24FC64F-I/ST

Memory IC Overview

The Microchip Technology 24FC64F-I/ST is a 64-Kbit (8K x 8) serial EEPROM utilizing an I2C-compatible Two-Wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 1 MHz at VCC ≥ 2.5V, with 400 kHz operation down to 1.7V. The device features a 32-byte page write buffer, hardware write protection for the upper quarter of the array (addresses 1800h-1FFFh), and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead TSSOP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed 1 MHz clock frequency for efficient data transfer
• Includes hardware write protection for the upper quarter of the memory array
• Features low-power CMOS technology with minimal standby current consumption
• Provides output slope control to eliminate ground bounce during switching

Memory IC Applications

• Personal communication devices requiring non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers managing configuration settings via I2C bus

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and '/ST' indicates the 8-TSSOP package. Confirm the specific voltage requirements align with the 1.7V to 5.5V operational range. Ensure compatibility with the host system's I2C bus speed, noting that 1 MHz operation requires VCC ≥ 2.5V. Check for RoHS compliance status as specified in the manufacturer documentation.

Memory IC Selection Notes

Select this component when high-speed 1 MHz I2C communication is required alongside low-voltage operation down to 1.7V. It is suitable for applications needing hardware write protection for critical data segments without software overhead. Consider the 8-TSSOP package constraints and ensure the design accommodates the 32-byte page write boundary limitations to prevent data overwrite errors.

Memory IC Part Context

This part belongs to the 24AA64F/24LC64F/24FC64F family of 64-Kbit serial EEPROMs. The 'FC' designation specifically denotes the high-speed variant capable of 1 MHz operation, distinguishing it from the standard 400 kHz versions. All family members share identical pinouts and basic functionality but differ in maximum clock frequency and minimum operating voltage thresholds.

Memory IC Replacement Considerations

Direct functional substitutes within the same family include the 24AA64F-I/ST and 24LC64F-I/ST. Note that these alternatives are limited to a maximum clock frequency of 400 kHz. Verify that the lower speed meets the system timing requirements before substitution.