FT24C256A-USG-T

Overview

The FT24C256A-USG-T is a 256Kbit (32K x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It utilizes an I²C interface with a maximum clock frequency of 1 MHz and features a 550 ns access time. The device operates within a supply voltage range of 1.8V to 5.5V and supports surface mount installation in an 8-SOP package. It includes a self-timed write cycle of 5 ms and functions across an industrial temperature range of -40°C to 85°C.

Feature Summary

• Supports standard two-wire bi-directional serial communication via I²C protocol
• Provides hardware data protection through a dedicated write protect pin
• Features internally organized memory architecture for efficient data management

Applications

• Data acquisition systems requiring non-volatile storage
• Personal communications devices needing low-power memory solutions
• Industrial control units operating in wide voltage environments

Procurement Notes

Verify the specific suffix 'USG-T' corresponds to the 8-SOP package and tape & reel packaging configuration. Confirm that the manufacturer designation matches Fremont Micro Devices Ltd, as generic listings may not reflect the exact component revision or regional manufacturing origin. Ensure compatibility with existing board layouts for SOIC-8 footprints.

Selection Notes

Select this component when a 256Kbit capacity is required alongside a 1 MHz I²C bus speed. The 1.8V to 5.5V operating range allows flexibility in power supply design compared to fixed-voltage alternatives. Consider the 8-SOP package dimensions for space-constrained printed circuit board designs where surface mount technology is preferred over through-hole options.

Part Context

This part belongs to the FT24C256A series of serial EEPROMs from Fremont Micro Devices. It shares functional similarities with other industry-standard 24C256 devices but is distinguished by its specific package type and electrical characteristics defined by the manufacturer. The series targets applications demanding reliable non-volatile data retention in compact electronic assemblies.

Replacement Considerations

Compatible substitutes include the Microchip 24FC256IMF and 24LC256 series, which offer similar 256Kbit capacities and I²C interfaces. Verify pinout compatibility and voltage ranges before substitution to ensure seamless integration into existing circuits without hardware modifications.