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24AA64-I/SN

MCHP24AA64-I/SN

Microchip Technology
Same 24-series pin/protocol compatibility but 64-Kbit capacity if you need roughly double the non-volatile space.
NRND10,267 in stock
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Overview

The 24AA64-I/SN is a 64-Kbit I2C serial EEPROM from Microchip Technology, organized as 8K x 8 bits. It operates across a wide voltage range of 1.7V to 5.5V and is designed for reliable non-volatile data storage in low-power embedded systems.

Why Choose This Part

This component features an ultra-low standby current of only 1 microamp and supports a fast 400 kHz I2C clock frequency. Its wide 1.7V to 5.5V supply range makes it compatible with both legacy 5V logic and modern low-voltage 1.8V battery-powered circuits.

Applications

Configuration Storage
Storing user preferences, calibration data, and system settings in consumer or industrial devices.
Lookup Tables
Holding fixed transformation data or conversion tables for microcontrollers with limited internal NVM.
Usage Logging
Tracking system runtime, error logs, or cycle counts over the life of a product.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 64Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 400 kHz
Memory Interface I2C
Voltage - Supply 1.7V ~ 5.5V
Memory Organization 8K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

To integrate this EEPROM, connect the SDA and SCL pins to your microcontroller's I2C bus with appropriate pull-up resistors and configure the hardware address pins (A0, A1, A2). Most standard I2C libraries for Arduino, PIC, or STM32 can interface with this chip using its 8-bit device address.

Also Consider

AT24C64D-SSHM-T MCHPMicrochip Technology - An alternative 64-Kbit I2C EEPROM in the same SOIC-8 footprint with similar electrical characteristics.
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