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IS61LV25616-15B PDF预览

IS61LV25616-15B

更新时间: 2024-11-28 22:48:03
品牌 Logo 应用领域
美国芯成 - ISSI /
页数 文件大小 规格书
11页 96K
描述
256K x 16 HIGH SPEED ASYNCHRONOUS CMOS STATIC RAM WITH 3.3V SUPPLY

IS61LV25616-15B 数据手册

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®
IS61LV25616  
256K x 16 HIGH SPEED ASYNCHRONOUS  
CMOS STATIC RAM WITH 3.3V SUPPLY  
ISSI  
AUGUST 2000  
FEATURES  
DESCRIPTION  
The ISSI IS61LV25616 is a high-speed, 4,194,304-bit static  
RAM organized as 262,144 words by 16 bits. It is fabricated  
using ISSI'shigh-performanceCMOStechnology. Thishighly  
reliable process coupled with innovative circuit design tech-  
niques, yields high-performance and low power consumption  
devices.  
• High-speed access time:  
— 7, 8, 10, 12, and 15 ns  
• CMOS low power operation  
• Low stand-by power:  
— Less than 5 mA (typ.) CMOS stand-by  
• TTL compatible interface levels  
• Single 3.3V power supply  
WhenCEisHIGH(deselected),thedeviceassumesastandby  
mode at which the power dissipation can be reduced down  
with CMOS input levels.  
• Fully static operation: no clock or refresh  
required  
Easy memory expansion is provided by using Chip Enable  
and Output Enable inputs, CE and OE. The active LOW Write  
Enable(WE)controlsbothwritingandreadingofthememory.A  
databyteallowsUpperByte(UB)andLowerByte(LB)access.  
• Three state outputs  
• Data control for upper and lower bytes  
• Industrial temperature available  
The IS61LV25616 is packaged in the JEDEC standard  
44-pin 400-mil SOJ, 44-pin TSOP Type II, 44-pin LQFP and  
48-pin Mini BGA (8mm x 10mm).  
FUNCTIONAL BLOCK DIAGRAM  
256K x 16  
MEMORY ARRAY  
A0-A17  
DECODER  
VCC  
GND  
I/O0-I/O7  
Lower Byte  
I/O  
DATA  
COLUMN I/O  
CIRCUIT  
I/O8-I/O15  
Upper Byte  
CE  
OE  
WE  
CONTROL  
CIRCUIT  
UB  
LB  
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any  
errors which may appear in this publication. © Copyright 2000, Integrated Silicon Solution, Inc.  
Integrated Silicon Solution, Inc. — 1-800-379-4774  
1
Rev. B  
09/29/00  

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