EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    24LC08B-I/SN
24LC08B-I/SN

MCHP24LC08B-I/SN

Microchip Technology
Legacy 8K I2C EEPROM from the same family, available in common SOIC-8 package and often a drop-in replacement for AT24C08 designs.
NRND4,505 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The 24LC08B-I/SN is an 8Kbit I2C serial EEPROM designed for low-power applications with a wide operating voltage range of 2.5V to 5.5V. Organized as four blocks of 256 x 8-bit memory, it features a 16-byte page write buffer and hardware write-protect functionality. This legacy-compatible component is a reliable solution for non-volatile data storage in industrial and consumer electronics.

Why Choose This Part

This EEPROM offers high reliability with over 1 million erase/write cycles and data retention exceeding 200 years. It features Schmitt Trigger inputs for noise suppression and output slope control to minimize ground bounce, making it robust for use in electrically noisy environments.

Applications

Configuration Storage
Storing calibration constants, user settings, and device ID information that must persist through power cycles.
Parameter Logging
Recording small batches of event logs or operational metrics in systems with low-frequency update requirements.
Hardware Configuration
Acting as a lookup table for system boot parameters or interface settings in micro-controller based designs.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 8Kbit
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 2.5V ~ 5.5V
Memory Organization 256 x 8 x 4
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

To interface with the 24LC08B-I/SN, connect the SCL and SDA lines to a microcontroller I2C peripheral with appropriate pull-up resistors. Ensure the WP (Write-Protect) pin is tied to VSS for normal write operations or VDD to protect the entire memory array. Most standard I2C libraries for PIC, AVR, or ARM microcontrollers can communicate with this device using the standard 7-bit addressing scheme.

Also Consider

AT24C08D-SSHM-T MCHPMicrochip Technology - A high-performance alternative featuring a wider voltage range down to 1.7V for ultra-low power designs.
M24C08-WMN6P STMicroelectronics - A compatible 8Kbit I2C EEPROM available in the same SOIC-8 footprint with similar 400kHz clock speeds.
CAT24C08WI-GT3 ONonsemi - A cost-effective alternative for general purpose 8Kbit non-volatile storage in a standard SOIC package.
The 2026 Embedded Online Conference