24LC512-I/PG

Memory IC Overview

The Microchip Technology 24LC512-I/PG is a 512 Kbit (64K x 8) serial Electrically Erasable PROM featuring an I²C-compatible two-wire interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz, with a maximum access time of 900 ns. The device utilizes a 128-byte page write buffer and requires a maximum write cycle time of 5 ms. Designed for industrial applications, it functions reliably across temperatures from -40°C to +85°C and is housed in an 8-lead Plastic Dual In-Line (PDIP) package.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address pins A0, A1, and A2.
• Includes Schmitt trigger inputs on SDA and SCL lines to suppress noise spikes.
• Features output slope control designed to eliminate ground bounce during operation.
• Provides hardware write protection via the WP pin to inhibit array writes when tied to VCC.

Memory IC Applications

• Personal communications equipment requiring non-volatile data storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers storing calibration data or configuration logs

Memory IC Procurement Notes

Verify that the ordering suffix 'PG' corresponds specifically to the 8-lead PDIP package variant as documented in official Microchip datasheets. Confirm the temperature grade 'I' matches the required industrial operating range of -40°C to +85°C. Ensure compatibility with the host system's I²C voltage levels, noting this specific model requires a minimum supply voltage of 2.5V.

Memory IC Selection Notes

Select this component when a 512 Kbit capacity is required alongside standard I²C connectivity. The Industrial temperature grade (-40°C to +85°C) suits general-purpose electronics. Consider the PDIP package only if through-hole mounting is necessary; otherwise, surface-mount alternatives like SOIC or TSSOP are available within the same family. Verify that the 400 kHz maximum clock speed meets the system's throughput requirements.

Memory IC Part Context

The 24LC512 belongs to the 24XX512 family of serial EEPROMs manufactured by Microchip Technology. This series includes variants such as the 24AA512 and 24FC512, which differ primarily in supply voltage ranges and maximum clock speeds. The 24LC512 specifically targets applications requiring operation down to 2.5V, distinguishing it from lower-voltage or higher-speed counterparts in the lineup.

Memory IC Replacement Considerations

Direct substitutes include other 24LC512 variants with different packages, such as 24LC512-I/SN (SOIC) or 24LC512-I/ST (TSSOP). Cross-family replacements like 24AA512 or 24FC512 require verification of voltage compatibility and clock frequency limits.