AK632512G-15 [ACCUTEK]
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| 型号： | AK632512G-15 |
| 厂家： | 
ACCUTEK MICROCIRCUIT CORPORATION |
| 描述： | 暂无描述 |
| 文件： | 总2页 (文件大小：95K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Accutek
Microcircuit
Corporation
AK632512W / AK632512Z
524,288 x 32 Bit CMOS / BiCMOS
Static Random Access Memory
DESCRIPTION
Front View
72-Pin SIM
The Accutek AK632512 SRAM Module consists of fast high perfor-
mance 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.
37
72
1
36
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 15 nSEC to
35 nSEC in CMOS or BiCMOS technology.
72-Pin ZIP
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 identifi-
cation, PD0, PD1, PD2 and PD3 minimizes interchangeability and
design considerations when changing from one module size to the
other in customer applications.
1
36
37
72
· 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
FEATURES
· 524,288 x 32 bit organization
· Upward compatible with 1 Meg x 32 (AK6321024)
· TTL-compatible inputs and outputs
· JEDEC Standard 72 pin SIM or ZIP format
· Common I/O, single OE and WE functions with four separate
chip selects (CE)
· Single +5 Volt (æ10%) power supply
· Operating free air temperature 00 to 700C
· Fast access times from 15 nSEC
· Low height, 0.640 inch SIM or 0.555 inch ZIP maximum
ELECTRICAL SPECIFICATIONS
· Power:
720mA Max Active (20 nSEC)
760mA Max Active (15 nSEC)
800mA Max Active (12 nSEC)
200mA Max Standby
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 indus-
try-compatible 512K x 8 SRAMs from several SRAM manufacturers.
PIN NOMENCLATURE
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
PIN #
1
SYMBOL
NC
PIN #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
SYMBOL
A1
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
CE4
CE3
A17
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
A5
A0 - A18
WE
+
+
A0 - A18
WE
A0 - A18
CE1 - CE4
DQ1 - DQ32
OE
Address Inputs
19
*
*
+
+
+
+
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
Chip Enable
Data In/Data Out
Output Enable
Presence Detect
5v Supply
2
NC
A8
A12
OE
+
+
OE
3
PD2
PD3
Vss
A2
Vcc
CE
4
A9
A16
A13
CE1
5
DQ13
DQ5
DQ14
DQ6
DQ15
DQ7
DQ16
DQ8
Vss
OE
A6
A0 - A18
WE
6
PD0
PD1
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
DQ4
DQ12
Vcc
Vss
DQ21
DQ29
DQ22
DQ30
DQ23
DQ31
DQ24
DQ32
Vss
PD0 - PD3
Vcc
*
*
7
DQ25
DQ17
DQ26
DQ18
DQ27
DQ19
DQ27
DQ20
A3
DQ9 - DQ16
DQ17 - DQ24
DQ25 - DQ32
8
OE
Vss
Ground
9
CE
CE2
CE3
CE4
+
+
+
10
11
12
13
14
15
16
17
18
WE
Write Enable
A0 - A18
WE
*
*
MODULE OPTIONS
OE
WE
CE
Leadless SIM: AK632512W
Leaded SIP: AK632512G
Leaded ZIP: AK632512Z
A15
A14
CE2
CE1
A18
A10
NC
A0 - A168
WE
A0
A4
NC
*
*
A7
A11
NC
DQ1 - DQ8
OE
PD0
PD1
=
=
Open
Open
PD2
PD3
=
=
Vss
Open
CE
ORDERING INFORMATION
MECHANICAL DIMENSIONS
Inches
PART NUMBER CODING INTERPRETATION
5
1
2
3
4
6
7
8
Position
Top View ZIP
1
Product
AK
= Accutek Memory
2
Type
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
3
Organization/Word Width
1 = by 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
8192 = 8 MEG
1024 = 1 MEG 16384 = 16 MEG
256 = 256K
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 00C to +700C
M = Military Equivalent Screened
(-550C to +1250C)
I
= Industrial Temperature Tested
(-450C to +850C)
X = Burned In
8
Speed (first two significant digits)
SRAMS
DRAMS
50
60
70
80
=
=
=
=
50 nS
60 nS
70 nS
80 nS
8
10
12
15
=
=
=
=
8 nS
10 nS
25 nS
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 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.
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
978-465-6200
VOICE:
Email:
Internet:
FAX: 978-462-3396
sales@accutekmicro.com
www.accutekmicro.com
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