·
16,384 x 32 bit organization
·
JEDEC standard 64 pin ZIP format
·
Common I/O, single OE functions with four separate chip
selects (CE)
·
Low height, 0.500 inch maximum seated height
PIN NOMENCLATURE
A
0
- A
13
CE
1
- CE
4
DQ
1
- DQ
32
OE
PD
0
- PD
1
Vcc
Vss
WE
Address Inputs
Chip Enable
Data In/Data Out
Output Enable
Presence Detect
Power Supply
Ground
Write Enable
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
FUNCTIONAL DIAGRAM
CE4
CE3
NC
NC
OE
Vss
DQ25
DQ17
DQ26
DQ18
DQ27
DQ19
DQ28
DQ20
A3
A10
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
A4
A11
A5
A12
Vcc
A13
A6
DQ21
DQ29
CE
1
2
3
4
5
6
7
8
9
10
11
Vss
PD0
PD1
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
DQ4
DQ12
Vcc
A0
A7
A1
A8
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
A2
A9
DQ13
DQ5
DQ14
DQ6
DQ15
DQ7
DQ16
DQ8
Vss
WE
NC
NC
CE2
CE1
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
A0
-
A13
14
AO -
DQ1
A13
OE
WE
OE
WE
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
CE
CE1
AO -
A13
OE
WE
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ16
DQ22
DQ30
DQ23
CE2
AO -
A13
MODULE OPTIONS
Leaded ZIP: AK63216Z
12
13
14
15
16
OE
DQ31
DQ24
DQ32
Vss
WE
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
CE
CE3
AO -
DQ1
A13
DQ2
PD0 = Open
PD1 = Open
OE
WE
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ32
CE
CE4
ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
