24LC512T-I/ST

Memory IC Overview

The Microchip Technology 24LC512T-I/ST 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 write operations with a 128-byte buffer and a maximum write cycle time of 5 ms. The component is housed in an 8-lead TSSOP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address inputs for expanded addressing.
• Includes Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Features hardware write protection via the WP pin to inhibit array writes when tied to VCC.
• Provides high reliability with over one million erase/write cycles and data retention exceeding 200 years.

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 matches the required package type and temperature grade. Confirm the voltage range compatibility with the target system design, as the LC series requires a minimum of 2.5V. Ensure the I²C bus pull-up resistor values align with the 400 kHz operational speed requirements specified in the datasheet.

Memory IC Selection Notes

Select this component for designs requiring 512 Kbit of non-volatile storage with a standard I²C interface. It is suitable for applications where power consumption must be minimized during active and standby modes. Consider the 128-byte page write capability for efficient data handling. Verify that the 8-lead TSSOP package fits the available PCB footprint constraints.

Memory IC Part Context

This part belongs to the 24XX512 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA512 and 24FC512, which differ primarily in voltage range and clock speed capabilities. The 24LC512 specifically targets the 2.5V to 5.5V operational window, distinguishing it from lower-voltage or higher-speed counterparts within the same product line.

Memory IC Replacement Considerations

Direct substitutes include other 24LC512 variants with different packaging options such as 24LC512-I/SN (SOIC) or 24LC512-I/P (PDIP). Cross-family replacements like 24AA512 or 24FC512 are possible but require verification of voltage and timing specifications.