25LC160AT-I/SN

Overview

The Microchip Technology 25LC160AT-I/SN is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It utilizes an SPI-compatible serial bus for communication, supporting a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. The device operates within a supply voltage range of 2.5V to 5.5V and features a 16-byte page size. It is housed in an 8-lead SOIC package and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes hardware write protection via WP pin and software block protection
• Features self-timed erase and write cycles with built-in power-on data protection

Applications

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

Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade (-40°C to +85°C) and SOIC-8 package. Confirm the 'A' version designation indicates the 16-byte page size rather than the 32-byte page size found in 'B' versions. Ensure the datasheet DS21807D is referenced for accurate electrical characteristics.

Selection Notes

Select this component when an SPI interface is required for non-volatile storage in industrial environments. The 2.5V to 5.5V operating range provides flexibility for various logic levels. Consider the 16-byte page size limitation for write operations compared to larger page sizes if frequent small writes are anticipated.

Part Context

This part belongs to the 25XX160A/B family of 16 Kbit Serial EEPROMs. It shares architectural similarities with the 25AA160A/B but differs in minimum operating voltage requirements. The 'A' variant specifically defines the 16-byte page structure, distinguishing it from the 'B' variant which offers 32-byte pages.

Replacement Considerations

Public confirmed substitute part numbers: 25LC160A-I/SN, 25LC160B-I/SN.