DS1218:非易失控制器

The DS1218 Nonvolatile Controller Chip supplies circuitry required to render standard CMOS RAM nonvolatile. VCC is monitored using a precise comparator that detects power-fail and inhibits chip-enable holding a write-protect status until power supplies return to nominal levels. The DS1218 switches active power supplies between VCC and a battery source, whichever is greater. The switch has a voltage drop of less than 0.2V.

关键特性
  • Converts CMOS RAM into nonvolatile memories
  • Unconditionally write protects when VCC is out of tolerance
  • Automatically switches to battery when power fail occurs
  • Space saving 8-pin PDIP or 8-pin 150 mil SO Packages
  • Consumes less than 100nA of battery current
DS1218:PIN Assignment
DS1218:PIN Assignment
数据手册DataSheet
语言下载文件备注
英文DS1218.pdfRev 2; 07/2012
关键参数
Part NumberCE Cntrl.Smart Socket w/Int. Batt.Li Batt. MonitorPwr. Fail OutRAMs ControlledVSUPPLY
(V)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
See Notes
DS1218YesNoNoNo15
  • PDIP(N)/8
  • SOIC(N)/8
0 to +70$6.12 @1k
技术资料
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
DS1218停止供货DS1218+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
DS1218+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
DS1218S停止供货DS1218S+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
DS1218S+生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
DS1218S+T&R生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
DS1218S/T&R停止供货DS1218S+T&RSOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
DS1218S/T&R/停止供货SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
DS1218.pdf DS1218
NV SRAM Frequently Asked Questions DS1350Y
DS1218.pdf DS1218