AK681024GI-10LL [ACCUTEK]
SRAM;型号: | AK681024GI-10LL |
厂家: | ACCUTEK MICROCIRCUIT CORPORATION |
描述: | SRAM 静态存储器 |
文件: | 总2页 (文件大小:158K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Accutek
Microcircuit
Corporation
AK681024G
1,048,579 x 8 Bit CMOS
Static Random Access Memory
DESCRIPTION
The Accutek AK681024G is a high density SRAM memory module
organized in 1 Meg X 8 bit words. The assembly consists of four me-
dium speed 128K X 8 SRAMs in thin TSOP packages, plus a CMOS
decoder logic IC and four decoupling capacitor chips, mounted on
the front side and four medium speed 128K x 8 SRAMS in thin
TSOP packages and four decoupling capacitor chips mounted on
the back side of a low-profile printed circuit board. The module con-
figuration is a 36 pin leaded SIP.
1
36
The memory operates as a single asynchronous 1 Meg X 8 SRAM
from a 5V supply, and has common I/O, chip enable, output enable
and write enable functions. With the proper choice of SRAMs, it is
available in three separate low-standby-power configurations, with
access times of 55, 70, 85 or 100 nSEC.
The combination of low power, low profile and high density packag-
ing offered by the AK681024G makes it ideal for use in applications
where board space and available power are limited and extremely
low access times are not required. It is especially useful in VMEbus
designs and in places where very close module-to-module spacing
is dictated.
· Range of access times from 55 to 100 nSEC
· Low, low-low and ultra-low standby power level versions avail-
able
· Single 5 volt power supply - AK681024G
FEATURES
· Single 3.3 volt power supply - AK681024G/3.3
· Operating free air temerature 00C to 700C (Industrial range
· 1,048,576 x 8 bit organization
version of -100C to 850C also available)
· JEDEC Standard 36 pin SIP format
· Common I/O, single OE, CE and WE functions
· Completely static and asynchronous, no clock or timing strobe
required
· Low 0.550 inch maximum seated height and thin profile allow
maximum board density
·
Low
9.0 Watt Max Active
120 µ Watt Max Standby
Low Low
9.0 Watt Max Active
80 µ Watt Standby
PIN NOMENCLATURE
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
PIN #
1
SYMBOL
NC
PIN #
10
11
12
13
14
15
16
17
18
SYMBOL
A4
PIN #
19
20
21
22
23
24
25
26
27
SYMBOL
CE
PIN #
28
29
30
31
32
33
34
35
36
SYMBOL
A7
DQ0 - DQ7
A0 - A19
CE
Data In/Data Out
128K x 8 SRAM
128K x 8 SRAM
128K x 8 SRAM
128K x 8 SRAM
128K x 8 SRAM
128K x 8 SRAM
128K x 8 SRAM
128K x 8 SRAM
Address Inputs
Chip Enable
Write Enable
Output Enable
5v Supply
2
Vcc
WE
DQ2
DQ3
DQ0
A1
Vss
DQ5
A10
A11
A5
A15
A16
A12
A18
A6
A8
3
A9
4
DQ7
DQ4
DQ6
A17
WE
5
OE
6
7
A13
A14
A19
DQ1
Vss
A0
Vcc
8
A2
Vcc
OE
Vss
Ground
9
A3
NC
No Connection
MODULE OPTIONS
Leaded SIP: AK681024G
DECODER
ORDERING INFORMATION
MECHANICAL DIMENSIONS
Inches
PART NUMBER CODING INTERPRETATION
5
1
2
3
4
6
7
8
Position
1
Product
0.550"
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
60
70
80
10
=
=
=
=
60 nS
70 nS
80 nS
12
20
25
=
=
=
=
12 nS
20 nS
25 nS
35 nS
100 nS 35
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.
EXPAMPLES:
AK681024G-70LL
1 Meg x 8, 70 nSEC Low Low Power SRAM Module, SIP Configuration
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
VOICE: 978-465-6200 FAX: 978-462-3396
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.
Email: sales@accutekmicro.com
Internet: www.accutekmicro.com
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