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CAT24C32WI-GT3

CAT24C32WI-GT3

Catalyst Semiconductor (now part of Microchip)
Another 32-Kbit I2C EEPROM option that targets standard low-cost serial memory applications with comparable features and supply-voltage ranges.
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Overview

The CAT24C32WI-GT3 is a 32-Kbit serial EEPROM organized internally as 4,096 words of 8 bits each. It utilizes an I2C-compatible interface and operates over a wide voltage range from 1.7V to 5.5V, making it suitable for both low-power battery-operated devices and standard 5V industrial systems.

Why Choose This Part

This device features a low-power CMOS design and high reliability with a standard SOIC-8 package. It supports a wide operating temperature range from -40C to +85C and is compatible with standard 100 kHz, 400 kHz, and 1 MHz I2C bus speeds.

Applications

Parameter Storage
Retaining calibration data, user settings, and device configuration parameters during power cycles.
Lookup Tables
Storing static conversion data or character maps for small embedded displays and sensor linearization.
Identification Memory
Holding serial numbers, MAC addresses, or revision codes for hardware identification and asset tracking.

Key Specifications

Technology EEPROM
Access Time 400 ns
Memory Size 32Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 1 MHz
Memory Interface I2C
Voltage - Supply 1.7V ~ 5.5V
Memory Organization 4K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

Connect the SDA and SCL pins to your microcontroller's I2C bus with appropriate pull-up resistors. Set the hardware address pins (A0, A1, A2) to define the device address on the bus and use standard I2C libraries to perform byte or page writes.

Also Consider

24LC32A-I/SN MCHPMicrochip Technology - A widely available alternative with similar 32-Kbit density and I2C interface in an SOIC-8 package.
AT24C32D-SSHM-T MCHPMicrochip Technology - Offers an alternative 32-Kbit serial EEPROM option from the Atmel legacy product line.
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