Texas Instruments

SN74F543DBR

SN74F543DBR Description

The SN74F543DBR from Texas Instruments is a high-performance, 8-bit non-inverting transceiver designed for bidirectional data communication between buses. Operating within a 4.5V to 5.5V supply range, this device is part of the 74F series, known for its fast switching speeds and robust output drive capabilities. Housed in a 24-pin SSOP package, it is optimized for surface-mount applications and complies with ROHS3 and REACH environmental standards. With an operating temperature range of 0°C to 70°C, it is suitable for commercial-grade applications. The device features 3mA high-level and 24mA low-level output currents, ensuring reliable signal integrity in demanding environments.

SN74F543DBR Features

• Bidirectional 8-bit transceiver with non-inverting outputs for seamless data transfer.
• Wide voltage supply range (4.5V–5.5V), compatible with standard TTL logic levels.
• High output drive capability: Supports 15mA (high) and 64mA (low) for robust bus interfacing.
• Surface-mount 24-SSOP package, ideal for space-constrained PCB designs.
• Fast propagation delay, ensuring high-speed data transmission.
• Low power consumption, making it energy-efficient for portable and embedded systems.
• Moisture Sensitivity Level (MSL) 1, suitable for extended storage and handling.

SN74F543DBR Applications

The SN74F543DBR excels in applications requiring bidirectional data buffering and level translation, such as:

• Microprocessor/microcontroller interfacing for bus isolation and signal conditioning.
• Data communication systems, including UART, SPI, and parallel bus architectures.
• Industrial control systems, where reliable signal integrity is critical.
• Embedded systems and portable electronics, leveraging its low-power operation.
• Automotive infotainment and telematics, due to its robust output drive and noise immunity.

Conclusion of SN74F543DBR

The SN74F543DBR stands out as a versatile, high-speed transceiver with superior drive strength and compatibility with standard logic families. Its non-inverting architecture, wide voltage range, and compact packaging make it an excellent choice for designers seeking reliability in data communication, industrial, and embedded systems. Texas Instruments' reputation for quality ensures this device meets stringent performance and environmental standards, making it a dependable solution for modern electronic designs.