24FC64T-I/ST

Memory IC Overview

The Microchip Technology 24FC64T-I/ST is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a two-wire serial interface compatible with I2C protocols and supports a maximum clock frequency of 1 MHz at supply voltages between 2.5V and 5.5V. The device operates within an industrial temperature range of -40°C to +85°C and utilizes low-power CMOS technology, drawing a maximum active current of 3 mA and a standby current of 1 µA. It includes a 32-byte page write buffer and hardware write protection.

Memory IC Feature Summary

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

Memory IC Applications

• Personal communications devices requiring non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Low-power embedded applications utilizing I2C interfaces

Memory IC Procurement Notes

Verify that the ordering suffix 'ST' corresponds to the TSSOP package type and tape-and-reel delivery format. Confirm the 'I' designation matches the required industrial temperature range specifications. Ensure the voltage requirements align with the 2.5V to 5.5V operational limits defined for the FC series. Cross-reference the datasheet revision to confirm compatibility with existing design parameters.

Memory IC Selection Notes

Select this component when a 1 MHz I2C interface speed is required compared to standard 400 kHz alternatives. Choose this part over the 24LC64 if operation below 2.5V is necessary, as the FC series supports down to 1.7V. Consider the TSSOP package dimensions for surface mount constraints. Evaluate the 32-byte page buffer size against application write throughput needs.

Memory IC Part Context

This device belongs to the 24XX64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA64 and 24LC64, which share similar memory architectures but differ in operating voltage ranges and maximum clock frequencies. The 24FC64 specifically targets applications requiring higher bus speeds while maintaining low power consumption.

Memory IC Replacement Considerations

The 24LC64T-I/ST serves as a functional substitute with identical memory organization and packaging, though it operates at a lower maximum clock frequency of 400 kHz. The 24AA64T-I/ST offers equivalent performance characteristics and speed capabilities.