24AA512T-I/ST14

Memory IC Overview

The Microchip Technology 24AA512T-I/ST14 is a 512 Kbit (64K x 8) serial electrically erasable PROM featuring a two-wire I²C compatible interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 400 kHz. The device includes a 128-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead TSSOP package with tape-and-reel packaging, designed for industrial temperature ranges.

Memory IC Feature Summary

• Supports cascading of up to eight devices on a single bus using configurable chip select pins.
• Features hardware write protection that inhibits write operations when the WP pin is tied high.
• Includes output slope control to eliminate ground bounce and Schmitt triggers for noise suppression.

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration memory for microcontroller-based designs
• Industrial control systems needing reliable parameter retention

Memory IC Procurement Notes

Verify the specific suffix ST14 confirms the 8-lead TSSOP package type and tape-and-reel delivery format. Ensure the 'I' designation matches the required -40°C to +85°C industrial operating temperature range for your application environment. Confirm RoHS compliance status if restricted substances are a constraint.

Memory IC Selection Notes

Select this component for applications requiring low-power CMOS technology with standby currents as low as 1 µA. It is suitable for designs needing flexible addressing across multiple devices on the same I²C bus. Consider the 128-byte page write buffer for efficient data throughput compared to byte-write-only alternatives.

Memory IC Part Context

This part belongs to the 24XX512 family of 512 Kbit I²C Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC512 and 24FC512, which share similar interfaces but differ in voltage ranges and maximum clock speeds. The 24AA512 specifically supports operation down to 1.7V.

Memory IC Replacement Considerations

Direct substitutes within the same package include other 24AA512 variants with different temperature grades or packaging options. Cross-brand replacements must match the 512 Kbit capacity, I²C interface, and physical footprint while verifying voltage and speed compatibility.