25AA010A-I/SN

Memory IC Overview

The Microchip Technology 25AA010A-I/SN is a 1 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) utilizing an SPI-compatible serial bus. It features a 128 x 8-bit organization and supports a maximum clock frequency of 10 MHz. The device operates within a supply voltage range of 1.8V to 5.5V and is housed in an 8-lead SOIC package. It includes self-timed erase and write cycles with a maximum duration of 5 ms, ensuring reliable non-volatile data storage.

Memory IC Feature Summary

• Supports sequential read operations and page write mode for up to 16 bytes per cycle.
• Includes hardware write protection via the WP pin and software block protection for array segments.
• Features built-in power-on/off data protection circuitry and a write enable latch mechanism.

Memory IC Applications

• Microcontroller system configuration storage
• Calibration parameter persistence
• Device identification and tracking data logging

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C). Confirm the 'SN' suffix indicates the 8-lead SOIC package type. Ensure compatibility with the required SPI interface timing specifications for your specific host controller before finalizing procurement.

Memory IC Selection Notes

Select this component when a low-pin-count, cost-effective solution for small-scale non-volatile data retention is required. It is suitable for applications needing frequent updates to small datasets, such as counters or status flags, where high endurance and long-term data retention are critical design parameters.

Memory IC Part Context

This part belongs to the 25XX010A family of 1 Kbit SPI EEPROMs from Microchip Technology. It shares functional similarities with the 25LC010A but differs in its minimum operating voltage specification. The series is designed for direct interfacing with popular microcontroller families supporting standard SPI protocols.

Memory IC Replacement Considerations

The 25LC010A is a functionally similar alternative within the same datasheet, though it requires a higher minimum supply voltage of 2.5V compared to the 1.8V minimum of the 25AA010A. Verify voltage headroom in the target application before substituting.