24FC128-I/MS

Memory IC Overview

The Microchip Technology 24FC128-I/MS is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates with a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 1 MHz at VCC ≥ 2.5V, or 400 kHz at VCC < 2.5V. The device features a two-wire I2C compatible serial interface and utilizes an 8-lead MSOP package. It includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address lines A0, A1, and A2.
• Includes hardware write protection via the WP pin to inhibit write operations while maintaining read access.
• Features a 64-byte page write buffer allowing efficient sequential data storage.

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the MSOP package type. Confirm the temperature grade 'I' matches the required industrial operating range of -40°C to +85°C. Ensure the voltage supply in the target application falls within the 1.7V to 5.5V operational limits specified for the 24FC128 series.

Memory IC Selection Notes

Select this component when high-speed 1 MHz I2C communication is required at voltages above 2.5V. The MSOP package is suitable for space-constrained surface mount designs. Note that pins A0 and A1 are not connected in the MSOP package, limiting bus expansion to two devices compared to other packages.

Memory IC Part Context

This part belongs to the 24XX128 family, which also includes the 24AA128 and 24LC128. The 24FC128 is distinguished by its support for 1 MHz clock speeds at higher voltages, whereas the 24LC128 is limited to 400 kHz. All variants share the same 128 Kbit capacity and general interface protocols.

Memory IC Replacement Considerations

Direct substitutes within the same package include the 24FC128T-I/MS. Other family members like the 24AA128-I/MS or 24LC128-I/MS offer electrical compatibility but differ in maximum clock frequency specifications.