FT24C08A-USR-B

Overview

The FT24C08A-USR-B is an 8K-bit (1024 x 8) serial EEPROM from Fremont Micro Devices Ltd, utilizing a standard two-wire I2C interface. It operates within a supply voltage range of 1.8V to 5.5V and supports clock frequencies up to 1 MHz at 5V or 400 kHz at lower voltages. The device features hardware write protection via the WP pin, self-timed write cycles with automatic erase before write, and partial page write capabilities. It is housed in an 8-pin SOP package and functions within an industrial temperature range of -40°C to 85°C.

Feature Summary

• Supports low-voltage operation across a wide supply range for diverse application environments.
• Includes hardware write protection to secure memory arrays against unauthorized programming.
• Enables efficient data handling through 16-byte page write modes and partial page operations.

Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention in sensor modules

Procurement Notes

Verify that the ordering suffix 'B' corresponds to tube packaging as specified in the manufacturer's documentation. Confirm RoHS compliance status matches project requirements. Ensure the SOP-8 package dimensions align with PCB footprint constraints. Validate that the industrial temperature rating meets environmental specifications.

Selection Notes

Select this component when an 8K-bit capacity is required on a two-wire bus with limited address pins. The FT24C08A allows only two devices on the same bus due to its single address pin configuration. Consider the 1.8V minimum operating voltage for battery-powered designs. Verify that the 5ms maximum write cycle time fits system timing requirements.

Part Context

This part belongs to the FT24C04A/08A/16A series of serial EEPROMs. It shares the same core architecture and interface protocols as the 4K and 16K variants but offers intermediate storage density. The series utilizes advanced CMOS technology for low power consumption and high reliability.

Replacement Considerations

FT24C08A-USG-B

FAQ

How many FT24C08A devices can be connected to a single I2C bus?

Only two FT24C08A devices can be wired-OR on the same bus because it uses only one chip select address pin (A2).

What is the function of the WP pin?

The Write Protect (WP) pin disables all programming functions when connected to VIL or VIH, protecting the memory array while allowing read operations.