X40620

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
 


Pinout




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.

Applying voltage to VCC activates the power on reset circuit which holds RESET active for a period of time. This allows the power supply and system oscillator to stabilize before the processor can execute code.