24LC128-E/MF

Memory IC Overview

The Microchip Technology 24LC128-E/MF is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates with a supply voltage range of 2.5V to 5.5V and supports I2C compatible two-wire serial interface at clock frequencies up to 400 kHz. The device features a 64-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead DFN-S package and rated for extended temperature operation from -40°C to +125°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using configurable chip address inputs A0, A1, and A2.
• Includes hardware write protection that inhibits write operations when the WP pin is tied to VCC.
• Features output slope control designed to eliminate ground bounce during switching.

Memory IC Applications

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems operating in extended temperature environments

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm the voltage range aligns with system requirements, as the LC variant specifies a minimum of 2.5V. Ensure compatibility with existing I2C bus protocols and check for any recent product change notifications regarding assembly sites or materials.

Memory IC Selection Notes

Select this component for applications requiring robust data retention over extended industrial temperatures. The 24LC128 series is distinct from the 24AA128 due to its higher minimum operating voltage. Consider the DFN-S package for space-constrained surface mount designs while ensuring adequate thermal management for the exposed pad if connected to ground.

Memory IC Part Context

This part belongs to the 24XX128 family, which includes the 24AA128, 24LC128, and 24FC128. These devices share similar functional architectures but differ in operating voltage ranges and maximum clock speeds. The 24LC128 specifically targets standard voltage applications within the broader low-power EEPROM portfolio.

Memory IC Replacement Considerations

Direct substitutes include other 24LC128 variants with different packages such as 24LC128-E/SN or 24LC128T-E/MNY. Cross-family replacements like the 24AA128 offer lower voltage operation but require verification of voltage level compatibility.