Description
The X40420/21 combines power-on reset control, watchdog timer, supply voltage supervision, and secondary supervision, manual reset, and Block Lock™ protect serial EEPROM in one package.
Features
- Dual voltage detection and reset assertion.
- Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V).
- VTRIP2 Programmable down to 0.9V.
- Adjust low voltage reset threshold voltages using special programming sequence.
- Reset signal valid to VCC = 1V.
- Monitor two voltages or detect power fail.
- Battery Switch Backup.
- VOUT: 5mA to 50mA from VCC; or 250µA from VBATT.
- Fault detection register.
- Selectab.