25AA080BT-I/MS

Memory IC Overview

The Microchip Technology 25AA080BT-I/MS is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM featuring a 32-byte page size. It operates via a standard SPI-compatible serial bus with a maximum clock frequency of 10 MHz and supports supply voltages from 1.8 V to 5.5 V. The device provides hardware write protection, self-timed erase/write cycles, and data retention exceeding 200 years. It is housed in an 8-lead MSOP package and rated for industrial temperatures ranging from -40 °C to +85 °C.

Memory IC Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes programmable block write protection for array security
• Features built-in power-on/off data protection circuitry
• Provides hold functionality to pause serial sequences without resetting

Memory IC Applications

• Microcontroller system configuration storage
• Calibration data and parameter logging
• Secure identification and authentication codes
• General-purpose non-volatile data storage

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the 'I' designation matches the required industrial temperature range of -40 °C to +85 °C. Ensure the 1.8 V minimum voltage requirement aligns with the target system's power rails. Check for any recent Product Change Notifications regarding package or material updates.

Memory IC Selection Notes

Select this component over the 'A' version if a 32-byte page size is preferred for write efficiency. Choose the MSOP package for space-constrained surface-mount designs. Verify that the host microcontroller supports the required SPI modes and voltage levels. Consider the automotive 'E' variant if extended temperature ranges are necessary.

Memory IC Part Context

This part belongs to the 25XX080A/B family of 8 Kbit serial EEPROMs from Microchip Technology. It shares the same core architecture as the 25LC080B but utilizes low-power CMOS technology compatible with 1.8 V logic. The 'B' designation specifically denotes the expanded 32-byte page buffer compared to the 16-byte pages of the 'A' series devices.

Memory IC Replacement Considerations

The 25AA080AT-I/MS serves as a direct tape-and-reel alternative within the same product family.