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Maxim > 方案 > 传输节点、接入节点、上/下路复用器和数字交叉连接

非易失存储器

数据资料
显示 标题/型号 关键优势
QV  PDF 看门狗时钟，带有非易失RAM控制器
DS1558, DS1558W, DS1558Y

从可选的分离元件到DS155X看门狗时钟模块
QV  PDF Y2K兼容、非易失时钟RAM
DS1747, DS1747P
QV  PDF Y2K兼容、非易失时钟RAM
DS1746, DS1746P
QV  PDF Y2K兼容、非易失时钟RAM
DS1744, DS1744P
QV  PDF Y2K兼容、非易失时钟RAM
DS1743, DS1743P
QV  PDF 4M、非易失、Y2K兼容的时钟RAM
DS1557
QV  PDF 1M、非易失、Y2K兼容的时钟RAM
DS1556, DS1556P
QV  PDF 256k非易失、Y2K兼容的时钟RAM
DS1554
QV  PDF 4096k非易失SRAM，带有电池监视器
DS1350AB, DS1350Y
QV  PDF 1024k非易失SRAM，带有电池监视器
DS1345AB, DS1345Y
QV  PDF 256k非易失SRAM，带有电池监控器
DS1330AB, DS1330Y
QV  PDF 16M非易失SRAM
DS1270AB, DS1270Y
QV  PDF 8M非易失SRAM
DS1265AB, DS1265Y
QV  PDF 128k x 16非易失SRAM
DS1258AB, DS1258Y
QV  PDF 4096k非易失SRAM
DS1250AB, DS1250Y
QV  PDF 2048k非易失SRAM
DS1249AB, DS1249Y
QV  PDF 1024k非易失SRAM
DS1245AB, DS1245Y
QV  PDF 256k非易失SRAM
DS1230AB, DS1230Y
QV  PDF 64k非易失SRAM
DS1225AB, DS1225AD
QV  PDF 16k非易失SRAM
DS1220AB, DS1220AD



Key Specifications:   Memory (EPROM, EEPROM, ROM, NV SRAM)
Part Number Memory Type Memory Size Bus Type Real-Time Clock DIP with Internal Battery PowerCap Package Battery Monitor With GPIO Single Piece Module Supply Voltage (min) (V) Supply Voltage (max) (V)
DS1220AB  NV SRAM 2K x 8 Parallel No Yes No No No No 4.75 5.25
DS1220AD  NV SRAM 2K x 8 Parallel No Yes No No No No 4.5 5.5
DS1225AB  NV SRAM 8K x 8 Parallel No Yes No No No No 4.75 5.25
DS1225AD  NV SRAM 8K x 8 Parallel No Yes No No No No 4.5 5.5
DS1230AB  NV SRAM 32K x 8 Parallel No Yes Yes No No No 4.75 5.25
DS1230Y  NV SRAM 32K x 8 Parallel No Yes Yes No No No 4.5 5.5
DS1245AB  NV SRAM 128K x 8 Parallel No Yes Yes No No No 4.75 5.25
DS1245Y  NV SRAM 128K x 8 Parallel No Yes Yes No No No 4.5 5.5
DS1249AB  NV SRAM 256K x 8 Parallel No Yes No No No No 4.75 5.25
DS1249Y  NV SRAM 256K x 8 Parallel No Yes No No No No 4.5 5.5
DS1250AB  NV SRAM 512K x 8 Parallel No Yes Yes No No No 4.75 5.25
DS1250Y  NV SRAM 512K x 8 Parallel No Yes Yes No No No 4.5 5.5
DS1258AB  NV SRAM 128K x 16 Parallel No Yes No No No No 4.75 5.25
DS1258Y  NV SRAM 128K x 16 Parallel No Yes No No No No 4.5 5.5
DS1265AB  NV SRAM 1M x 8 Parallel No Yes No No No No 4.75 5.25
DS1265Y  NV SRAM 1M x 8 Parallel No Yes No No No No 4.5 5.5
DS1270AB  NV SRAM 2M x 8 Parallel No Yes No No No No 4.75 5.25
DS1270Y  NV SRAM 2M x 8 Parallel No Yes No No No No 4.5 5.5
DS1330AB  NV SRAM 32K x 8 Parallel No No Yes Yes No No 4.75 5.25
DS1330Y  NV SRAM 32K x 8 Parallel No No Yes Yes No No 4.5 5.5
DS1345AB  NV SRAM 128K x 8 Parallel No No Yes Yes No No 4.75 5.25
DS1345Y  NV SRAM 128K x 8 Parallel No No Yes Yes No No 4.5 5.5
DS1350AB  NV SRAM 512K x 8 Parallel No No Yes Yes No No 4.75 5.25
DS1350Y  NV SRAM 512K x 8 Parallel No No Yes Yes No No 4.5 5.5
See All Memory (EPROM, EEPROM, ROM, NV SRAM) (69)

Key Specifications:   Timekeeping & Real-Time Clocks
Part Number Functions Time Format (hh = sec/100) Date Format Interface Supply Voltage (V) Time- keeping Current (typ) (nA) CL, Load Capacitance (pF) Memory Type Memory Size (Bytes) Number of Time of Day Alarms
DS1558 
•NV SRAM Control
•Watchdog Timekeeper
 HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		300 6 None  -  1
DS1554 
•Watchdog Timekeeper
 HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 32K 1
DS1556 
•Watchdog Timekeeper
 HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 128K 1
DS1557 
•Watchdog Timekeeper
 HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 512K 1
DS1743   -  HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 8K 0
DS1744   -  HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 32K 0
DS1746   -  HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 128K 0
DS1747   -  HH:MM:SS YYYY-MM-DD Bytewide 3.3
5 		 -   -  NV SRAM 512K 0
See All Timekeeping & Real-Time Clocks (86)


         


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