STMicroelectronics STM705/706/708/813L 监控器

STMicroelectronics STM705/706/708/813L 监控器是自容式设备，提供微处理器监控功能。精密的电压基准和比较器可以监控 V_CC 输入，判断是否出现超出容限。当发生无效 V_CC 情形时，复位输出（RST）强制为低电平（或高电平）。这些器件还提供看门狗定时器（除了 STM707/708）以及电源故障比较器，在即将发生电源故障时给系统提供早期预警。这些器件采用标准 8 引脚 SOCI 封装，或节约空间的 8 引脚 TSSOP 封装。典型应用有计算机、控制器、智能仪表、关键 μP 电源监控、终端、基站、医疗设备、机顶盒等。

The STMicroelectronics STM705/706/708/813L Supervisors are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package. Typical applications include computers, controllers, intelligent instruments, critical μP power monitoring, terminals, base stations, medical equipment, and set-top boxes.

特性

5V operating voltage
Precision V_CC monitor
STM705/813L4.50V ≤ V_RST ≤ 4.75V
STM706/7084.25V ≤ V_RST ≤ 4.50V
RST and RST outputs
200ms (typ) t_rec
Watchdog timer - 1.6s (typ)
Manual reset input (MR)

Power-fail comparator (PFI/PFO)
Low supply current - 40μA (typ)
Guaranteed RST (RST) assertion down to V_CC=1.0V
Operating temperature:
- -40°C to +85°C (industrial grade)
- -40°C to +125°C (automotive grade for the STM706 only)
Lead-free and RoHS compliant