STM690SM6F Datasheet PDF - ST Microelectronics

The STM690SM6F is a 3V Supervisor with battery switchover. The supervisor is self-contained device which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external LPSRAM. A precision voltage reference and comparator monitors the VCC input for an out-of-tolerance condition. When an invalid VCC condition occurs, the reset output (/RST) is forced low (or high in the case of RST). This device also offers a watchdog timer as well as a power-fail comparator to provide the system with an early warning of impending power failure.

● RST or /RST outputs

● NVRAM supervisor for external LPSRAM

● Manual (pushbutton) reset input

● Automatic battery switchover

● Power-fail comparator (PFI/PFO\\)

● Guaranteed /RST assertion down to VCC = 1V

● 1.6s Typical watchdog timer

● 0.4µA Typical low battery supply current

● 40µA Typical low supply current