25AA080B-I/SN

Memory IC Overview

The Microchip Technology 25AA080B-I/SN is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM featuring a 32-byte page size. It operates on a 1.8V to 5.5V supply voltage and supports a maximum clock frequency of 10 MHz via a standard SPI-compatible interface. The device provides industrial temperature range operation from -40°C to +85°C and is housed in an 8-lead SOIC package.

Memory IC Feature Summary

• Supports high-speed serial communication with a maximum clock frequency of 10 MHz
• Includes programmable block write protection for selective array security
• Features hardware data protection through power-on/off circuitry and a dedicated write-protect pin

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value archiving

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature range (-40°C to +85°C). Confirm the 'SN' designation corresponds to the 8-lead Small Outline Integrated Circuit package. Ensure the 'B' variant is selected for the required 32-byte page size rather than the 16-byte 'A' version.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with a 32-byte page buffer is required. The 1.8V minimum operating voltage makes it suitable for modern low-power embedded systems. Verify that the host microcontroller supports the necessary SPI modes and has sufficient I/O lines for chip select, clock, and data transfer.

Memory IC Part Context

This part belongs to the 25AA080A/B family of 8Kbit serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25LC080 series but differs in its lower minimum operating voltage specification. The device utilizes a standard SPI bus for all instruction and data transfers.

Memory IC Replacement Considerations

The 25AA080A-I/SN serves as a functional substitute within the same package, though it features a smaller 16-byte page size instead of 32 bytes. Other variants such as the 25LC080B-I/SN offer identical electrical performance but operate at a higher minimum voltage of 2.5V.