25A512T-I/SN

Memory IC Overview

The Microchip Technology 25A512T-I/SN is a 512 Kbit serial EEPROM utilizing an SPI-compatible interface. It operates within a supply voltage range of 1.7V to 3.0V and supports clock frequencies up to 10 MHz in industrial temperature conditions (-40°C to +85°C). The device features a 128-byte page size, 1 million erase/write cycle endurance, and data retention exceeding 200 years. It includes sector write protection, self-timed erase and write cycles, and deep power-down capabilities.

Memory IC Feature Summary

• Supports byte, page, sector, and chip erase operations via SPI interface
• Includes hardware and software write protection mechanisms with block protection bits
• Features low-power CMOS technology with deep power-down mode for minimal standby current
• Provides electronic signature identification and hold functionality for bus pausing

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration data logging
• Embedded firmware backup

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature range of -40°C to +85°C and the 'SN' indicates the SOIC-8 package. Confirm the datasheet revision matches the required specifications. Ensure the ordering suffix does not imply different electrical characteristics unless explicitly documented by the manufacturer.

Memory IC Selection Notes

Select this component when a non-volatile memory solution requires sector-level erasing capabilities similar to Flash but with EEPROM endurance characteristics. It is suitable for applications needing moderate write speeds and robust data retention without complex wear leveling algorithms typically associated with NAND Flash devices.

Memory IC Part Context

This part belongs to the 25A512 family of serial EEPROMs from Microchip Technology. It shares architectural similarities with other 512Kbit SPI EEPROMs but is distinct due to its specific voltage range and erase granularity options. The family emphasizes reliability and ease of integration into standard SPI buses found in various microcontroller ecosystems.

Memory IC Replacement Considerations

Check for direct pin-to-pin compatible alternatives such as the 25LC512 series if higher voltage tolerance (up to 5.5V) is required. Verify that any substitute maintains the same SPI command set and page size to ensure software compatibility without modification.