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Datasheet
24AA64T-I/OT – EEPROM Memory IC | 64Kbit, I2C Interface, 400kHz | SOT-23-5 Package
The 24AA64T-I/OT from Microchip Technology Inc. is a highly reliable and low-power 64Kbit (8Kx8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) with an I2C-compatible 2-wire interface. Designed for compact, low-voltage systems, it operates from 1.7V to 5.5V and is ideal for data storage, configuration memory, and low-power applications such as portable electronics, communication systems, and sensor modules. With low active and standby current consumption, 32-byte page write buffer, and hardware write protection, the 24AA64 ensures data integrity and efficient performance in compact devices.
Key Features

Memory Organization: 8Kx8 bits (64Kbit total capacity)

Interface Type: I2C-compatible 2-wire serial interface

Clock Frequency: Supports both 100kHz (Standard Mode) and 400kHz (Fast Mode) operations

Voltage Range: Single-supply operation from 1.7V to 5.5V

Low Power Consumption:

Active current: 1 mA (typical)

Standby current: 1 A (typical)

Page Write Buffer: 32-byte page write capability for faster data throughput

Write Cycle Time: 5 ms (typical) self-timed erase/write

Device Cascading: Supports up to 8 devices on the same I2C bus (512 Kbit address space)

Hardware Write Protection: Dedicated pin protects the memory from accidental writes

Data Retention & Endurance:

Over 1 million write/erase cycles

200-year data retention for long-term reliability

Noise Protection:

Schmitt trigger inputs for noise suppression

Output slope control to eliminate ground bounce

ESD Protection: Greater than 4,000V

Packaging Options: Compact SOT-23-5, PDIP, SOIC, TSSOP, DFN, TDFN, and MSOP

Environmental Compliance:

Pb-Free and RoHS Compliant

Factory Programming Available for custom configurations