25AA010AT-I/SN

Memory IC Overview

The Microchip Technology 25AA010AT-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 with a maximum clock frequency of 10 MHz and operates within a supply voltage range of 1.8V to 5.5V. The device supports page write modes up to 16 bytes, includes block write protection capabilities, and offers high reliability with over 1,000,000 erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports sequential read operations and page write modes for efficient data handling
• Includes built-in hardware write protection via dedicated pin and software-controlled block protection
• Features power-on/off data protection circuitry and a write enable latch mechanism

Memory IC Applications

• Microcontroller system configuration storage
• Calibration data and parameter logging
• Device identification and security code storage

Memory IC Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade (-40°C to +85°C) and SOIC-8 package. Confirm RoHS compliance status as required by project specifications. Ensure the ordering part number matches the exact datasheet designation to avoid functional discrepancies related to voltage ranges or package types.

Memory IC Selection Notes

Select this component when an SPI interface is preferred over I2C for simpler protocol implementation. It is suitable for applications requiring low standby current and robust data retention. Consider the 16-byte page size limitation during firmware design to prevent data overwrite across page boundaries.

Memory IC Part Context

This part belongs to the 25AA010A/25LC010A family of 1 Kbit EEPROMs. The 'AA' variant indicates a 1.8V minimum operating voltage, distinguishing it from the 'LC' series which requires a higher minimum voltage. The 'SN' suffix denotes the 8-lead Small Outline Integrated Circuit (SOIC) package format.

Memory IC Replacement Considerations

The 25LC010AT-I/SN serves as a direct physical replacement but requires a minimum supply voltage of 2.5V instead of 1.8V. Verify that the target system's VCC rail remains above 2.5V to ensure proper operation.