24LC256T-I/MNY

Memory IC Overview

The Microchip Technology 24LC256T-I/MNY 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 8-lead TDFN package with exposed pad, suitable for surface mount applications. It provides hardware write protection, a 64-byte page write buffer, and high endurance exceeding one million erase/write cycles.

Memory IC Feature Summary

• Supports bidirectional data transfer via a standard two-wire serial bus protocol compatible with I²C.
• Includes a hardware write-protect pin that inhibits write operations when tied to VCC.
• Features a 64-byte page write buffer to optimize sequential data writing efficiency.
• Provides robust electrostatic discharge protection exceeding 4000V on all pins.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communication devices needing low-power memory
• Industrial control units utilizing I²C bus architectures

Memory IC Procurement Notes

Verify the specific suffix 'MNY' corresponds to the 8-lead TDFN package configuration. Confirm the temperature grade 'I' matches industrial requirements (-40°C to +85°C). Ensure the voltage supply aligns with the 2.5V minimum specification for the 24LC256 series. Check RoHS compliance status for environmental regulations.

Memory IC Selection Notes

Select this component for designs requiring 256-Kbit capacity with I²C connectivity. The 24LC256 variant specifically requires a minimum operating voltage of 2.5V, unlike the 24AA256 which supports lower voltages. Consider the TDFN package dimensions for PCB layout constraints. Verify address pin configurations if multiple devices share the same bus.

Memory IC Part Context

This part belongs to the 24XX256 family of serial EEPROMs from Microchip Technology. The family includes variants like 24AA256 and 24FC256, distinguished by voltage ranges and maximum clock speeds. The 24LC256 is optimized for standard 2.5V to 5.5V operation with 400 kHz support.

Memory IC FAQ

How many devices can be connected to the same I²C bus using the 24LC256T-I/MNY?

Up to eight devices can be cascaded on the same bus by configuring the A0, A1, and A2 chip select pins to different logic levels.

What is the function of the WP pin on the 24LC256T-I/MNY?

The Write-Protect (WP) pin disables write operations when connected to VCC. When connected to VSS, write operations are enabled.