AK632512W - Accutek Microcircuit Corporation

AK632512W / AK632512Z
524,288 x 32 Bit CMOS / BiCMOS
Static Random Access Memory
ACCUTEK
MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK632512 SRAM Module consists of fast high performance SRAMs mounted on a low height, 72 pin SIM or ZIP Board.
The module utilizes four 36 pin 512K x 8 SRAMs in 400 mil SOJ
packages and four decoupling capacitors mounted on the front side
of a printed circuit board.
The SRAMs used have common I/O functions and single output enable 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 15 nSEC to
35 nSEC in CMOS or BiCMOS technology.
The Accutek module is designed to have a maximum seated height
of 0.640 inch SIM or 0.555 inch ZIP to provide for the lowest height
off the board. Each conforms to JEDEC-standard sizes and pin-out
configurations. Using four pins for module memory density identification, PD0, PD1, PD2 and PD3 minimizes interchangeability and
design considerations when changing from one module size to the
other in customer applications.
FEATURES
· 524,288 x 32 bit organization
· JEDEC Standard 72 pin SIM or ZIP format
· Common I/O, single OE and WE functions with four separate
chip selects (CE)
· Fast access times from 15 nSEC
· Low height, 0.640 inch SIM or 0.555 inch ZIP maximum
· Power:
720mA Max Active (20 nSEC)
760mA Max Active (15 nSEC)
800mA Max Active (12 nSEC)
200mA Max Standby
CE1 - CE4
Address Inputs
Timing diagrams and basic electrical characteristics are those of the
standard 512K x 8 SRAMs used to construct these modules.
Accutek’s module design allows the flexibility of selecting industry-compatible 512K x 8 SRAMs from several SRAM manufacturers.
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
1
NC
19
A1
37
CE4
55
A5
Chip Enable
2
NC
20
A8
38
CE3
56
A12
DQ1 - DQ32
Data In/Data Out
3
PD2
21
A2
39
A17
57
Vcc
4
PD3
22
A9
40
A16
58
A13
OE
Output Enable
PD0 - PD3
Presence Detect
Vcc
5v Supply
5
Vss
23
DQ13
41
OE
59
A6
6
PD0
24
DQ5
42
Vss
60
DQ21
19
A0 - A18
WE +
* WE
OE +
* OE
DQ1 - DQ8
CE
A0 - A18
7
PD1
25
DQ14
43
DQ25
61
DQ29
8
DQ1
26
DQ6
44
DQ17
62
DQ22
* OE
Ground
9
DQ9
27
DQ15
45
DQ26
63
DQ30
WE
Write Enable
10
DQ2
28
DQ7
46
DQ18
64
DQ23
11
DQ10
29
DQ16
47
DQ27
65
DQ31
12
DQ3
30
DQ8
48
DQ19
66
DQ24
13
DQ11
31
Vss
49
DQ27
67
DQ32
+ DQ1 - DQ8
CE1 +
* WE
Vss
MODULE OPTIONS
A0 - A18 +
*
A0 - A18
ELECTRICAL SPECIFICATIONS
DQ1 - DQ8
+ DQ9 - DQ16
CE
*
PIN NOMENCLATURE
· TTL-compatible inputs and outputs
· Presence Detect, PD0, PD1, PD2 and PD3 for identifying module
density
· Downward compatible with 256K x 32 (AK632256), 128K x 32
(AK632128), 64K x 32 (AK63264) and 32K x 32 (AK63232), 64
pin SIM or ZIP designs
· Upward compatible with 1 Meg x 32 (AK6321024)
· Single 5 volt power supply - AK632512W, AK632512Z
· Single 3.3 volt power supply - AK632512W/3.3,
AK632512Z/3.3
· Operating free air temperature 00 to 700C
CE2 +
A0 - A18
* WE
DQ1 - DQ8
+ DQ17 - DQ24
* OE
14
DQ4
32
WE
50
DQ20
68
Vss
15
DQ12
33
A15
51
A3
69
A18
CE
*
Leadless SIM: AK632512W
CE3 +
Leaded ZIP: AK632512Z
16
Vcc
34
A14
52
A10
70
NC
17
A0
35
CE2
53
A4
71
NC
18
PD0
PD1
A7
=
=
36
Open
Open
CE1
54
PD2
PD3
A11
=
=
72
A0 - A168
* WE
NC
DQ1 - DQ8
* OE
Vss
Open
CE
*
Leaded SIP: AK632512G
CE4 +
+ DQ25 - DQ32
MECHANICAL DIMENSIONS
ORDERING INFORMATION
Inches
PART NUMBER CODING INTERPRETATION
Position
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Product
AK = Accutek Memory
Type
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
Organization/Word Width
1 = by 1 16 = by 16
4 = by 4 32 = by 32
8 = by 8 36 = by 36
9 = by 9
Size/Bits Depth
64 = 64K
4096 = 4 MEG
256 = 256K
8192 = 8 MEG
1024 = 1 MEG 16384 = 16 MEG
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)
Special Designation
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
Separator
- = Commercial 00C to +700C
M = Military Equivalent Screened
(-550C to +1250C)
I = Industrial Temperature Tested
(-450C to +850C)
X = Burned In
Speed (first two significant digits)
DRAMS
SRAMS
50 = 50 nS
8 =
8 nS
60 = 60 nS
10 = 10 nS
70 = 70 nS
12 = 25 nS
80 = 80 nS
15 = 15 nS
The numbers and coding on this page do not include all variations
available but are shown as examples of the most widely used variations. Contact Accutek if other information is required.
EXAMPLES:
AK632512W-15
512K x 32, 15 nSEC SRAM Module, SIM Configuration
AK632512Z-20
512K x 32, 20 nSEC SRAM Module, ZIP Configuration
ACCUTEK
MICROCIRCUIT CORPORATION
5 NEW PASTURE ROAD
NEWBURYPORT, MA 01950-4040
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. Preliminary data sheets contain minimum and maximum limits
based upon design objectives, which are subject to change upon full
characterization over the specific operating conditions.