FT24C02A-UMR-B

Overview

The FT24C02A-UMR-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. The device operates within a supply voltage range of 1.8V to 5.5V and supports an industrial temperature range of -40°C to +85°C. Key electrical parameters include a standby current of less than 1µA, a write cycle time of 5ms maximum, and access times of 550ns. It utilizes a TSSOP-8 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 unauthorized programming.
• Features 16-byte page write mode allowing partial or full page operations.
• Provides high reliability with typically 1,000,000 write cycles endurance.

Applications

• Data storage in low power consumer electronics
• Configuration memory for microcontroller systems
• Industrial control system parameter logging

Procurement Notes

Verify the specific ordering suffix 'UMR-B' against the manufacturer's official documentation to confirm the exact package type (DFN8), RoHS compliance status, and tape-and-reel packaging configuration. Ensure the component matches the required industrial temperature range (-40°C to +85°C) and voltage specifications for your design.

Selection Notes

Select this component when a 2Kb non-volatile memory solution is required with I²C connectivity. The Uxx version variant provides all eight pins for address selection, making it suitable for applications requiring multiple devices on the same bus. Consider the 1.8V to 5.5V operating range for compatibility with various logic levels.

Part Context

The FT24C02A series consists of 2K-bit serial electrically erasable programmable read-only memories. Manufactured using advanced CMOS technology, these devices are optimized for low power consumption. The series offers multiple package options including DIP, SOIC, TSSOP, DFN, and SOT-23 variants to accommodate different board space constraints.

Replacement Considerations

FT24C02A-UNR-T

FAQ

What is the function of the WP pin?

The Write Protect (WP) pin protects the entire EEPROM array from programming. Programming is disabled when WP is connected to VCC or VIH, while read operations remain unaffected.

How does the FT24C02A-Uxx version differ from the -5xx version?

The FT24C02A-Uxx version has 8 valid pins suitable for all applications, whereas the -5xx version has only 5 valid pins and is limited to single-device bus configurations.