FT24C02A-UDR-B

Overview

The FT24C02A-UDR-B is a 2Kb (256 x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It operates within a supply voltage range of 1.8V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The device utilizes a standard two-wire I2C interface with a maximum clock frequency of 1 MHz at 5V or 400 kHz at lower voltages. Key electrical parameters include a standby current of less than 1 µA, a write cycle time of 5 ms maximum, and an endurance rating of 1,000,000 write cycles. It is housed in an 8-pin DIP package.

Feature Summary

• Supports low voltage operation ranging from 1.8V to 5.5V for diverse power environments.
• Features hardware write protection via the WP pin to prevent accidental data modification.
• Includes Schmitt trigger inputs and noise filtering to ensure signal integrity.
• Enables partial page writes and automatic erase-before-write operations.

Applications

• Data logging in industrial sensors
• Configuration storage in consumer electronics
• Parameter retention in embedded microcontroller systems

Procurement Notes

Verify that the ordering suffix matches the required package type and compliance status. Confirm the specific revision level against the manufacturer's documentation to ensure compatibility with existing designs. Check for RoHS compliance requirements if applicable to the target assembly process.

Selection Notes

Select this component when a non-volatile memory solution requires robust hardware write protection and high endurance. The U-series designation indicates eight valid address pins, allowing multiple devices on a single bus compared to the five-pin variant. Ensure the system voltage aligns with the specified 1.8V to 5.5V operating range.

Part Context

This part belongs to the FT24C02A family of serial EEPROMs designed for low-power applications. The 'U' prefix denotes the version with eight functional address pins suitable for complex bus topologies. The 'D' indicates an 8-pin DIP package, while 'R' signifies RoHS compliance and 'B' refers to tube packaging.

Replacement Considerations

FT24C02A-5DG-B

FAQ

How does the WP pin function?

Connecting the WP pin to VCC disables all programming functions, protecting the memory array. Read operations remain unaffected regardless of the WP pin state.

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

The 5xx version has only five valid pins and restricts usage to one device per bus. The Uxx version provides eight valid pins, supporting multiple devices on the same I2C bus.