FT24C02A-UNR-T

Overview

The FT24C02A-UNR-T 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. The device operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperatures from -40°C to 85°C. Key electrical parameters include a write cycle time of 5ms, access time of 550ns, and standby current under 1µA. It is housed in an 8-WFDFN package.

Feature Summary

• Supports standard two-wire bi-directional serial interface compatible with I²C bus modes.
• Includes hardware write protection via the WP pin to prevent unintended data modification.
• Features self-timed programming cycles allowing automatic erase before write operations.

Applications

• Data logging in industrial environments requiring wide temperature tolerance.
• Configuration storage for microcontroller systems operating on low power supplies.
• Parameter retention in consumer electronics utilizing I²C communication protocols.

Procurement Notes

Verify that the specific ordering suffix matches the required package type and RoHS compliance status. Confirm the manufacturer's part number against official documentation to ensure compatibility with system design requirements. Check for any recent datasheet revisions that may impact performance specifications or pin configurations.

Selection Notes

Select this component when a non-volatile memory solution with low standby current and robust noise protection is required. Ensure the application environment stays within the specified voltage and temperature limits. Consider the page write capability for efficient data handling in systems where frequent updates are necessary.

Part Context

This EEPROM belongs to the FT24C02A series, designed for low-power applications using advanced CMOS technology. The UNR-T suffix indicates an 8-lead DFN package with tape and reel packaging. It is suitable for space-constrained designs needing reliable data retention over extended periods.

Replacement Considerations

FT24C02A-UNG-T

FAQ

How does the WP pin function?

Connecting the WP pin to VCC disables all programming functions, protecting the memory array. Leaving it unconnected or at VIL allows normal read and write operations.

What is the maximum clock frequency?

The device supports up to 1 MHz at 5V supply voltage and 400 kHz at 1.8V, 2.5V, or 2.7V supply voltages.