STM690A, STM692A, STM703 STM704, STM802, STM805, S.
STMicroelectronics
STM819 - 5V supervisor
STM690A, STM692A, STM703 STM704, STM802, STM805, STM817/8/9 5 V supervisor with battery switchover Features ■ 5 V operating voltage ■ NVRAM superviso.