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X4043 - CPU Supervisor

Description

The X4043/45 combines four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package.

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

Features

  • Selectable watchdog timer.
  • Low VCC detection and reset assertion.
  • Five standard reset threshold voltages.
  • Adjust low VCC reset threshold voltage using special programming sequence.
  • Reset signal valid to VCC = 1V.
  • Low power CMOS.

📥 Download Datasheet

Datasheet preview – X4043

Datasheet Details

Part number X4043
Manufacturer Intersil
File Size 396.81 KB
Description CPU Supervisor
Datasheet download datasheet X4043 Datasheet
Additional preview pages of the X4043 datasheet.

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Full PDF Text Transcription

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® X4043, X4045 4k, 512 x 8 Bit Data Sheet September 30, 2005 FN8118.1 CPU Supervisor with 4kbit EEPROM FEATURES • Selectable watchdog timer • Low VCC detection and reset assertion —Five standard reset threshold voltages —Adjust low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Low power CMOS —<20µA max standby current, watchdog on —<1µA standby current, watchdog OFF —3mA active current • 4kbits of EEPROM —16-byte page write mode —Self-timed write cycle —5ms write cycle time (typical) • Built-in inadvertent write protection —Power-up/power-down protection circuitry —Protect 0, 1/4, 1/2, all or 16, 32, 64 or 128 bytes of EEPROM array with Block Lock™ protection • 400kHz 2-wire interface • 2.7V to 5.5V power supply operation www.
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