25AA010AT-I/MS

Memory IC Overview

The Microchip Technology 25AA010AT-I/MS is a 1 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) utilizing a SPI-compatible serial bus. It features a 128 x 8-bit organization with a maximum clock frequency of 10 MHz and supports page write modes up to 16 bytes. The device operates within a supply voltage range of 1.8V to 5.5V and an industrial temperature range of -40°C to +85°C. It is housed in an 8-lead MSOP package.

Memory IC Feature Summary

• Supports sequential read operations and self-timed erase/write cycles with a maximum duration of 5 ms.
• Includes built-in hardware write protection mechanisms such as power-on/off data protection, a write enable latch, and a dedicated write-protect pin.
• Features block write protection allowing configuration to protect none, one-quarter, one-half, or the entire memory array.

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the specific ordering suffix 'T' corresponds to tape-and-reel packaging requirements for automated assembly processes. Confirm the 'I' designation aligns with the required industrial temperature operating range. Ensure the MSOP package dimensions match the target PCB footprint constraints before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a low-pin-count EEPROM solution is required for systems utilizing standard SPI interfaces. It is suitable for applications needing non-volatile storage for small datasets where moderate write endurance is sufficient. Consider the 1.8V minimum supply voltage capability if the host system operates at lower logic levels compared to traditional 5V devices.

Memory IC Part Context

This part belongs to the 25XX010A family of serial EEPROMs manufactured by Microchip Technology. The family shares identical functional specifications but varies primarily in supply voltage ranges and package options. The 25AA variant specifically supports operation down to 1.8V, distinguishing it from the 25LC series which typically requires a higher minimum voltage.

Memory IC Replacement Considerations

Direct replacements include other 25AA010A variants with different package styles such as SOIC or TSSOP, provided the pinout remains compatible. Cross-manufacturer equivalents may require verification of SPI command set compatibility and voltage level tolerances.