25AA160BT-I/ST

Memory IC Overview

The Microchip Technology 25AA160BT-I/ST is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It utilizes an SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device supports a 32-byte page size and operates within a supply voltage range of 1.8 V to 5.5 V. It is housed in an 8-lead TSSOP package and functions across an industrial temperature range of -40 °C to +85 °C.

Memory IC Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes hardware write protection via dedicated pin and software block protection
• Features self-timed erase and write cycles with automatic latch reset
• Provides data retention exceeding 200 years and high ESD protection

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter memory
• Calibration value storage
• Device identification and tracking

Memory IC Procurement Notes

Verify the specific suffix 'T' against official documentation, as standard datasheets typically list 'ST' for tube packaging. Confirm that the 'B' variant designation aligns with the required 32-byte page size specification. Ensure the 'I' suffix matches the intended industrial temperature operating range requirements for the target application environment.

Memory IC Selection Notes

Select this component when low-voltage operation starting at 1.8 V is required, distinguishing it from the 2.5 V minimum LC series. Choose the B version specifically if the application demands a 32-byte page buffer rather than the 16-byte capacity found in A versions. Verify compatibility with existing SPI master controllers regarding clock polarity and phase settings.

Memory IC Part Context

This part belongs to the 25XX160A/B family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features including SPI interface and write protection mechanisms. Variants are differentiated primarily by voltage ranges (AA vs LC) and page sizes (A vs B).

Memory IC Replacement Considerations

Direct substitutes include other 25AA160B variants such as 25AA160B-I/MS or 25AA160B-I/SN, provided the package type change is acceptable. Cross-family replacements like 25LC160B require verification of the higher minimum voltage requirement.