24LC128-I/MF

Memory IC Overview

The Microchip Technology 24LC128-I/MF is a 16K x 8 (128 Kbit) serial electrically erasable PROM (EEPROM). It operates on a single supply voltage ranging from 2.5V to 5.5V and features an I2C compatible two-wire serial interface with a maximum clock frequency of 400 kHz. The device supports page write operations up to 64 bytes, has a maximum write cycle time of 5 ms, and offers data retention exceeding 200 years. It is housed in an 8-lead SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address inputs for expanded addressing.
• Includes Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Features a hardware write-protect pin that inhibits write operations when tied to VCC while maintaining read access.

Memory IC Applications

• Personal communications systems requiring low-power non-volatile storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems operating within specified temperature ranges

Memory IC Procurement Notes

Verify the specific suffix 'I/MF' corresponds to the Industrial temperature grade (-40°C to +85°C) and the 8-lead SOIC package format. Confirm the device meets RoHS compliance requirements for your assembly process. Ensure the ordering documentation explicitly references the 24LC128 series specifications rather than the broader 24XX128 generic family data.

Memory IC Selection Notes

Select this component when a 128 Kbit capacity is required with a standard I2C interface. The 2.5V minimum supply voltage distinguishes it from lower-voltage variants like the 24AA128. The industrial temperature rating makes it suitable for environments where extended thermal stability is necessary compared to commercial grade parts.

Memory IC Part Context

This part belongs to the 24XX128 family, which includes the 24AA128 and 24FC128. While sharing identical memory architecture and interface protocols, the 24LC128 variant is specifically optimized for operation starting at 2.5V, whereas other family members support lower voltages or higher clock speeds depending on the supply conditions.

Memory IC Replacement Considerations

Direct replacements include the 24LC128T-I/MF for tape-and-reel packaging or the 24LC128-I/SN for alternative narrow SOIC dimensions. Cross-family substitutes like the 24AA128-I/MF offer compatibility but differ in minimum operating voltage specifications.