74ABT543CSCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT543CSCX is an octal registered transceiver with 3-STATE outputs, manufactured by Fairchild Semiconductor. It operates within a supply voltage range of +4.5V to +5.5V and supports a free air ambient temperature from -40°C to +85°C. The device features separate Latch Enable and Output Enable inputs for independent control of data flow direction. Propagation delay ranges from 1.5 ns to 6.5 ns depending on load conditions. Outputs provide current sourcing capability of 32 mA and sinking capability of 64 mA. The component is housed in a 24-Lead Small Outline Integrated Circuit (SOIC) package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Contains two sets of D-type latches for temporary storage of data flowing in either direction.
• Provides bidirectional data path with separate controls for data flow in each direction.
• Features high impedance glitch-free bus loading during the entire power up and power down cycle.
• Includes nondestructive hot insertion capability.

Buffers, Drivers, Receivers, Transceivers Applications

• Temporary storage of data flowing in either direction
• Bidirectional data path applications
• Bus loading during power up and power down cycles

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer origin as this part was originally produced by Fairchild Semiconductor before acquisition by onsemi. Confirm the specific SOIC package variant matches the M24B designation. Ensure compliance with life support policies if intended for critical systems. Check RoHS documentation for material composition details. Validate that the ordering code suffix 'X' corresponds to tape and reel packaging if required.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer with registered storage is required at 5V logic levels. Consider the 32 mA sourcing and 64 mA sinking capabilities for driving heavy loads. Evaluate propagation delays against system timing requirements under expected capacitive loads. Ensure the operating temperature range meets environmental constraints. Verify package compatibility with PCB layout specifications.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the ABT logic family, designed for high-speed operations at 5V. It serves as an octal transceiver with registration capabilities, distinct from unregistered variants. The SOIC package provides surface mount convenience. Related parts include other ABT series transceivers and buffers. The technology leverages advanced BiCMOS processes for speed and low power consumption.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalent parts from other manufacturers offering similar ABT series characteristics. Verify pinout compatibility and electrical specifications match exactly. Consider package dimensions for direct replacement. Review lifecycle status to ensure long-term availability. Confirm functional equivalence in bidirectional data handling and latch control mechanisms.