MICROCHIP AT24C256C 256Kbit I2C Serial EEPROM, 8-Pin SOIC

The MICROCHIP AT24C256C-SSHL-B is a high-performance 256Kbit serial EEPROM memory chip, engineered for applications demanding low-power consumption and reliable non-volatile data storage. Organised as 32,768 words by 8 bits, it provides ample space for configuration data, parameters, and logs in a compact footprint.

Featuring a fully I²C-compatible 2-wire serial interface, this EEPROM supports bidirectional data transfer and can operate on a shared bus with up to eight devices, simplifying system design. It is optimised for broad voltage operation from 1.7V to 5.5V, making it suitable for both modern low-voltage and legacy 5V systems. Communication is robust, with Schmitt trigger and filtered inputs for excellent noise suppression, supporting clock frequencies up to 400kHz at 1.7V and 1MHz at higher voltages.

Data integrity and protection are key strengths. A dedicated write-protect pin enables hardware-level memory protection, while a 64-byte page write mode allows for efficient data programming, with partial page writes permitted. The self-timed write cycle has a maximum duration of 5ms, and the chip boasts an impressive endurance of 1,000,000 write cycles, ensuring high reliability over the product's lifetime. This halogen-free device is designed for demanding environments, with an operating temperature range from -40°C to 85°C.

Ideal for a wide array of commercial and industrial applications, this serial EEPROM is a versatile and dependable solution for preserving critical data where power efficiency and design flexibility are paramount.