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EDI8F8257C85BPI PDF预览

EDI8F8257C85BPI

更新时间: 2024-01-20 04:00:22
品牌 Logo 应用领域
WEDC 静态存储器内存集成电路
页数 文件大小 规格书
6页 142K
描述
SRAM Module, 256KX8, 85ns, CMOS, SOIC-32

EDI8F8257C85BPI 技术参数

是否Rohs认证: 不符合生命周期:Transferred
Reach Compliance Code:unknown风险等级:5.87
最长访问时间:85 nsI/O 类型:COMMON
JESD-30 代码:R-XDMA-G32JESD-609代码:e0
内存密度:2097152 bit内存集成电路类型:SRAM MODULE
内存宽度:8功能数量:1
端口数量:1端子数量:32
字数:262144 words字数代码:256000
工作模式:ASYNCHRONOUS最高工作温度:85 °C
最低工作温度:-40 °C组织:256KX8
输出特性:3-STATE可输出:YES
封装主体材料:UNSPECIFIED封装代码:SOJ
封装等效代码:SOJ32,.54封装形状:RECTANGULAR
封装形式:MICROELECTRONIC ASSEMBLY并行/串行:PARALLEL
电源:5 V认证状态:Not Qualified
最大待机电流:0.005 A最小待机电流:4.5 V
子类别:SRAMs最大压摆率:0.13 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL

EDI8F8257C85BPI 数据手册

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EDI8F8257C  
256Kx8 Static RAM CMOS, Module  
DESCRIPTION  
FEATURES  
•
•
256Kx8 bit CMOS Static  
The EDI8F8257C is a 2Mb CMOS Static RAM based on two  
128Kx8 Static RAMs mounted on a multi-layered epoxy laminate  
(FR4) substrate.  
Random Access Memory  
• Access Times 70, 85 and 100ns  
• Data Retention Function (LP version)  
• TTL Compatible Inputs and Outputs  
• Fully Static, No Clocks  
Functional equivalence to the monolithic 2Mb Static RAM is  
achieved by utilization of an on-board decoder that interprets the  
higher order address (A17) to select one of the 128Kx8 Static  
RAMs.  
The 32 pin DIP pinout adheres to the JEDEC standard for the two  
megabit device, to ensure compatibility with future monolithics.  
•
•
High Density Packaging  
• 32 Pin SOIC Module, No. 21 (OBSOLETE)  
• 32 Pin DIP Module, No. 184  
Single +5V (±10%) Supply Operation  
The device is available with Low Power and Data Retention  
(EDI8F8257LP).  
All inputs and outputs are TTL compatible and operate from a  
single 5V supply. Fully asynchronous, the EDI8F8257C requires  
no clocks or refreshing for operation.  
PIN CONFIGURATIONS AND BLOCK DIAGRAM  
PIN NAMES  
AØ-A17  
Address Inputs  
Chip Enable  
E
W
Write Enable  
G
Output Enable  
DQØ-DQ7  
VCC  
VSS  
NC  
Common Data Input/Output  
Power (+5V±10%)  
Ground  
No Connection  
Sept. 2001 Rev. 9  
ECO #14605  
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com  
1

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