24FC64-I/SN

Memory IC Overview

The Microchip Technology 24FC64-I/SN is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a two-wire I2C compatible serial interface with a maximum clock frequency of 1 MHz at VCC ≥ 2.5V, and 400 kHz at VCC < 2.5V. The device operates on a single supply voltage ranging from 1.7V to 5.5V. It supports page write operations with a 32-byte buffer and includes hardware write protection via the WP pin. The component is housed in an 8-lead SOIC package and is rated for industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Supports high-speed 1 MHz clock frequency for efficient data transfer
• Includes a 32-byte page write buffer to optimize write performance
• Provides hardware write protection through the dedicated WP pin
• Features Schmitt trigger inputs for enhanced noise suppression

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention in measurement instruments

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the 8-lead SOIC package type. Confirm the temperature grade matches the required industrial range of -40°C to +85°C. Ensure the voltage supply design accommodates the 1.7V to 5.5V operating window. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Memory IC Selection Notes

Select this part when a 64-Kbit capacity is sufficient for the application requirements. Choose this model over variants with lower clock speeds if system timing demands faster bus communication. Consider the SOIC package dimensions against available PCB real estate. Evaluate the need for hardware write protection versus software-based locking mechanisms.

Memory IC Part Context

This component belongs to the 24XX64 family of serial EEPROMs manufactured by Microchip Technology. The 'FC' designation indicates support for higher clock frequencies compared to standard variants. The 'I' suffix specifies the industrial temperature rating. The 'SN' suffix identifies the specific 8-lead Small Outline Integrated Circuit package geometry.

Memory IC Replacement Considerations

Direct replacements within the same datasheet include the 24AA64 and 24LC64. Note that the 24AA64 shares the 1.7V low-voltage capability but is limited to 400 kHz. The 24LC64 requires a minimum of 2.5V and also operates at 400 kHz. Verify package compatibility when substituting.