FT24C02A-USG-B

Overview

The FT24C02A-USG-B is a 2Kb (256 x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It features an I²C interface with a maximum clock frequency of 1 MHz at 5V and 400 kHz at lower voltages. Operating voltage ranges from 1.8V to 5.5V within an industrial temperature range of -40°C to +85°C. The device utilizes an 8-pin SOP package, supports page writes of up to 16 bytes, and includes hardware write protection via the WP pin.

Feature Summary

• Supports standard two-wire bi-directional serial interface compatible with I²C bus modes
• Includes hardware write protection pin for data security
• Features Schmitt trigger inputs for noise immunity
• Provides automatic erase before write operation

Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics utilizing low power memory
• Communication equipment needing reliable parameter retention

Procurement Notes

Verify the specific ordering suffix 'USG-B' corresponds to the Green Package in Tube format as defined in the manufacturer's order code table. Confirm that the component meets RoHS compliance requirements if mandated by your assembly process. Ensure the supply voltage matches the 1.8V to 5.5V operational range specified in the datasheet.

Selection Notes

Select this component when an 8-pin surface mount solution is required for I²C communication. The USG variant provides eight valid pins suitable for all applications, unlike the five-pin version which limits multi-device bus configurations. Consider the 16-byte page write capability for efficient data throughput in embedded systems.

Part Context

This part belongs to the FT24C02A family of serial EEPROMs designed for low voltage and low power operations. The series offers various packaging options including DIP, SOIC, TSSOP, DFN, and SOT-23. The FT24C02A-USG-B specifically denotes the SOP8 package configuration with green compliant materials.

Replacement Considerations

FT24C02A-UTG-B

FAQ

What is the difference between the FT24C02A-5xx and FT24C02A-Uxx versions?

The FT24C02A-5xx version has only 5 valid pins and is limited to single-device I²C bus applications. The FT24C02A-Uxx version, such as the USG-B, has 8 valid pins and is suitable for all applications, including those with multiple EEPROMs on the same bus.

How does the Write Protect (WP) pin function?

The WP pin protects the entire EEPROM array from programming. Programming is allowed if the pin is unconnected or at VIL. All programming functions are disabled if the pin is connected to VIH or VCC, while read operations remain unaffected.