25LC080D-I/ST

Overview

The Microchip Technology 25LC080D-I/ST is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It features a 32-byte page size and operates via a standard SPI-compatible serial bus with clock frequencies up to 10 MHz. The device supports a supply voltage range of 2.5 V to 5.5 V and is housed in an 8-lead TSSOP package. It provides industrial temperature coverage from -40°C to +85°C, ensuring reliable data retention exceeding 200 years and endurance of over 1 million erase/write cycles.

Feature Summary

• Supports high-speed SPI communication with maximum clock frequencies reaching 10 MHz for efficient data transfer.
• Includes built-in write protection mechanisms such as a write enable latch, power-on/off data protection, and hardware write-protect pin control.
• Offers flexible block write protection allowing users to protect none, one-quarter, one-half, or the entire memory array.
• Features a hold function that allows suspension of serial communication without resetting the sequence, facilitating higher priority interrupt servicing.

Applications

• Configuration storage in microcontroller-based systems
• Calibration parameter persistence
• Log data caching

Procurement Notes

Verify the specific suffix 'I/ST' confirms the Industrial temperature grade (-40°C to +85°C) and TSSOP-8 package. Ensure compatibility with the 32-byte page size characteristic of the 'D' variant, distinct from the 16-byte 'C' version. Confirm RoHS compliance and Pb-free status as specified in the datasheet.

Selection Notes

Select this component when an 8 Kbit non-volatile memory solution with SPI interface is required. The 'D' suffix indicates a 32-byte page size, suitable for applications requiring larger write buffers compared to the 16-byte 'C' version. The 'I' designation ensures operation within the industrial temperature range, while the 'ST' suffix specifies the TSSOP-8 surface-mount package.

Part Context

This part belongs to the 25LC080C/D family of 8K SPI Bus Serial EEPROMs. It shares core electrical characteristics with other variants in the series but differs in page size ('D' vs 'C') and operating temperature range ('I' vs 'E'). The device is designed for direct interfacing with popular microcontroller families, including Microchip PIC devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.