SN74F543DWE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F543DWE4 is an octal bus transceiver from the Texas Instruments SN74F series, housed in a 24-pin SOIC package. It features non-inverting logic with three-state outputs and includes internal latching functionality to hold data states. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. Key electrical parameters include a maximum propagation delay of 7.5 ns, a low-level output current capability of 64 mA, and a high-level output current of -15 mA. It is designed for surface-mount installation and functions reliably across an operating temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data paths
• Integrated latching mechanism to maintain data states independently of input signals
• Three-state outputs allowing direct connection to system buses without additional drivers

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data acquisition systems requiring signal buffering and storage
• Memory mapping circuits utilizing latch-based address or data registers
• Industrial control interfaces managing multiple parallel data lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the E4 suffix indicates lead-free construction compliant with RoHS standards. Confirm the specific SOIC-24 package dimensions match the target PCB footprint. Ensure the 4.5 V to 5.5 V supply requirement aligns with the system power architecture before integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when design requirements demand both bus driving capability and data retention within a single integrated circuit. The F-series technology offers a balance of speed and drive strength suitable for standard digital logic applications. Consider the thermal performance of the SOIC package if operating near the upper temperature limit.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the broader SN74F family of high-speed CMOS logic devices. It shares functional similarities with other octal transceivers but distinguishes itself through the inclusion of internal latches. The DWE4 designation specifies the lead-free variant of the standard SN74F543DW component.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74F543DW serves as the primary equivalent part number. Verify that any substitute maintains the same latched transceiver functionality and pinout compatibility.