MCHP25AA256
Overview
The 25AA256 is a 256 Kbit serial EEPROM organized as 32K x 8 bits, designed for high-reliability non-volatile storage. It features a high-speed SPI interface capable of 10 MHz clock rates and operates across a wide voltage range of 1.8V to 5.5V. This device is AEC-Q100 qualified, making it suitable for demanding automotive and industrial environments.
Why Choose This Part
The device offers excellent power efficiency with a standby current of only 1 uA and a maximum read current of 6 mA at 10 MHz. It supports a 64-byte page write buffer and self-timed erase/write cycles of 5 ms, providing efficient data management. High reliability is ensured through block write protection and robust AEC-Q100 qualification for extended temperature ranges.
Applications
Key Specifications
Getting Started
To interface with the 25AA256, configure your microcontroller SPI peripheral for Mode 0 or Mode 3. Use the standard 8-bit instruction set (READ, WRITE, WREN) to manage the memory. For prototyping, the 8-lead PDIP version (25AA256P) is ideal for breadboard use, while the SOIC and TSSOP versions are available for production SMT designs.
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