X4043 Datasheet (Intersil Corporation)

X4043, CPU Supervisor

The X4043/45 combines four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package.

This combination lowers system cost, reduces board space requirements, and increases reliability.

Applying power to the device

X4043 Features

* Selectable watchdog timer

* Low VCC detection and reset assertion

* Five standard reset threshold voltages

* Adjust low VCC reset threshold voltage using special programming sequence

* Reset signal valid to VCC = 1V

* Low power CMOS