24LC256T-E/MS

Memory IC Overview

The Microchip Technology 24LC256T-E/MS is a 256 Kbit (32K x 8) serial EEPROM featuring an I²C-compatible two-wire interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device utilizes an MSOP-8 surface-mount package with extended temperature ratings from -40°C to +125°C. Key electrical characteristics include a maximum write current of 3 mA, standby current of 1 µA, and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus for expanded address space
• Includes Schmitt trigger inputs for enhanced noise suppression
• Features hardware write protection via the WP pin
• Provides output slope control to eliminate ground bounce

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

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 matches the required extended temperature range (-40°C to +125°C). Ensure the MSOP-8 package variant aligns with PCB footprint requirements. Cross-reference the specific revision level in the datasheet against manufacturing notices.

Memory IC Selection Notes

Select this component when a 256 Kbit capacity is required with I²C connectivity. The 2.5V minimum operating voltage distinguishes it from the 1.7V capable 24AA256 series. The MSOP-8 package offers a compact surface-mount solution suitable for space-constrained designs requiring robust noise immunity through Schmitt triggers.

Memory IC Part Context

This part belongs to the 24XX256 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA256 and 24FC256, which differ primarily in operating voltage ranges and maximum clock speeds. The 24LC256 specifically targets standard 2.5V to 5.5V applications.

Memory IC Replacement Considerations

Direct substitutes within the same package and specifications include the 24LC256-I/MS for industrial temperature ranges. Other compatible packages in the series are 24LC256-E/P or 24LC256-E/SM.