25LC320-I/SN

Overview

The Microchip Technology 25LC320-I/SN is a 32 Kbit (4096 x 8 bit) serial Electrically Erasable PROM. It features an SPI-compatible interface with a maximum clock frequency of 2 MHz and operates within a supply voltage range of 2.5 V to 5.5 V. The device supports industrial temperature ranges from -40°C to +85°C and is housed in an 8-pin SOIC package.

Feature Summary

• Supports block write protection for none, one-quarter, one-half, or all memory array segments
• Includes built-in power-on/off data protection circuitry and a write enable latch
• Provides hardware write protection via the WP pin controlled by the STATUS register

Applications

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

Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade (-40°C to +85°C) and the 8-pin SOIC package format. Confirm that the 2 MHz clock speed requirement aligns with the 25LC320 variant specifications rather than higher-speed alternatives like the 25C320.

Selection Notes

Select this component when a 32 Kbit non-volatile memory solution is required with standard SPI connectivity. Ensure the application environment remains within the specified 2.5 V to 5.5 V supply voltage limits and does not exceed the 2 MHz operational clock frequency defined for the LC series.

Part Context

This part belongs to the 25XX320 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25AA320 and 25C320 variants, differing primarily in operating voltage ranges and maximum clock frequencies while maintaining identical memory organization and instruction sets.

Replacement Considerations

Public confirmed substitute part numbers: 25LC320A-I/SN.