EEPROM Memory IC: Microchip 25AA640AT-I/SN 64K SPI Bus Serial EEPROM

In the realm of non-volatile memory solutions, Serial EEPROMs play a pivotal role in storing critical data in embedded systems. The Microchip 25AA640AT-I/SN stands out as a highly reliable 64K SPI Bus Serial EEPROM, designed to meet the demands of diverse applications requiring efficient and secure data storage.

This IC organizes its 64K memory as 8,192 x 8 bits, providing ample space for configuration parameters, calibration data, or event logging. Its operation via the Serial Peripheral Interface (SPI) ensures high-speed data transfer with a clock frequency of up to 10 MHz, facilitating rapid read and write operations. The SPI interface also simplifies hardware design by reducing the number of required I/O pins on the microcontroller.

A key feature of the 25AA640AT-I/SN is its low-power consumption, making it suitable for battery-powered and portable devices. It supports a wide voltage range from 1.8V to 5.5V, enhancing its versatility across different system architectures. Additionally, the device incorporates advanced write protection mechanisms, including a hardware write-protect (WP) pin and software protection features, safeguarding stored data against accidental corruption.

With its high endurance of 1 million write cycles and data retention of over 200 years, this EEPROM ensures long-term reliability. Its compact SOIC-8 package allows for efficient PCB space utilization, ideal for modern compact designs. Typical applications range from industrial automation and automotive systems to consumer electronics and smart sensors.

ICGOODFIND: The Microchip 25AA640AT-I/SN exemplifies excellence in serial EEPROM technology, combining high performance, robust data protection, and energy efficiency to address the evolving needs of embedded storage.

Keywords:

SPI Interface

Non-Volatile Memory

Low-Power Consumption

Data Retention

Write Protection