25AA128 – 128Kbit Serial SPI EEPROM Memory

25AA128 – 128Kbit Serial SPI EEPROM Memory


25AA128-I/P – EEPROM, Serial SPI (2-Wire), 128 Kbit, 10 MHz, DIP, 8 Pins
Note: Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE

Brand: Microchip

Availability: 2 in stock SKU: STC-00220 Categories: , Tags: ,


The Microchip 25AA128 is a 128 Kb Serial EEPROM utilizing the industry standard Serial Peripheral Interface (SPI) compatible serial bus. The device is organized as one block of 16,384 x 8-bit and is optimized for use in consumer electronics, industrial, medical, and automotive applications where reliable and dependable nonvolatile memory storage is essential.

Software write protection allows the user to protect ¼, ½, or the entire memory array. A hardware write protect pin is also provided, which additionally protects against inadvertent writes to the status register. The EEPROM is available in a variety of space-saving packaging option

  • Density: 128 Kbit
  • Op. Volt Range (V): 1.8 to 5.5
  • Max. Clock Freq: 10 MHz
  • Page Size (bytes): 64
  • Write Protect: Quarter, Half, Whole Array
  • Temp Range (°C): -40°C to +85°C
  • Endurance: 1,000,000
  • Bus Modes: SPI

Download Datasheet

Additional information

Weight0.9 g



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