X4643
Description
The X4643/5 bines four popular functions, Poweron Reset Control, Watchdog Timer, Supply Voltage Supervision, and Serial EEPROM Memory in one package.
Key Features
- Selectable watchdog timer
- Low power CMOS —<20µA max standby current, watchdog on —<1µA standby current, watchdog off —3mA active current
- 64Kbits of EEPROM —64-byte page write mode —Self-timed write cycle —5ms write cycle time (typical)
- Built-in inadvertent write protection —Power-up/power-down protection circuitry
- 400kHz 2-wire interface
- 2.7V to 5.5V power supply operation
- Available packages —8-lead SOIC —8-lead TSSOP
