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CAT1022 - EEPROM

Download the CAT1022 datasheet PDF. This datasheet also covers the CAT1021 variant, as both devices belong to the same eeprom family and are provided as variant models within a single manufacturer datasheet.

General Description

The CAT1021, CAT1022 and CAT1023 are complete memory and supervisory solutions for microcontroller

based systems.

bit I2C memory and a system power supervisor with brown

out protection are integrated together in low power CMOS technology.

Key Features

  • a 16.
  • byte page. In addition, hardware data protection is provided by a VCC sense circuit that prevents writes to memory whenever VCC falls below the reset threshold or until VCC reaches the reset threshold during power up. Available packages include an surface mount 8.
  • pin SOIC, 8.
  • pin TSSOP, 8.
  • pin TDFN and 8.
  • pin MSOP packages. The TDFN package thickness is 0.8 mm maximum. TDFN footprint options are 3 x 3 mm. Features.
  • Precision Power Supply Vo.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CAT1021_ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
CAT1022 Supervisory Circuits Catalyst Semiconductor
CAT102 Precision/ Adjustable Shunt Regulator (600mV Reference) Catalyst Semiconductor
CAT1021 Supervisory Circuits Catalyst Semiconductor
CAT1023 Supervisory Circuits Catalyst Semiconductor
CAT1024 Supervisory Circuits Catalyst Semiconductor

Other Datasheets by onsemi

Part Number Description
CAT102 Adjustable Shunt Regulator
CAT1021 EEPROM
CAT1023 EEPROM
CAT1024 EEPROM Serial 2k-bit I2C and Manual Reset
CAT1025 EEPROM Serial 2k-bit I2C and Manual Reset

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
CAT1021, CAT1022, CAT1023 Supervisory Circuits with EEPROM Serial 2k-bit I2C Manual Reset and Watchdog Timer www.onsemi.com Description The CAT1021, CAT1022 and CAT1023 are complete memory and supervisory solutions for microcontroller−based systems. A EEPROM Serial 2k−bit I2C memory and a system power supervisor with brown−out protection are integrated together in low power CMOS technology. Memory interface is via a 400 kHz I2C bus. SOIC−8 CASE 751BD TSSOP−8 CASE 948S The CAT1021 and CAT1023 provide a precision VCC sense circuit and two open drain outputs: one (RESET) drives high and the other (RESET) drives low whenever VCC falls below the reset threshold voltage. The CAT1022 has only a RESET output and does not have a Write Protect input.