STM804T/S/R 3V Supervisor

The STM690/704/795/802/804/805/806 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 STM704/795/806) as well as a power-fail comparator (except for STM795) 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
  • Precision VCCmonitor
    • T: 3.00 V ≤ VRST≤ 3.15 V
    • S: 2.88 V ≤ VRST≤ 3.00 V
    • R: STM704P: 2.59 V ≤ VRST≤ 2.70 V
  • RST and RSToutputs
  • 200 ms (typ.) trec
  • Watchdog timer - 1.6 s (typ.)
  • Manual reset input (MR)
  • 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
STM70x 功能框图
STM804T/S/R 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
STM804TM6E Active 2.5934 1000 SO-8 Tube   STM804TM6E
STM804TM6F Active 2.5934 1000 SO-8 Tape And Reel   STM804TM6F
STM804SM6F Active 2.5934 1000 SO-8 Tape And Reel   STM804SM6F
STM804SM6E Active 2.5934 1000 SO-8 Tube   STM804SM6E
STM804RM6F Active 2.5934 1000 SO-8 Tape And Reel   STM804RM6F
STM804RM6E Active 2.5934 1000 SO-8 Tube   STM804RM6E
DATASHEET
描述 版本 大小
STM804T/S/R : 3 V supervisor with battery switchover 9 955KB
APPLICATION NOTES
描述 版本 大小
AN1336: Power-fail comparator for NVRAM supervisory devices 1 59KB
AN1957: Microprocessor supervisor functions 1 247KB