24LC512T-I/ST14

Memory IC Overview

The Microchip Technology 24LC512T-I/ST14 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 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device utilizes low-power CMOS technology, drawing a maximum read current of 400 µA and standby current of 1 µA. It supports page writes up to 128 bytes and includes hardware write protection via the WP pin.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address lines A0, A1, and A2.
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.
• Features a 128-byte page write buffer for efficient data transfer operations.
• Provides hardware write protection through the WP pin to inhibit array writes.

Memory IC Applications

• Personal communications systems requiring non-volatile storage
• Data acquisition applications needing reliable parameter retention
• Embedded systems utilizing I²C bus architecture

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging and 'ST14' indicates the 14-lead TSSOP package variant. Confirm the temperature grade 'I' matches industrial specifications (-40°C to +85°C). Ensure compatibility with the host controller's I²C voltage levels and pull-up requirements before integration.

Memory IC Selection Notes

Select this component when a 512 Kbit capacity is required within a 14-lead surface-mount footprint. It is suitable for designs operating strictly between 2.5V and 5.5V. Consider alternatives like the 24AA512 if operation below 2.5V is necessary, or the 24FC512 for higher speed requirements up to 1 MHz.

Memory IC Part Context

This part belongs to the 24XX512 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA512 and 24FC512 but is distinguished by its specific voltage range and clock speed limitations. The 14-lead TSSOP package offers a compact solution for space-constrained PCB layouts compared to larger DIP or SOIC options.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24LC512-I/ST14 and 24LC512T-I/ST. Verify package dimensions and marking codes when substituting to ensure mechanical fit and traceability compliance.