24AA512-I/SM

Memory IC Overview

The Microchip Technology 24AA512-I/SM is a 512 Kbit (64K x 8) serial electrically erasable PROM featuring an I²C-compatible two-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz. The device supports page writes of up to 128 bytes and includes hardware write protection via the WP pin. It offers over one million erase/write cycles, data retention exceeding 200 years, and operates within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal active and standby currents.
• Hardware write-protect capability that inhibits write operations when the WP pin is tied high.
• Schmitt trigger inputs provide noise suppression and eliminate ground bounce through output slope control.
• Supports cascading up to eight devices on the same bus for expanded address space.

Memory IC Applications

• Personal communications systems requiring non-volatile data storage.
• Data acquisition applications needing reliable parameter retention.
• Embedded systems utilizing I²C buses for configuration memory.

Memory IC Procurement Notes

Verify the specific suffix 'SM' corresponds to the 8-Lead SOIC package as defined in official documentation. Confirm the 'I' designation indicates the Industrial temperature grade (-40°C to +85°C). Ensure compatibility with the required voltage range of 1.7V to 5.5V for your system design before procurement.

Memory IC Selection Notes

Select this component for applications requiring low-voltage operation starting at 1.7V, which distinguishes it from the 2.5V minimum 24LC512 variant. The 400 kHz clock speed is suitable for standard I²C buses. Consider the 8-Lead SOIC package format if surface-mount assembly with specific footprint dimensions is required.

Memory IC Part Context

This part belongs to the 24XX512 family of 512 Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC512 and 24FC512, differentiated primarily by voltage ranges and clock speeds. The 24AA512 specifically targets low-voltage industrial applications.

Memory IC Replacement Considerations

The 24LC512 serves as a functional alternative but requires a minimum supply voltage of 2.5V compared to the 1.7V minimum of the 24AA512. Verify voltage compatibility before substitution.