24FC128-I/MF

Memory IC Overview

The Microchip Technology 24FC128-I/MF 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 I2C compatible two-wire serial interface communication at clock frequencies up to 1 MHz. The device features a 64-byte page write buffer, hardware write-protect capability, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead DFN package and is rated for industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Supports high-speed I2C communication with clock frequencies reaching 1 MHz under specified voltage conditions.
• Includes a 64-byte page write buffer to optimize data writing efficiency.
• Provides hardware write protection via the WP pin to secure memory arrays.
• Features Schmitt trigger inputs designed to suppress noise spikes on the bus lines.

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Industrial control applications utilizing I2C bus architectures

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the 8-lead DFN package type. Confirm the temperature grade matches the required industrial range of -40°C to +85°C. Ensure the voltage operating range aligns with the system's power supply capabilities, specifically noting the 1.7V minimum threshold for this device variant.

Memory IC Selection Notes

Select this component when a 128 Kbit EEPROM is required with high-speed I2C support down to 1.7V. The 8-lead DFN package offers a compact footprint suitable for space-constrained designs. Consider the hardware write-protect feature if physical security against accidental writes is necessary within the application circuit.

Memory IC Part Context

This part belongs to the 24XX128 family, which includes the 24AA128 and 24LC128 variants. The 24FC128 distinguishes itself by supporting higher clock speeds up to 1 MHz compared to the 400 kHz limit of other family members at similar voltages. All variants share identical pinouts and functional protocols, differing primarily in speed and voltage specifications.

Memory IC Replacement Considerations

Direct substitutes include the 24AA128-I/MF and 24LC128-I/MF. Note that these alternatives are limited to 400 kHz maximum clock frequency. Verify package compatibility and ensure the lower speed meets the system timing requirements before substitution.