24FC64F-I/P

Memory IC Overview

The Microchip Technology 24FC64F-I/P is a 64 Kbit (8K x 8-bit) Electrically Erasable PROM featuring a 2-wire serial I²C™ compatible interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 1 MHz at VCC ≥ 2.5V, reducing to 400 kHz below 2.5V. The device supports industrial temperature ranges (-40°C to +85°C), includes a 32-byte page write buffer, and offers hardware write-protect for the upper quarter-array (addresses 1800h-1FFFh). It utilizes low-power CMOS technology with standby current of 1 µA max.

Memory IC Feature Summary

• Supports high-speed 1 MHz clock operation for efficient data transfer in compatible systems.
• Provides hardware-based write protection for the upper quarter of the memory array via the WP pin.
• Enables cascading up to eight devices on a single bus using three dedicated chip address inputs.
• Incorporates Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.

Memory IC Applications

• Personal communication devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I²C bus architecture

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and '/P' indicates the 8-Lead PDIP package. Confirm the specific revision of datasheet DS22154B matches the component batch. Ensure system voltage levels remain within the 1.7V to 5.5V operational window to maintain specified electrical characteristics and timing parameters.

Memory IC Selection Notes

Select this component when a 64 Kbit EEPROM with 1 MHz I²C speed is required. The 24FC64F differs from the 24AA64F and 24LC64F primarily by its higher clock frequency capability. Ensure the application can accommodate the 32-byte page write buffer limitations and that the hardware write-protect feature aligns with security requirements for the upper memory segment.

Memory IC Part Context

This part belongs to the 24XX64F family of 64 Kbit serial EEPROMs from Microchip Technology. It shares functional similarities with the 24AA64F and 24LC64F but is distinguished by its support for 1 MHz clock speeds. The family is designed for advanced low-power applications, offering robust ESD protection and long data retention capabilities across various surface mount and through-hole packages.

Memory IC Replacement Considerations

The 24AA64F and 24LC64F are functionally similar but limited to 400 kHz clock speeds. Substitution requires verifying that the system controller supports the lower bus speed or that the performance difference is acceptable. Pinouts and command sets remain identical across the 24XX64F family.