25LC160AT-E/SN

Overview

The Microchip Technology 25LC160AT-E/SN is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It utilizes an SPI-compatible serial bus with SCK, SI, and SO signals controlled by CS. The device supports a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. Operating within the Automotive (E) temperature range of -40°C to +125°C, it employs an 8-lead SOIC package.

Feature Summary

• Supports high-speed SPI communication up to 10 MHz
• Includes hardware write protection via WP pin and STATUS register bits
• Features self-timed erase and write cycles with internal timing control
• Provides data retention exceeding 200 years and endurance of 1 million cycles

Applications

• Automotive electronic systems requiring extended temperature operation
• Industrial controllers needing non-volatile data storage
• Embedded devices utilizing SPI interfaces for configuration memory

Procurement Notes

Verify the specific suffix 'AT' against official Microchip documentation to confirm availability and exact specifications, as standard datasheets primarily list 'A' and 'B' variants. Ensure the automotive grade designation matches project requirements for the -40°C to +125°C operating range. Confirm RoHS compliance status directly from the manufacturer's current product release notes.

Selection Notes

Select this component for applications demanding automotive-grade reliability and wide temperature tolerance. The 16Kbit capacity suits moderate data logging needs. Verify that the system voltage aligns with the 2.5V to 5.5V operational range. Consider the 16-byte page size for write efficiency compared to larger page sizes in other variants.

Part Context

This part belongs to the 25XX160A/B family of 16 Kbit Serial EEPROMs. It shares architectural similarities with the 25LC160A but differs in packaging and specific electrical characteristics defined by the suffixes. The family offers both Industrial and Automotive temperature grades across various package options including SOIC, TSSOP, and MSOP.

Replacement Considerations

Direct substitutes include the 25LC160A-E/SN or 25LC160B-I/SN depending on page size requirements. Verify compatibility regarding the HOLD pin functionality and voltage thresholds before swapping.