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24AA64T-I/OT

MCHP24AA64T-I/OT

Microchip Technology
EEPROM Memory IC 64Kbit I2C 400 kHz 900 ns SOT-23-5
Active7,964 in stock
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Overview

The 24AA64T-I/OT is a 64Kbit I2C serial EEPROM designed for low-power applications, operating across a wide voltage range of 1.7V to 5.5V. It is organized as 8192 bytes of 8 bits each and features a compact SOT-23-5 package for space-constrained designs. With a standby current of only 1uA, it is ideal for battery-operated devices requiring non-volatile storage.

Why Choose This Part

The part offers excellent power efficiency with a 3mA active current and 1uA standby current. Its wide operating voltage of 1.7V to 5.5V ensures compatibility with both legacy 5V systems and modern low-voltage MCUs. The SOT-23-5 package provides a significant footprint reduction compared to traditional SOIC-8 alternatives.

Applications

Configuration Storage
Storing user preferences, calibration data, and network settings in consumer and industrial devices.
Data Logging
Recording periodic sensor readings or system event logs in low-speed applications.
Identification Memory
Storing serial numbers, MAC addresses, and revision data for hardware identification.
Battery-Powered Wearables
Utilizing the 1uA standby current to preserve battery life in portable electronics.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 64Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
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 SOT-23-5
Write Cycle Time - Word, Page 5ms

Getting Started

To interface with this EEPROM, connect the SCL and SDA lines to your microcontroller's I2C bus with appropriate pull-up resistors. Ensure the bus speed does not exceed the 400 kHz clock frequency limit. Microchip's MPLAB X IDE and MCC (Microchip Code Configurator) provide libraries to quickly implement standard I2C read and write operations for this device.

24AA64T-I/ Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
24AA64T-I/OT (this part) SC-74A, SOT-753 7,964
24AA64T-I/SN SOIC-8 11,186
24AA64T-I/ST TSSOP-8 629

Also Consider

24LC64T-I/OT MCHPMicrochip Technology - Higher voltage range (2.5V to 5.5V) but optimized for higher speed operation in standard logic environments.