24AA512-I/S17K

Memory IC Overview

The Microchip Technology 24AA512-I/S17K 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, supporting maximum clock frequencies of 100 kHz below 2.5V and 400 kHz at or above 2.5V. The device utilizes low-power CMOS technology with a maximum standby current of 1 µA and read current of 400 µA. It includes a 128-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. The component supports up to one million erase/write cycles and retains data for over 200 years.

Memory IC Feature Summary

• Supports cascading up to eight devices on a single bus using functional address lines A0, A1, and A2.
• Features hardware write protection controlled by the WP pin to inhibit array writes when tied high.
• Includes output slope control to eliminate ground bounce and Schmitt trigger inputs for enhanced noise suppression.

Memory IC Applications

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing low-power memory solutions
• Industrial embedded systems utilizing I²C communication protocols

Memory IC Procurement Notes

Verify the specific suffix 'S17K' against official Microchip documentation to confirm it denotes the bare die configuration in waffle pack format, as standard retail packages differ. Confirm RoHS compliance status and ensure the industrial temperature range (-40°C to +85°C) matches system requirements. Validate that the wafer-level packaging is suitable for the intended assembly process.

Memory IC Selection Notes

Select this component for designs requiring broad voltage operation down to 1.7V with I²C compatibility. Ensure the application can accommodate the specific die package type if not using standard surface mount or through-hole variants. Consider the 128-byte page write capability for efficient data logging. Verify that the host controller supports the required acknowledge polling mechanism during internal write cycles.

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, which share similar architectures but differ in voltage ranges and clock speeds. The 24AA512 specifically targets low-voltage applications compared to the 2.5V minimum of the LC series.

Memory IC Replacement Considerations

The 24LC512 serves as a functional substitute within the same family, though it requires a minimum supply voltage of 2.5V rather than 1.7V. The 24FC512 offers higher clock speed capabilities up to 1 MHz but also shares the 1.7V lower limit. Verify package availability and electrical specifications before substitution.