24LC512T-E/ST

Memory IC Overview

The Microchip Technology 24LC512T-E/ST is a 512 Kbit Electrically Erasable PROM organized as 64K x 8-bit memory. It operates on a single supply voltage ranging from 2.5V to 5.5V and supports a maximum clock frequency of 400 kHz via a two-wire I²C compatible serial interface. The device features an access time of 900 ns, a page write time of 5 ms maximum, and utilizes an 8-lead TSSOP package. It is rated for industrial temperature ranges spanning from -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address inputs.
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.
• Features a 128-byte page write buffer for efficient data transfer operations.
• Provides hardware write protection through the WP pin to inhibit array writes.

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Parameter retention in consumer electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'E' confirms extended temperature operation (-40°C to +85°C) and 'ST' specifies the 8-lead Tape & Reel TSSOP package. Confirm the datasheet revision matches the required electrical specifications for the 24LC512 series before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 512 Kbit non-volatile memory solution with I²C interface is required. Ensure the system voltage remains within the 2.5V to 5.5V range. Consider the 8-lead TSSOP form factor for surface mount assembly constraints and verify that the 400 kHz clock speed meets the host controller's timing requirements.

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 minimum operating voltage and maximum clock frequency capabilities while sharing similar functional architectures and pinouts.

Memory IC Replacement Considerations

Compatible substitutes include other 24LC512 variants such as 24LC512-I/ST or 24LC512-E/SN, provided the package type and temperature grade align with the design requirements. Cross-referencing specific electrical characteristics against the target application is recommended.

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 supports a page write capability of up to 128 bytes. Writing across physical page boundaries causes data to wrap around to the beginning of the current page.