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CAT1027 - Dual Voltage Supervisory Circuits

Download the CAT1027 datasheet PDF. This datasheet also covers the CAT1026 variant, as both devices belong to the same dual voltage supervisory circuits family and are provided as variant models within a single manufacturer datasheet.

Description

The CAT1026 and CAT1027 are complete memory and supervisory solutions for microcontroller-based systems.

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Memory interface is via a 400kHz I2C bus.

Features

  • Precision VCC Power Supply Voltage Monitor.
  • 5V, 3.3V and 3V systems.
  • Five threshold voltage options Additional voltage monitoring.
  • Externally adjustable down to 1.25V Watchdog timer (CAT1027 only) 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 1,000,000 Program/Erase cycles supply monitor and reset circuit protects memor.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CAT1026_CatalystSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CAT1027
Manufacturer Catalyst Semiconductor
File Size 337.21 KB
Description Dual Voltage Supervisory Circuits
Datasheet download datasheet CAT1027 Datasheet

📁 Similar Datasheet

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Other Datasheets by Catalyst Semiconductor

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

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
CAT1026, CAT1027 Dual Voltage Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM FEATURES Precision VCC Power Supply Voltage Monitor — 5V, 3.3V and 3V systems — Five threshold voltage options Additional voltage monitoring — Externally adjustable down to 1.25V Watchdog timer (CAT1027 only) 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 1,000,000 Program/Erase cycles supply monitor and reset circuit protects memory and systems controllers during power up/down and against brownout conditions. If power supply voltages are out of tolerance reset signals become active preventing the system microcontroller, ASIC, or peripherals from operating.
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