MCHP24LC256
Overview
The 24LC256 is a 256-Kbit (32,768 x 8) I2C serial EEPROM designed for reliable non-volatile data storage. It operates over a wide voltage range of 2.5V to 5.5V and features a 64-byte page write buffer to optimize throughput. With a high endurance of over one million erase/write cycles and 200-year data retention, it is a staple for long-term configuration storage.
Why Choose This Part
The 24LC256 is highly cascadable, allowing up to eight devices on the same I2C bus for expanded memory capacity. It includes hardware write-protect for data security and Schmitt trigger inputs to provide robust noise suppression in industrial environments. The device supports clock frequencies up to 1 MHz and features a fast maximum page write time of 5 ms.
Applications
Key Specifications
Getting Started
Interfacing involves connecting the SDA and SCL lines to a microcontroller I2C peripheral with appropriate pull-up resistors. Address pins A0, A1, and A2 should be tied to VSS or VCC to set the device address. Engineers can use standard I2C libraries such as the Wire library for Arduino or Microchip's MCC for PIC microcontrollers to perform byte or page writes.
