24LC512-I/ST14

Memory IC Overview

The Microchip Technology 24LC512-I/ST14 is a 512 Kbit Electrically Erasable PROM organized as one block of 64K x 8-bit memory. It operates with a single supply voltage ranging from 2.5V to 5.5V and features a two-wire serial interface compatible with I²C protocols, supporting clock frequencies up to 400 kHz. The device includes a 128-byte page write buffer and hardware write-protect capabilities via the WP pin. It supports industrial temperature ranges from -40°C to +85°C and is housed in a 14-Lead TSSOP package.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using configurable chip select inputs for expanded address space.
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.
• Features hardware write protection that inhibits write operations when the WP pin is tied to VCC while maintaining read access.

Memory IC Applications

• Embedded systems requiring non-volatile data storage for configuration parameters.
• Industrial equipment needing reliable logging of operational data.
• Consumer electronics utilizing low-power memory for user settings.

Memory IC Procurement Notes

Verify the specific ordering suffix ST14 corresponds to the 14-Lead TSSOP package variant. Confirm the Industrial temperature grade (I) matches the required operating range of -40°C to +85°C. Ensure the voltage supply aligns with the 2.5V minimum requirement distinct from other variants in the family.

Memory IC Selection Notes

Select this component when a 512 Kbit capacity is required with I²C connectivity. The 14-Lead TSSOP package offers additional pin availability compared to smaller footprints. Consider the 400 kHz maximum clock speed and page write limitations when designing the communication protocol.

Memory IC Part Context

This part belongs to the 24XX512 series, which includes the 24AA512 and 24FC512 variants. While sharing the same memory architecture and interface, the 24LC512 is distinguished by its 2.5V minimum operating voltage, whereas other series members may support lower voltages or higher clock speeds.

Memory IC Replacement Considerations

Direct substitutes within the same package include the 24LC512-E/ST14 for extended temperature operation. Other package options like 24LC512-I/ST or 24LC512-I/P offer equivalent functionality in different form factors.