SN74F543DWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F543DWG4 is an octal bus transceiver from the Texas Instruments SN74F series. It features non-inverting logic with three-state outputs and integrated latching capability. The device operates within a supply voltage range of 4.5 V to 5.5 V, supporting TTL input and output levels. Key electrical parameters include a maximum propagation delay of 7.5 ns, a low-level output current of 64 mA, and a high-level output current of -15 mA. It is housed in a 24-pin SOIC package and functions within an operating temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent data channels for parallel bus interfacing
• Integrated latch function allows data storage at the outputs while isolating inputs
• Three-state outputs enable direct connection to system buses without additional drivers

Buffers, Drivers, Receivers, Transceivers Applications

• Parallel data buffering on microprocessor-based systems
• I/O port expansion for digital control circuits
• Bus-oriented memory and relay driver applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the G4 suffix indicates compliance with specific environmental directives. Confirm the SOIC-24 package dimensions match the design footprint. Ensure the 0°C to +70°C commercial temperature rating meets the operational requirements. Cross-reference the datasheet revision to confirm pinout consistency with existing schematics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with internal latching is required for 5V logic systems. The F series offers a balance of speed and drive strength suitable for general-purpose digital interfaces. Consider the SOIC-24 package for surface-mount assembly constraints. Verify that the 7.5 ns delay is sufficient for the target clock frequencies.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74F family of high-speed CMOS logic devices. The '543' designation specifically identifies it as an octal bus transceiver with latches. The 'DW' suffix denotes the 24-pin wide SOIC package, while 'G4' signifies lead-free construction and RoHS compliance. It serves as a standard interface solution for 8-bit data paths.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74F543DW is the non-green equivalent. SN74F543N is the PDIP alternative. SN74F543NSR is the tape-and-reel variant.