25LC160AT-E/ST

Overview

The Microchip Technology 25LC160AT-E/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 at VCC ≥ 4.5V. The device operates within a supply voltage range of 2.5V to 5.5V and supports industrial temperature ranges from -40°C to +125°C. It employs a 16-byte page size and is housed in an 8-lead TSSOP package.

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 internal write enable latch
• Provides data retention exceeding 200 years and endurance of 1 million cycles

Applications

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

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging and 'E' denotes automotive temperature grade. Confirm the 'A' variant corresponds to the 16-byte page size rather than the 32-byte option found in 'B' devices. Ensure compatibility with the required voltage levels and interface timing specifications for the target application environment.

Selection Notes

Select this component when an SPI interface is required for non-volatile storage in automotive or industrial environments. The 'E' suffix ensures operation across the extended temperature range necessary for harsh conditions. Consider the 16-byte page size limitation for write operations compared to larger page alternatives if frequent small writes are anticipated.

Part Context

This part belongs to the 25LC160A/B family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The 'A' designation specifies a 16-byte page size, distinguishing it from the 'B' version which offers 32-byte pages. The 'E' suffix identifies the automotive-grade temperature rating, while 'I' would indicate the industrial grade.

Replacement Considerations

Public confirmed substitute: 25LC160BT-E/ST (Note: Verify page size difference between A and B variants).