24LC512T-E/SM

Memory IC Overview

The Microchip Technology 24LC512T-E/SM 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 and supports clock frequencies up to 400 kHz. The device includes a 128-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It is qualified under AEC-Q100 standards for automotive applications and offers extended temperature operation from -40°C to +125°C.

Memory IC Feature Summary

• AEC-Q100 qualified for automotive reliability requirements
• Hardware write-protect functionality via dedicated pin
• 128-byte page write buffer for efficient data transfer
• Schmitt trigger inputs with output slope control

Memory IC Applications

• Automotive electronic systems requiring non-volatile data storage
• Industrial data acquisition and logging devices
• Personal communication equipment
• Consumer electronics with high endurance needs

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging as indicated by distributor listings. Confirm the 'E' suffix denotes the extended temperature range (-40°C to +125°C). Ensure the 'SM' suffix matches the required 8-Lead SOIJ package variant. Cross-reference the manufacturer part number with official Microchip documentation to confirm current production status and RoHS compliance.

Memory IC Selection Notes

Select this component when automotive qualification (AEC-Q100) is mandatory. Choose the 24LC512 series over 24AA512 if the minimum operating voltage requirement is 2.5V rather than 1.7V. Opt for the 'T' suffix version if automated surface-mount assembly using pick-and-place machinery is planned. Consider the 'SM' package only if the specific 8-Lead SOIJ footprint dimensions are required by the PCB layout.

Memory IC Part Context

This part belongs to the 24XX512 family of serial EEPROMs, which also 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 and 400 kHz maximum clock speed. The 'T' indicates reel packaging, 'E' specifies extended temperature grade, and 'SM' identifies the 8-Lead Small Outline Junction (SOIJ) package type.

Memory IC Replacement Considerations

24LC512T-I/SM

Memory IC FAQ

How does the WP pin function?

The Write-Protect (WP) pin inhibits write operations when tied to VCC. When tied to VSS, write operations are enabled. Read operations remain unaffected regardless of the WP pin state.

What is the maximum page write size?

The device features a 128-byte page write buffer, allowing up to 128 bytes to be written in a single sequence before a Stop condition initiates the internal write cycle.