MICROCHIP 25LC256 256 Kbit SPI Serial EEPROM, DIP-8

The MICROCHIP 25LC256-I/P is a 256 Kbit, high-temperature SPI Serial EEPROM (Electrically Erasable Programmable Read-Only Memory), designed for reliable, non-volatile data storage. Memory is accessed through a simple and efficient Serial Peripheral Interface (SPI) compatible serial bus, requiring only a clock input (SCK), separate data in (SI) and data out (SO) lines, and a Chip Select (CS) input for device control. Communication can be conveniently paused using the hold pin (HOLD), allowing the host microcontroller to service higher-priority interrupts without losing the communication stream.

Crafted with low-power CMOS technology, this EEPROM is engineered for endurance and data integrity. It features both byte and page-level write operations, with self-timed erase and write cycles completing in a maximum of 6ms. Robust data protection is provided through configurable block write protection (allowing you to protect none, 1/4, 1/2, or the entire memory array) and built-in write protection circuitry that safeguards data during power transitions.

Key Features & Performance

• High Endurance: Supports over 1 million erase/write cycles.
• Long-Term Reliability: Offers data retention greater than 200 years.
• Robust Protection: Includes electrostatic discharge (ESD) protection rated over 4000V.
• Sequential Read: Enables efficient continuous data reads for faster operation.
• Industrial Grade: Operates across a wide temperature range from -40°C to 85°C, making it suitable for demanding environments.

Supplied in a standard 8-pin DIP (Dual In-line Package) for through-hole mounting, this component is a proven solution for adding persistent memory to a wide array of electronic designs. Please note: this is an ESD-sensitive device; proper handling precautions should be taken.