STM817, STM690 Datasheet - STMicroelectronics

STM817, STM690, 5V supervisor

STM690A, STM692A, STM703 STM704, STM802, STM805, STM817/8/9 5 V supervisor with battery switchover

Features

* 5 V operating voltage
* NVRAM supervisor for external LPSRAM
* Chip-enable gating (STM818 only) for external LPSRAM (7 ns max prop delay)
* RST and RST outputs
* 200 ms (typ) trec
* Watchdog timer - 1.6 sec (typ)
* Automatic battery switchover
* Low battery supply c

Applications

* information .
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16 2.10 Using a SuperCap™ as a backup power source .
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17 2.11 Negative-going VCC transients .
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18 2.12 Battery f

STM690_STMicroelectronics.pdf