FT24C16A-ULR-T

Overview

The FT24C16A-ULR-T is a 16Kb (2048 x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It utilizes 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. It features a 16-byte page write mode, self-timed write cycles of 5ms maximum, and high endurance ratings. The component is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Supports standard two-wire bi-directional serial communication via SDA and SCL pins.
• Includes hardware data protection through a dedicated Write Protect pin.
• Features automatic erase-before-write functionality for reliable data storage.
• Operates across a wide voltage spectrum suitable for low-power applications.

Applications

• Data logging systems requiring non-volatile memory retention
• Configuration storage for embedded microcontrollers
• Calibration parameter storage in consumer electronics

Procurement Notes

Verify the specific ordering suffix 'ULR' corresponds to the SOT-23-5 package and tape-and-reel packaging configuration. Confirm RoHS compliance status matches project requirements. Ensure the selected variant aligns with the required operating temperature range and voltage specifications before finalizing procurement orders.

Selection Notes

Select this component when a 16Kb capacity is required in a minimal footprint. The SOT-23-5 package offers space efficiency compared to larger DIP or SOP options. Consider the single-device bus limitation inherent to the 16Kb architecture when designing multi-device I²C networks.

Part Context

This part belongs to the FT24C16A series of serial EEPROMs from Fremont Micro Devices. The series provides various package options including DIP, SOP, TSSOP, DFN, MSOP, and SOT-23 variants. The FT24C16A specifically organizes memory as 2048 words of 8 bits each, distinguishing it from the 4Kb and 8Kb counterparts in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative manufacturers offering similar I²C EEPROM specifications.

FAQ

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

Only one FT24C16A device can be used on a single 2-wire bus because all device address pins (A2, A1, A0) are internally no-connects and cannot be configured for addressing.

What is the function of the Write Protect (WP) pin?

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