24FC128-I/P

Memory IC Overview

The Microchip Technology 24FC128-I/P is a 128 Kbit (16K x 8) serial electrically erasable PROM featuring an I2C compatible interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 1 MHz at voltages of 2.5V or higher, with 400 kHz compatibility down to 1.7V. The device utilizes low-power CMOS technology, offering a maximum write current of 3 mA and standby current of 1 µA in industrial temperature ranges (-40°C to +85°C). It includes a 64-byte page write buffer, hardware write-protect functionality via the WP pin, and Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

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

Memory IC Applications

• Personal communications systems requiring non-volatile data storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems utilizing I2C communication protocols

Memory IC Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature grade. Ensure the selected variant matches the required operating voltage range and clock frequency specifications for the target application environment. Confirm RoHS compliance status if restricted substances are a constraint.

Memory IC Selection Notes

Select this component for designs requiring broad voltage operation starting at 1.7V and high-speed I2C communication up to 1 MHz. Consider the PDIP-8 package for through-hole mounting requirements. Evaluate the need for hardware write protection and multi-device bus addressing capabilities inherent to this memory architecture.

Memory IC Part Context

This part belongs to the 24XX128 family of serial EEPROMs, which also includes the 24AA128 and 24LC128 variants. These devices share similar functional architectures but differ in minimum operating voltage and maximum clock frequency specifications. The 24FC128 specifically offers the widest voltage range and highest speed within this group.

Memory IC Replacement Considerations

Direct substitutes include other 24FC128 variants with different packages such as SOIC-8 or MSOP-8. Cross-family replacements like 24AA128 or 24LC128 require verification of voltage and speed compatibility.