FT24C08A-ULR-T

Overview

The FT24C08A-ULR-T is an 8Kbit (1024 x 8) serial EEPROM from Fremont Micro Devices Ltd, housed in a 5-lead SOT-23 package. It operates on a standard two-wire I2C interface with a supply voltage range of 1.8V to 5.5V. The device supports clock frequencies up to 1 MHz at 5V and 400 kHz at lower voltages. Key electrical parameters include a maximum write cycle time of 5 ms, standby current under 1 µA, and an industrial operating temperature range of -40°C to 85°C.

Feature Summary

• Supports 16-byte page write operations with partial page write capability.
• Includes a dedicated hardware write protect pin for data security.
• Features Schmitt trigger inputs and noise filtering for signal integrity.
• Provides automatic erase-before-write functionality.

Applications

• Low power embedded systems requiring non-volatile storage
• Industrial control units operating within extended temperature ranges
• Consumer electronics utilizing I2C bus architectures

Procurement Notes

Verify the specific ordering suffix 'ULR' confirms the SOT-23-5 package and tape-and-reel packaging format. Ensure compatibility with the required RoHS compliance standards. Confirm that the selected variant matches the intended voltage and temperature specifications for your application environment before finalizing procurement orders.

Selection Notes

Select this component when a compact surface-mount solution is required for 8Kbit data retention. The SOT-23-5 package offers space efficiency compared to larger DIP or SOP options. Consider the 1.8V to 5.5V operating range for flexibility in various power supply designs. Verify that the single-device limit on the I2C bus aligns with system addressing requirements.

Part Context

This part belongs to the FT24C08A series of Two-Wire Serial EEPROMs manufactured by Fremont Micro Devices Ltd. The series includes 4K, 8K, and 16K bit variants sharing similar interface protocols and features. The FT24C08A specifically provides 1024 words of 8-bit memory organized into pages for efficient data management.

Replacement Considerations

FT24C08A-UPR-T

FAQ

How many devices can be addressed on a single I2C bus?

Only one FT24C08A device can be used on a single 2-wire bus because all chip select address pins are not used.

What is the function of the WP pin?

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