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UPD43257BGU-70L-A PDF预览

UPD43257BGU-70L-A

更新时间: 2024-11-27 04:48:07
品牌 Logo 应用领域
日电电子 - NEC 存储内存集成电路静态存储器光电二极管ISM频段
页数 文件大小 规格书
24页 198K
描述
MOS INTEGRATED CIRCUIT 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT

UPD43257BGU-70L-A 技术参数

是否Rohs认证:符合生命周期:Transferred
包装说明:0.450 INCH, PLASTIC, SOP-28Reach Compliance Code:compliant
风险等级:5.78Is Samacsys:N
最长访问时间:70 nsJESD-30 代码:R-PDSO-G28
JESD-609代码:e3/e6内存密度:262144 bit
内存集成电路类型:STANDARD SRAM内存宽度:8
功能数量:1端口数量:1
端子数量:28字数:32768 words
字数代码:32000工作模式:ASYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:32KX8输出特性:3-STATE
可输出:NO封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE并行/串行:PARALLEL
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:3 mm最小待机电流:2 V
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:COMMERCIAL
端子面层:MATTE TIN/TIN BISMUTH端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:8.4 mm
Base Number Matches:1

UPD43257BGU-70L-A 数据手册

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DATA SHEET  
MOS INTEGRATED CIRCUIT  
μPD43257B  
256K-BIT CMOS STATIC RAM  
32K-WORD BY 8-BIT  
Description  
The μPD43257B is a high speed, low power, and 262,144 bits (32,768 words by 8 bits) CMOS static RAM.  
Battery backup is available. And the μPD43257B has two chip enable pins (/CE1, CE2) to extend the capacity.  
The μPD43257B is packed in 28-pin PLASTIC DIP and 28-pin PLASTIC SOP.  
Features  
32,768 words by 8 bits organization  
Fast access time: 70, 85 ns (MAX.)  
Low VCC data retention: 2.0 V (MIN.)  
Two Chip Enable inputs: /CE1, CE2  
Part number  
Access time  
ns (MAX.)  
Operating supply Operating ambient  
Supply current  
At standby  
voltage  
V
temperature  
°C  
At operating  
mA (MAX.)  
At data retention  
μA (MAX.)  
μA (MAX.) Note  
μPD43257B-xxL  
μPD43257B-xxLL  
70, 85  
4.5 to 5.5  
0 to 70  
45  
45  
50  
15  
3
2
Note TA 40 °C, VCC = 3.0 V  
The information in this document is subject to change without notice. Before using this document, please  
confirm that this is the latest version.  
Not all products and/or types are available in every country. Please check with an NEC Electronics  
sales representative for availability and additional information.  
Document No. M10693EJ9V0DS00 (9th edition)  
1992  
Date Published June 2006 NS CP (K)  
Printed in Japan  

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