DESCRIPTION
The X40620 combines several functions into one device. The first is a dual voltage monitoring, power-on reset control, watchdog timer and 64Kbit serial EEPROM memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.
FEATURES
• Dual Voltage Detection and Reset Assertion
—Three standard reset threshold settings. (3.1V/
2.6V, 3.1V/1.7V, 2.9V/2.3V)
—Adjust low voltage reset threshold voltages
using special programming sequence
—RESET signal valid down to VCC=1V
• Watchdog Timer (150ms)
• Power On Reset (150ms)
• Low Power CMOS
—10µA typical standby current, watchdog on
—400µA typical standby current, watchdog off
• 64kbit 2-Wire Serial EEPROM
—1MHz serial interface speed
—64-byte page write mode
—Self-timed write cycle
—5ms write cycle time (typical)
• 2.5 to 3.7V Power Supply Operation
• 8-Lead TSSOP package