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AK681024GI-85LL PDF预览

AK681024GI-85LL

更新时间: 2024-09-19 03:30:31
品牌 Logo 应用领域
ACCUTEK 静态存储器
页数 文件大小 规格书
2页 158K
描述
SRAM

AK681024GI-85LL 技术参数

生命周期:Contact Manufacturer包装说明:,
Reach Compliance Code:compliant风险等级:5.84

AK681024GI-85LL 数据手册

 浏览型号AK681024GI-85LL的Datasheet PDF文件第2页 
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  

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