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DS3803 PDF预览

DS3803

更新时间: 2024-11-22 21:54:11
品牌 Logo 应用领域
达拉斯 - DALLAS 静态存储器
页数 文件大小 规格书
10页 233K
描述
1024k Flexible NV SRAM SIMM

DS3803 技术参数

生命周期:Transferred包装说明:SIMM-72
Reach Compliance Code:unknown风险等级:5.8
最长访问时间:70 ns其他特性:USER CONFIGURABLE AS 64K X 16 OR 128K X 8
JESD-30 代码:R-XSMA-N72内存密度:1048576 bit
内存集成电路类型:NON-VOLATILE SRAM MODULE内存宽度:32
功能数量:1端口数量:1
端子数量:72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:32KX32输出特性:3-STATE
可输出:YES封装主体材料:UNSPECIFIED
封装代码:SIMM封装等效代码:SSIM72
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子类别:SRAMs
最大压摆率:0.3 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:NO技术:MOS
温度等级:COMMERCIAL端子形式:NO LEAD
端子节距:1.27 mm端子位置:SINGLE
Base Number Matches:1

DS3803 数据手册

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DS3803  
1024k Flexible NV SRAM SIMM  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Flexibly organized as 32k x 32, 64k x 16 or  
128k x 8bits  
10 years minimum data retention in the  
absence of external power  
Nonvolatile circuitry transparent to and  
independent from host system  
Automatic write protection circuitry  
safeguards against data loss  
Separate control and data signals for each  
SRAM allow byte, word or doubleword  
access  
Fast access time of 70 ns  
Full VCC ± 10% operating range  
Employs popular JEDEC standard 72-position  
SIMM connector  
Extremely thin design built using TSOP-  
package IC components  
DS3803 72-Pin SIMM  
PIN DESCRIPTION  
A0 - A14  
- Address Inputs  
D0A - D7A - Data Inputs/Outputs, Byte A  
D0B - D7B - Data Inputs/Outputs, Byte B  
D0C - D7C - Data Inputs/Outputs, Byte C  
D0D - D7D - Data Inputs/Outputs, Byte D  
-
- Chip Enable Inputs  
- Write Enable Inputs  
- Output Enable Inputs  
- +5V Power Supply  
- Ground  
CEA  
CED  
-
WEA WED  
-
OEA  
VCC  
GND  
NC  
OED  
- No Connect  
DESCRIPTION  
The DS3803 is a self-contained, 1,048,576-bit, nonvolatile static RAM which can be flexibly organized  
as 32k x 32, 64k x 16 or 128k x 8. Built using four 32k x 8 SRAMs, four nonvolatile control ICs and four  
lithium batteries, this nonvolatile memory contains all necessary control circuitry and lithium energy  
sources to maintain data integrity in the absence of power for more than 10 years. The DS3803 employs  
the popular JEDEC standard 72-position SIMM connection scheme and requires no additional circuitry.  
1 of 10  
112299  

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