FEATURES

• Dual voltage monitoring

• Active high and active low reset outputs

• Four standard reset threshold voltages

(4.6/2.9, 4.6/2.6, 2.9/1.6, 2.6/1.6)

—User programmable thresholds

• Lowline Output — Zero delayed POR

• Reset signal valid to VCC = 1V

• System battery switch-over circuitry

• Long battery life with low power consumption

—<50μA max standby current, watchdog on

—<30μA max standby current, watchdog off

• Selectable watchdog timer

—(0.15s, 0.4s, 0.8s, off)

• 64Kbits of EEPROM

• Built-in inadvertent write protection

—Power-up/power-down protection circuitry

—Protect none(0), or all of EEPROM array with

programmable Block Lock™ protection

—In circuit programmable ROM mode