ACCUTEK AK632512G 524,288 x 32 bit cmos / bicmos static random access memory Datasheet

AK632512W / AK632512Z
524,288 x 32 Bit CMOS / BiCMOS
Static Random Access Memory
Front View
72-Pin SIM
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
· TTL-compatible inputs and outputs
PIN NOMENCLATURE
A0 - A18
CE1 - CE4
DQ1 - DQ32
Address Inputs
Chip Enable
Data In/Data Out
OE
Output Enable
PD0 - PD3
Presence Detect
Vcc
5v Supply
1
36
37
72
72-Pin ZIP
1
36
72
37
· 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
ELECTRICAL SPECIFICATIONS
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
2
NC
20
A8
38
CE3
56
A12
3
PD2
21
A2
39
A17
57
Vcc
4
PD3
22
A9
40
A16
58
A13
A0 - A18 +
19
A0 - A18
WE +
* WE
OE +
* OE
DQ1 - DQ8
+ DQ1 - DQ8
CE
*
DESCRIPTION
Accutek
Microcircuit
Corporation
CE1 +
5
Vss
23
DQ13
41
OE
59
A6
6
PD0
24
DQ5
42
Vss
60
DQ21
7
PD1
25
DQ14
43
DQ25
61
DQ29
8
DQ1
26
DQ6
44
DQ17
62
DQ22
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
+ DQ9 - DQ16
* OE
CE
*
Vss
A0 - A18
* WE
MODULE OPTIONS
CE2 +
A0 - A18
* WE
DQ1 - DQ8
+ DQ17 - DQ24
* OE
Leaded SIP: AK632512G
Leaded ZIP: AK632512Z
DQ4
32
WE
50
DQ20
68
Vss
15
DQ12
33
A15
51
A3
69
A18
16
Vcc
34
A14
52
A10
70
NC
17
A0
35
CE2
53
A4
71
NC
CE
*
14
CE3 +
A0 - A168
* WE
18
PD0
PD1
A7
=
=
36
Open
Open
CE1
54
PD2
PD3
A11
=
=
72
NC
DQ1 - DQ8
* OE
Vss
Open
CE
*
Leadless SIM: AK632512W
CE4 +
+ DQ25 - DQ32
ORDERING INFORMATION
MECHANICALDIMENSIONS
Inches
PART NUMBER CODING IN TER PRE TA TION
Position
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Product
AK = Accutek Mem ory
Type
4 = Dy namic RAM
5 = CMOS Dy namic RAM
6 = Static RAM
Or ga ni za tion/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
Pack age Type
G = Sin gle In-Line Pack age (SIP)
S = Sin gle In-Line Mod ule (SIM)
D = Dual In-Line Pack age (DIP)
W = .050 inch Pitch Edge Con nect
Z = Zig-Zag In-Line Pack age (ZIP)
Spe cial Des ig na tion
P = Page Mode
N = Nib ble Mode
K = Static Col umn Mode
W = Write Per Bit Mode
V = Video Ram
Separator
- = Com mer cial 0 0C to +700 C
M = Mil i tary Equiv a lent Screened
(-550C to +1250C)
I = In dus trial Tem per a ture Tested
(-450C to +85 0C)
X = Burned In
Speed (first two sig nif i cant dig its)
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 num bers and cod ing on this page do not in clude all vari a tions
avail able but are shown as ex am ples of the most widely used
vari a tions. Con tact Accutek if other in for ma tion is re quired.
EXAMPLES:
AK632512W-15
512K x 32, 15 nSEC SRAM Mod ule, SIM Con fig u ra tion
AK632512Z-20
512K x 32, 20 nSEC SRAM Mod ule, ZIP Con fig u ra tion
ACCUTEK MICRO CIR CUIT COR PO RA TION
BUSI NESS CENTER at NEWBURYPORT
2 NEW PAS TURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
VOICE:
978-465-6200
FAX: 978-462-3396
Email:
[email protected]
Internet:
www.accutekmicro.com
Accutek re serves the right to make changes in spec i fi ca tions at any
time and with out no tice. Accutek does not as sume any re spon si bil ity
for the use of any cir cuitry de scribed; no cir cuit pat ent li censes are
implied. Pre lim i nary data sheets con tain min i mum and max i mum
limits based upon design objectives, which are sub ject to change
upon full char ac ter iza tion over the spe cific op er at ing con di tions.
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