25LC160A-E/SN

Overview

The Microchip Technology 25LC160A-E/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 extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Supports high-speed SPI communication with up to 10 MHz clock frequency
• Includes hardware write protection via dedicated WP pin and software block protection
• Features built-in power-on/off data protection circuitry and write enable latch
• Provides hold functionality to pause serial transmission without resetting the sequence

Applications

• Microcontroller system configuration storage
• Calibration parameter retention
• Data logging applications requiring non-volatile memory
• Embedded systems needing reliable data persistence

Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the SOIC-8 package and '-E' indicates the automotive temperature grade (-40°C to +125°C). Confirm the specific revision matches the required datasheet version DS21807D. Ensure compatibility with the host system's SPI voltage levels and timing requirements before finalizing procurement.

Selection Notes

Select this component when an SPI interface is preferred over I2C or Microwire protocols. The 16Kbit capacity suits applications requiring moderate data storage. The automotive temperature rating makes it suitable for harsh environments where standard industrial grades may fail. Verify that the 16-byte page size aligns with the application's write granularity needs.

Part Context

This part belongs to the 25LC160A/B family of 16 Kbit Serial EEPROMs. The 'LC' designation indicates a 2.5V minimum operating voltage, distinguishing it from the 'AA' series which supports lower voltages. The 'B' variant offers a 32-byte page size, whereas the 'A' version provides 16 bytes. This specific model represents the automotive-grade 'A' version in an SOIC package.

Replacement Considerations

The 25LC160A-I/SN serves as a direct functional substitute with identical specifications but a reduced temperature range (-40°C to +85°C). Other compatible parts include the 25LC160B-E/SN, which shares the same electrical characteristics but utilizes a 32-byte page size instead of 16 bytes.