X4645 supervidor equivalent, (x4643 / x4645) cpu supervidor.
* Selectable watchdog timer
* Low VCC detection and reset assertion —Four standard reset threshold voltages —Adjust low VCC reset threshold voltage using special .
requiring higher precision.
BLOCK DIAGRAM
Watchdog Transition Detector WP Data Register Command Decode & Control Logic .
The X4643/5 combines four popular functions, Poweron Reset Control, Watchdog Timer, Supply Voltage Supervision, and Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability..
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