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24LC1025-I/SN

MCHP24LC1025-I/SN

Microchip Technology
EEPROM Memory IC 1Mbit I2C 400 kHz 900 ns 8-SOIC
Active3,079 in stock

Overview

The 24LC1025-I/SN is a high-density 1Mbit Serial EEPROM from Microchip Technology, organized as 128K x 8-bit. It utilizes an I2C-compatible two-wire serial interface and operates across a wide voltage range of 2.5V to 5.5V. This non-volatile memory is designed for applications requiring high endurance and long-term data retention in a compact 8-pin SOIC package.

Why Choose This Part

The device features high reliability with over 1 million erase/write cycles and data retention exceeding 200 years. It offers efficient writing through a 128-byte page buffer and a hardware write-protect pin for data security. Its low power consumption, with a standby current of only 5 microamps, makes it suitable for battery-powered designs.

Applications

Configuration Storage
Storing device calibration constants and system configuration parameters that must persist through power cycles.
Data Logging
Recording sensor telemetry or event logs in industrial systems where 1Mbit of capacity is sufficient for periodic updates.
User Preference Storage
Retaining user settings and interface states in consumer electronics or smart home devices.
Firmware Backup
Holding small secondary bootloader images or critical lookup tables for embedded microcontrollers.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 1Mbit
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 128K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

To interface with this EEPROM, connect the SDA and SCL pins to your microcontroller I2C bus with appropriate pull-up resistors. Ensure the A0 and A1 address pins are tied to VSS or VCC to set the device address, allowing up to four devices on a single bus. Use standard I2C libraries to perform page writes (up to 128 bytes) or random reads, keeping in mind the 5ms maximum write cycle time.