74F543SC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74F543SC is an octal registered transceiver housed in a 24-lead Small Outline Integrated Circuit (SOIC) package. It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of 0°C to +70°C. The device features two sets of D-type latches with separate controls for data flow direction. A outputs sink 24 mA, while B outputs sink 64 mA. Propagation delays range from 3.0 ns to 12.5 ns depending on the mode.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Contains two sets of eight D-type latches for temporary data storage
• Provides separate Latch Enable and Output Enable inputs for independent control
• Supports bidirectional data flow between A and B ports

Buffers, Drivers, Receivers, Transceivers Applications

• Octal bus transceivers
• Data storage applications requiring back-to-back registers
• Bidirectional data flow control systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix against the manufacturer's current documentation to ensure correct package type. Confirm that the component meets all required environmental and electrical specifications for the intended application before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal registered transceiver with asymmetric output drive capabilities is required. Ensure the design accommodates the distinct current sinking ratings for A and B outputs and utilizes the separate enable controls for precise data flow management.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74F logic family, characterized by high-speed performance. It is manufactured by Fairchild Semiconductor, which has since been acquired by onsemi. The device serves as a standard solution for interfacing between different logic families or managing data buses in digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74F543DW from Texas Instruments and SN74F543NSR from National Semiconductor. Verify pin compatibility and electrical characteristics before substitution.

Buffers, Drivers, Receivers, Transceivers FAQ

What are the output drive capabilities of the A and B ports?

The A outputs are guaranteed to sink 24 mA, while the B outputs are rated for 64 mA.

How is data flow controlled in the 74F543SC?

Data flow is controlled using separate CEAB/CEBA, LEAB/LEBA, and OEAB/OEBA inputs, allowing independent control of inputting and outputting in either direction.