EmbeddedRelated.com
    Parts   Memory & Storage  EEPROM    24LCxx / AT24Cxx I2C EEPROM Family    24LC64T    24LC64T-I/OT
24LC64T-I/OT

MCHP24LC64T-I/OT

Microchip Technology
EEPROM Memory IC 64Kbit I2C 400 kHz 900 ns SOT-23-5
Active8,754 in stock
Datasheet Digi-Key Compare Prices

Overview

The 24LC64T-I/OT is a 64Kbit I2C serial EEPROM organized as 8K x 8 bits, designed for low-power non-volatile storage applications. It operates over a wide voltage range of 2.5V to 5.5V and features Schmitt Trigger inputs for improved noise immunity in industrial and automotive environments. The device supports a 400 kHz clock frequency and includes hardware write-protect capability to prevent accidental data overwrites.

Why Choose This Part

This EEPROM offers exceptional durability with over 1 million erase/write cycles and a data retention period exceeding 200 years. Its small SOT-23-5 package saves significant PCB real estate, while its low standby current of only 1 uA makes it ideal for battery-operated devices.

Applications

Configuration Storage
Storing calibration data, user settings, and network configuration parameters in embedded systems.
Data Logging
Recording error logs, usage statistics, or sensor readings in space-constrained IoT devices.
Automotive Electronics
Handling non-volatile memory requirements in vehicle modules requiring AEC-Q100 qualification.
Microcontroller Peripheral
Extending the limited internal EEPROM capacity of small microcontrollers for firmware state recovery.

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 2.5V ~ 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 use this device, connect the SDA and SCL lines to your microcontroller's I2C bus with external pull-up resistors (typically 4.7k ohms). Ensure the WP pin is tied to GND for normal operation or VCC to enable hardware write protection. Implementation is straightforward using standard I2C libraries like the Wire library for Arduino or Microchip's MPLAB Code Configurator (MCC).

Also Consider

AT24C64D-SSHM-T MCHPMicrochip Technology - Offers similar 64Kbit capacity in an 8-lead SOIC package for designs where SOT-23 is too small for manual soldering.

Categories

Memory & Storage > EEPROM