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
