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GR3281

产品描述Non-Volatile SRAM, 32KX8, 100ns, CMOS
产品类别存储    存储   
文件大小148KB,共2页
制造商Greenwich Instruments Ltd
下载文档 详细参数 全文预览

GR3281概述

Non-Volatile SRAM, 32KX8, 100ns, CMOS

GR3281规格参数

参数名称属性值
是否无铅含铅
是否Rohs认证不符合
厂商名称Greenwich Instruments Ltd
包装说明DIP, DIP28,.6
Reach Compliance Codeunknown
ECCN代码EAR99
最长访问时间100 ns
其他特性BATTERY BACK-UP
JESD-30 代码R-XDMA-T28
JESD-609代码e0
内存密度262144 bit
内存集成电路类型NON-VOLATILE 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-20 °C
组织32KX8
可输出YES
封装主体材料UNSPECIFIED
封装代码DIP
封装等效代码DIP28,.6
封装形状RECTANGULAR
封装形式MICROELECTRONIC ASSEMBLY
并行/串行PARALLEL
峰值回流温度(摄氏度)NOT SPECIFIED
电源5 V
认证状态Not Qualified
最大待机电流0.04 A
最小待机电流4.5 V
最大压摆率0.04 mA
最大供电电压 (Vsup)5.5 V
最小供电电压 (Vsup)4.75 V
标称供电电压 (Vsup)5 V
表面贴装NO
技术CMOS
温度等级COMMERCIAL
端子面层Tin/Lead (Sn/Pb)
端子形式THROUGH-HOLE
端子节距2.54 mm
端子位置DUAL
处于峰值回流温度下的最长时间NOT SPECIFIED

GR3281文档预览

GR3281
Page 1 of 2
GR3281
......
23rd April 1999
DESCRIPTION
The GR3281 is a 32768 word by 8 bits (32K x 8) non-volatile CMOS Static Ram, fabricated from
advanced silicon gate CMOS technology and a high reliability lithium power cell.The pin-out of the
GR3281 conforms to the JEDEC standards and is fully compatible with normal static RAM.The
power down circuit is fully automatic and is referenced at 4.5 volts. At this point the GR3281 is
write protected by an internal inhibit function for Data Protection and the memory contents are
retained by the lithium power source.Power down is very fast, this being essential for data
integrity, taking a maximum of 15 µS (15 microseconds) to power down from 5 volts to 0 volts.
This is much faster than system power failure conditions. Therefore there are no special conditions
required when installing the GR3281.The GR3281 can, without external power, retain data almost
indefinitely. The limiting factor will be the shelf life of the lithium cell, which is typically ten years.
It is possible that this figure may be extended in view of the extremely light duty imposed upon the
cell.
TECHNICAL DATA
http://www.greenwichinst.com/gr3281.html
18/05/00
GR3281
Page 2 of 2
APPLICATION
When powered down, the GR3281 is transportable and data can be moved from system to system,
this makes it ideal for program development, data collection in data loggers, program changes in
process control, automation and robotics and user definable lookup tables, etc.
Additional information available through our technical sevices department.
-
http://www.greenwichinst.com/gr3281.html
18/05/00
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