24LC512T-I/SN

Memory IC Overview

The Microchip Technology 24LC512T-I/SN is a 512 Kbit (64K x 8-bit) 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 supports random and sequential reads up to the 512K boundary and includes a 128-byte page write buffer. It is housed in an 8-lead SOIC package and rated for industrial temperatures between -40°C and +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address lines A0, A1, and A2.
• Includes hardware write protection via the WP pin to inhibit array writes when tied to VCC.
• Features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.

Memory IC Applications

• Personal communications equipment
• Data acquisition systems
• Embedded storage for parameter logging

Memory IC Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the 8-lead SOIC package and 'I' indicates the industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status as specified in the manufacturer's documentation. Ensure the specific tape-and-reel quantity matches the project requirements.

Memory IC Selection Notes

Select this component for applications requiring non-volatile data retention with low standby current. The 24LC512 variant specifically requires a minimum operating voltage of 2.5V, distinguishing it from the 24AA512 which supports operation down to 1.7V. Verify that the system power supply remains within the 2.5V to 5.5V range during all operational states.

Memory IC Part Context

This part belongs to the 24XX512 family of 512 Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA512 and 24FC512, which share similar interfaces but differ in voltage ranges and maximum clock frequencies. The 'T' suffix denotes tape-and-reel packaging, while 'SN' specifies the 8-lead SOIC physical form factor.

Memory IC Replacement Considerations

The 24LC512T-E/SN serves as a direct replacement offering extended temperature capabilities (-40°C to +125°C) while maintaining identical electrical characteristics and pinouts within the valid voltage range.

Memory IC FAQ

How does the device handle page write operations across boundaries?

If a page write command attempts to cross a physical page boundary, the data wraps around to the beginning of the current page instead of writing to the next page. Application software must prevent write operations that would attempt to cross these boundaries.

What is the function of the WP pin?

The Write-Protect (WP) pin allows the user to protect the entire array. When tied to VCC, write operations are inhibited, though read operations remain unaffected. When tied to VSS, write protection is disabled.