74ABT543CSC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT543CSC is an octal registered transceiver featuring three-state outputs, 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 a free air ambient temperature range of -40°C to +85°C. The device incorporates two sets of D-type latches for temporary data storage, allowing bidirectional data flow with separate latch enable and output enable inputs for independent control. Propagation delays from A to B or B to An are specified between 1.5 ns and 4.8 ns under standard conditions. Output current capabilities include sourcing up to 32 mA and sinking up to 64 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Back-to-back registers provide temporary storage for data flowing in either direction.
• Bidirectional data path allows independent control of inputting and outputting via separate enable inputs.
• High impedance glitch-free bus loading is maintained during the entire power-up and power-down cycle.
• Nondestructive hot insertion capability ensures safe operation during live circuit connections.

Buffers, Drivers, Receivers, Transceivers Applications

• Data storage applications requiring temporary holding of bidirectional data streams.
• Bus systems utilizing registered transceivers for signal integrity.
• Hot insertion scenarios where nondestructive connection is required.
• Applications demanding guaranteed simultaneous switching noise levels.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the component matches the specific 24-lead SOIC package configuration designated by the M24B package number. Confirm that the operational environment remains within the specified -40°C to +85°C temperature range and that the supply voltage stays strictly between +4.5V and +5.5V. Ensure that the application does not involve critical life support devices without explicit written approval from the manufacturer, as usage in such contexts is prohibited.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer with internal registration is necessary. The device is suitable for designs requiring high drive strength with 32 mA sourcing and 64 mA sinking capabilities. Consider its specifications for guaranteed output skew and simultaneous switching performance if signal timing precision across multiple lines is critical. Verify compatibility with system logic levels and load capacitance requirements before integration.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the ABT logic family, characterized by BiCMOS technology designed for high-speed operations. It functions as an octal registered transceiver, distinct from unregistered variants by its inclusion of dual D-type latches. The device facilitates controlled data flow between two ports while providing storage functionality, making it a specialized solution for complex digital interface architectures requiring precise timing and data retention.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult official documentation for verified substitute part numbers. Cross-referencing requires matching the octal registered transceiver function, 3-state outputs, and compatible package dimensions.

Buffers, Drivers, Receivers, Transceivers FAQ

How is data flow direction controlled in the 74ABT543CSC?

Data flow direction is controlled using separate Chip Enable inputs (CEAB and CEBA). Activating the appropriate enable input allows data to pass through the corresponding set of D-type latches in the desired direction.

What is the maximum output current capability of the device?

The A and B outputs have a current sourcing capability of 32 mA and a current sinking capability of 64 mA.

Does the device support hot insertion?

Yes, the device features nondestructive hot insertion capability, maintaining high impedance glitch-free bus loading throughout the entire power-up and power-down cycle.