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CAT1023 - Supervisory Circuits

Download the CAT1023 datasheet PDF. This datasheet also covers the CAT1021 variant, as both devices belong to the same supervisory circuits family and are provided as variant models within a single manufacturer datasheet.

Description

The CAT1021, CAT1022 and CAT1023 are complete memory and supervisory solutions for microcontrollerbased systems.

A 2k-bit serial EEPROM memory and a system power supervisor with brown-out protection are integrated together in low power CMOS technology.

Memory interface is via a 400kHz I2C bus.

Features

  • Precision Power Supply Voltage Monitor.
  • 5V, 3.3V and 3V systems.
  • Five threshold voltage options Watchdog Timer Active High or Low Reset.
  • Valid reset guaranteed at VCC = 1V 400kHz I2C Bus 2.7V to 5.5V Operation Low power CMOS technology 16-Byte Page Write Buffer Built-in inadvertent write protection.
  • WP pin (CAT1021) All supervisors have a 1.6 second watchdog timer circuit that resets a system to a known state if software or a Manual Reset Input hardware glitch.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CAT1021_CatalystSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CAT1023
Manufacturer Catalyst Semiconductor
File Size 303.04 KB
Description Supervisory Circuits
Datasheet download datasheet CAT1023 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
CAT1023 EEPROM ON Semiconductor
CAT102 Adjustable Shunt Regulator ON Semiconductor
CAT1021 EEPROM ON Semiconductor
CAT1022 EEPROM ON Semiconductor
CAT1024 EEPROM Serial 2k-bit I2C and Manual Reset ON Semiconductor

Other Datasheets by Catalyst Semiconductor

Part Number Description
CAT102 Precision/ Adjustable Shunt Regulator (600mV Reference)
CAT1021 Supervisory Circuits
CAT1022 Supervisory Circuits
CAT1024 Supervisory Circuits
CAT1025 Supervisory Circuits

Full PDF Text Transcription

Click to expand full text
CAT1021, CAT1022, CAT1023 Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer FEATURES Precision Power Supply Voltage Monitor — 5V, 3.3V and 3V systems — Five threshold voltage options Watchdog Timer Active High or Low Reset — Valid reset guaranteed at VCC = 1V 400kHz I2C Bus 2.7V to 5.5V Operation Low power CMOS technology 16-Byte Page Write Buffer Built-in inadvertent write protection — WP pin (CAT1021) All supervisors have a 1.6 second watchdog timer circuit that resets a system to a known state if software or a Manual Reset Input hardware glitch halts or “hangs” the system. For the www.DataSheet4U.com CAT1021 and CAT1022, the watchdog timer monitors 100 year data retention the SDA signal.
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