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X40021 Datasheet Dual Voltage Monitor

Manufacturer: Intersil (now Renesas)

Download the X40021 datasheet PDF. This datasheet also includes the X40020 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (X40020_IntersilCorporation.pdf) that lists specifications for multiple related part numbers.

General Description

The X40020 combines power-on reset control, watchdog timer, supply voltage supervision, and secondary supervision, and manual reset, 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/RESET active for a period of time.

Overview

® X40020, X40021 Data Sheet May 17, 2006 FN8112.1 Dual Voltage Monitor with Integrated CPU Supervisor and System Battery.

Key Features

  • Dual voltage detection and reset assertion.
  • Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V).
  • VTRIP2 programmable down to 0.9V.
  • Adjust low voltage reset threshold voltages using special programming sequence.
  • Reset signal valid to VCC = 1V.
  • Monitor two voltages or detect power fail.
  • Battery switch backup.
  • VOUT: 5mA to 50mA from VCC; 250µA from VBATT.
  • Fault detection register.
  • Selectable.

More Datasheets from Intersil (now Renesas)

Part Number Description
X40020 Dual Voltage Monitor
X4003 CPU Supervisor
X40030 Triple Voltage Monitor
X40031 Triple Voltage Monitor
X40034 Triple Voltage Monitor
X40035 Triple Voltage Monitor
X4005 CPU Supervisor
X40410 Dual Voltage Monitor
X40411 Dual Voltage Monitor
X40414 Dual Voltage Monitor