24AA512-I/ST14

Memory IC Overview

The Microchip Technology 24AA512-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 within the industrial temperature range of -40°C to +85°C. The device utilizes low-power CMOS technology, offering maximum standby current of 1 µA and active read current of 400 µA. It includes a 128-byte page write buffer, hardware write-protect functionality via the WP pin, and Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same 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 control systems operating within standard temperature ranges

Memory IC Procurement Notes

Verify that the specific ordering suffix ST14 corresponds to the 14-lead TSSOP package variant as defined in the official datasheet. Confirm the 'I' designation indicates compliance with the industrial temperature range specifications. Ensure the component meets RoHS compliance requirements for your assembly process.

Memory IC Selection Notes

Select this component for designs requiring a 512 Kbit capacity with I²C connectivity. The 1.7V minimum operating voltage makes it suitable for low-voltage logic interfaces. Consider the 14-lead TSSOP package if board space constraints favor surface-mount technology over through-hole options.

Memory IC Part Context

This part belongs to the 24XX512 family of serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features but varies in voltage ranges and clock speeds. The 24AA512 specifically supports operation down to 1.7V, distinguishing it from variants with higher minimum voltage thresholds.

Memory IC Replacement Considerations

The 24LC512-I/ST14 serves as a direct physical replacement, though it requires a minimum supply voltage of 2.5V instead of 1.7V. Verify system power rails support this higher threshold before substitution.