25AA512T-I/SN16KVAO

Memory IC Overview

The Microchip Technology 25AA512T-I/SN16KVAO is a 512 Kbit (64K x 8) serial EEPROM utilizing an SPI-compatible interface. It operates within a voltage range of 1.8V to 5.5V and supports clock frequencies up to 20 MHz at higher voltages. 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, deep power-down capabilities, and AEC-Q100 automotive qualification.

Memory IC Feature Summary

• Supports byte, page, sector, and chip erase operations via SPI bus
• Includes hardware write-protect pin and software block protection bits
• Features deep power-down mode for minimal current consumption
• Provides electronic signature identification capability

Memory IC Applications

• Automotive embedded systems requiring AEC-Q100 compliance
• Industrial data logging with high endurance requirements
• Microcontroller configuration storage
• Calibration data retention in low-power devices

Memory IC Procurement Notes

Verify the specific suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the SOIC-8 package. Confirm that the 'T' denotes tape and reel packaging if required for automated assembly. Ensure the ordering code matches the exact voltage and speed specifications needed for the target application environment.

Memory IC Selection Notes

Select this component when a 512 Kbit capacity with SPI interface is required. It is suitable for applications needing sector-level protection and automotive reliability. Consider alternatives if lower voltage operation below 1.8V or different package types like DFN are necessary. Verify system voltage compatibility with the 1.8V to 5.5V operating range.

Memory IC Part Context

This part belongs to the 25AA512 family of serial EEPROMs from Microchip Technology. It shares functional similarities with other 512 Kbit SPI EEPROMs but is distinguished by its specific automotive qualification and industrial temperature rating. The device integrates standard EEPROM functions with additional flash-like erase capabilities.

Memory IC Replacement Considerations

Direct replacements include other 25AA512 variants with compatible packages and temperature ranges. Cross-reference pinouts and instruction sets when substituting with similar capacity EEPROMs from other manufacturers to ensure SPI protocol compatibility.