25AA080B-I/SNG

Memory IC Overview

The 25AA080B-I/SNG is an 8 Kbit Serial Electrically Erasable PROM manufactured by Microchip Technology. It utilizes a low-power CMOS technology and interfaces via a standard SPI-compatible serial bus requiring SCK, SI, SO, CS, and HOLD pins. The device features a 1024 x 8-bit organization with a 32-byte page size specific to the 'B' version. It supports a maximum clock frequency of 10 MHz and operates within a supply voltage range of 1.8V to 5.5V. The component is housed in an 8-lead SOIC package and is rated for industrial temperature applications.

Memory IC Feature Summary

• Supports high-speed SPI communication with a maximum clock frequency of 10 MHz
• Includes programmable block write protection allowing selective array security
• Features hardware data protection through power-on/off circuitry and a dedicated write-protect pin
• Provides a hold function to pause serial transmission without resetting the sequence

Memory IC Applications

• Data storage for microcontroller systems requiring non-volatile memory
• Configuration parameter retention in embedded devices
• Calibration data logging in industrial instrumentation

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the 'B' designation indicates the 32-byte page size variant rather than the 16-byte 'A' version. Ensure the source documentation aligns with the specific revision level for accurate electrical characteristics.

Memory IC Selection Notes

Select this component when an SPI interface is preferred over I2C for higher throughput. The 1.8V minimum operating voltage makes it suitable for low-voltage logic systems. Consider the 32-byte page size for efficient sequential writing operations compared to smaller page variants.

Memory IC Part Context

This part belongs to the 25XX080A/B family of 8 Kbit Serial EEPROMs from Microchip. It shares functional similarities with the 25LC080B but differs in its lower minimum operating voltage specification. The 'I' suffix denotes the Industrial temperature range, distinguishing it from Automotive or Extended grades.

Memory IC Replacement Considerations

The 25LC080B-I/SNG serves as a direct functional substitute within the same package and temperature grade, differing primarily in the minimum supply voltage requirement.