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X40620 Datasheet - Xicor

X40620_XicorInc..pdf

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Datasheet Details

Part number:

X40620

Manufacturer:

Xicor

File Size:

350.58 KB

Description:

Dual voltage cpu supervisor with 64k serial eeprom.

X40620, Dual Voltage CPU Supervisor with 64K Serial EEPROM

The X40620 combines several functions into one device.

The first is a dual voltage monitoring, power-on reset control, watchdog timer and 64Kbit serial BLOCK DIAGRAM WP Write Control Logic HV Generation Timing and Control Watchdog Timer Reset Reset & Watchdog Timebase Power on and Low Voltage Reset

64K X40620 Dual Voltage CPU Supervisor with 64K Serial EEPROM 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.

Low VCC detection circuitry protects the user’s system from low voltage conditions, resetting the

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

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