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CAT1021 - EEPROM

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.

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.

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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.

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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.
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