The Microchip Technology Inc. 25AA640A/25LC640A (25XX640A) is a 64-Kbit Serial Electrically Erasable PROM (EEPROM) designed for simple integration into SPI-compatible systems. This device offers low-power consumption, a wide voltage range (1.8V-5.5V), and robust features like self-timed erase/write cycles and built-in write protection. It's ideal for applications requiring non-volatile data storage, such as data logging, configuration storage, and code backup in industrial control systems, automotive electronics, and consumer devices. The device's SPI interface simplifies communication, while features like the HOLD pin allow for interrupt handling. It supports industrial (-40°C to +85°C) and extended (-40°C to +125°C) temperature ranges and is Automotive AEC-Q100 qualified.
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You can download the 25AA640ATIMS datasheet or visit the Microchip Technology website for support.
Microchip Technology