STM692A 5V Supervisor

The STM690A/692A/703/704/802/805/817/818/819 supervisors are self-contained devices which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external LPSRAM. A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition. When an invalid VCCcondition occurs, the reset output (RST) is forced low (or high in the case of RST). These devices also offer a watchdog timer (except for STM703/704/819) as well as a power-fail comparator (except for STM818) to provide the system with an early warning of impending power failure.

These devices are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package

技术特性
  • 5 V operating voltage
  • NVRAM supervisor for external LPSRAM
  • Chip-enable gating (STM818 only) for external LPSRAM (7 ns max prop delay)
  • RST and RSToutputs
  • 200 ms (typ) trec
  • Watchdog timer - 1.6 sec (typ)
  • Automatic battery switchover
  • Low battery supply current - 0.4 μA (typ)
  • Power-fail comparator (PFI/PFO)
  • Low supply current - 40 μA (typ)
  • Guaranteed RST(RST) assertion down to VCC = 1.0 V
  • Operating temperature: –40 °C to +85 °C (industrial grade)
  • RoHS compliance
    • Lead-free components are compliant with the RoHS directive
功能框图
STM7_8x 功能框图
STM692A 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
STM692AM6F Active 1.2333 1000 SO-8 Tape And Reel   STM692AM6F
STM692AM6E Active 1.4029 1000 SO-8 Tube   STM692AM6E
DATASHEET
描述 版本 大小
STM692A : 5 V supervisor with battery switchover 10 1144KB
APPLICATION NOTES
描述 版本 大小
AN1336: Power-fail comparator for NVRAM supervisory devices 1 59KB
AN1957: Microprocessor supervisor functions 1 247KB