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X4003 - CPU Supervisor

Download the X4003 datasheet PDF. This datasheet also covers the X40 variant, as both devices belong to the same cpu supervisor family and are provided as variant models within a single manufacturer datasheet.

General Description

These devices combine three popular functions, Poweron Reset Control, Watchdog Timer, and Supply Voltage Supervision.

This combination lowers system cost, reduces board space requirements, and increases reliability.

Key Features

  • Selectable watchdog timer.
  • Select 200ms, 600ms, 1.4s, off.
  • Low VCC detection and reset assertion.
  • Five standard reset threshold voltages nominal 4.62V, 4.38V, 2.92V, 2.68V, 1.75V.
  • Adjust low VCC reset threshold voltage using special programming sequence.
  • Reset signal valid to VCC = 1V.
  • Low power CMOS.
  • 12µA typical standby current, watchdog on.
  • 800nA typical standby current watchdog off.
  • 3mA active current.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (X40-03.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number X4003
Manufacturer Xicor
File Size 378.74 KB
Description CPU Supervisor
Datasheet download datasheet X4003 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
X4003 CPU Supervisor Renesas
X4003 CPU Supervisor Intersil Corporation
X40030 Triple Voltage Monitor Intersil Corporation
X40031 Triple Voltage Monitor Intersil Corporation
X40034 Triple Voltage Monitor Intersil Corporation

Other Datasheets by Xicor

Part Number Description
X40010 Dual Voltage Monitor with Integrated CPU Supervisor
X40011 Dual Voltage Monitor with Integrated CPU Supervisor
X40014 Dual Voltage Monitor with Integrated CPU Supervisor
X40015 Dual Voltage Monitor with Integrated CPU Supervisor
X4005 CPU Supervisor

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
X4003/X4005 CPU Supervisor FEATURES • Selectable watchdog timer —Select 200ms, 600ms, 1.4s, off • Low VCC detection and reset assertion —Five standard reset threshold voltages nominal 4.62V, 4.38V, 2.92V, 2.68V, 1.75V —Adjust low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Low power CMOS —12µA typical standby current, watchdog on —800nA typical standby current watchdog off —3mA active current • 400kHz I2C interface • 1.8V to 5.5V power supply operation • Available packages —8-lead SOIC —8-lead MSOP DESCRIPTION These devices combine three popular functions, Poweron Reset Control, Watchdog Timer, and Supply Voltage Supervision. This combination lowers system cost, reduces board space requirements, and increases reliability.