ST’s microprocessor supervisors are more sophisticated devices that can include watchdog and early power-fail warnings (power-fail in/power-fail out (PFI/PFO)), push-button reset functions and battery monitoring.
Microprocessor supervisors with a switchover function preserve SRAM data in the absence of system power by automatically switching to batter backup when power fails. A chip-enable gate automatically write-protects the SRAM when the Vcc begins to fall.
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STM6825
Reset + Manual Reset
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STM6824
Reset + Watchdog
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STM6823
Reset + Watchdog
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STM6822
Reset + Watchdog
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STM703
5V Supervisor
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STM704
5V Supervisor
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STM813L
5V Supervisor
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STM706P
3V Supervisor
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STM705
5V Supervisor
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STM706
5V Supervisor
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STM690A
5V Supervisor
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STM819L/M
5V Supervisor
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STM818L/M
5V Supervisor
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M40SZ100W
3 V NVRAM supervisor for LPSRAM
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STM692A
5V Supervisor
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STM6821
Reset + Watchdog
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STM6322
Reset + Manual Reset
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STM6321
Reset + Watchdog
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STM805T/S/R
3V Supervisor
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STM805L
5V Supervisor
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STM817L/M
5V Supervisor
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STM806T/S/R
3V Supervisor
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STM802L/M
5V Supervisor
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STM795T/S/R
3V Supervisor
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STM804T/S/R
3V Supervisor
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STM802T/S/R
3V Supervisor
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STM708T/S/R
3V Supervisor
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TSM104W
Quad Operational Amplifier and Voltage Reference
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STM690T/S/R
3V Supervisor
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STM706T/S/R
3V Supervisor
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TSM102
Dual Op-Amp + Dual Comparator + VRef (Bipolar), Adjustable
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STM704T/S/R
3V Supervisor
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STM707
5V Supervisor
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STM708
5V Supervisor
