25LC160B-E/P

Overview

The Microchip Technology 25LC160B-E/P 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, SO, and CS signals for communication. The device supports a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. It operates within a supply voltage range of 2.5V to 5.5V and includes a 32-byte page size. The component is housed in an 8-lead PDIP 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 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 'E' against official documentation to confirm it denotes the Automotive temperature grade (-40°C to +125°C) rather than standard Industrial grade. Ensure the 'P' suffix correctly identifies the 8-lead PDIP package type. Confirm RoHS compliance status as required by your manufacturing standards before finalizing procurement orders.

Selection Notes

Select this part when a 16 Kbit capacity with SPI interface is required. The 'B' variant provides a 32-byte page size compared to the 16-byte page of the 'A' version. Ensure the application environment falls within the specified voltage and temperature limits. Verify that the host microcontroller supports the necessary SPI modes and timing requirements for reliable operation.

Part Context

This component belongs to the 25XX160A/B family of serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features including low-power CMOS technology and similar instruction sets. Variations exist primarily in page size ('A' vs 'B') and operating voltage ranges (LC vs AA). The 25LC160B specifically targets applications requiring higher speed and larger page writes within the 2.5V to 5.5V range.

Replacement Considerations

Direct substitutes include other 25LC160 variants with compatible packages and electrical characteristics. Check datasheets for equivalent page sizes and temperature grades. Ensure any replacement maintains the same SPI protocol compatibility and voltage specifications.