SN74ABT543APWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT543APWR is an octal registered transceiver utilizing state-of-the-art EPIC-II BiCMOS design. It features two sets of D-type latches for temporary data storage and supports bidirectional data flow between A and B ports. The device provides high-drive outputs with a maximum low-level output current of 64 mA and a maximum high-level output current of -32 mA. It operates within a supply voltage range of 4.5 V to 5.5 V and is characterized for operation from -40°C to +85°C. The component is housed in a TSSOP-24 package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Incorporates two sets of D-type latches for independent data storage control
• Supports bidirectional data transfer between separate A and B port sets
• Features high-drive outputs capable of significant current sourcing and sinking

Buffers, Drivers, Receivers, Transceivers Applications

• High-performance memory mapping systems
• Clock drivers and buffer circuits
• Control bus architectures requiring registered data paths

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the Thin Shrink Small-Outline (TSSOP) package configuration. Confirm that the lead finish is NIPDAU as indicated in the packaging addendum. Ensure the procurement quantity aligns with the standard large tape and reel specification of 2000 units per carrier.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer with internal registration is required at 5V logic levels. The ABT series offers faster switching speeds compared to standard ALS or LVC families. Verify that the system power supply remains strictly within the 4.5V to 5.5V range to ensure proper functionality and avoid exceeding absolute maximum ratings.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ABT543A family of octal registered transceivers. It is the commercial grade version, distinct from the SN54ABT543A which is qualified for the full military temperature range. The 'PWR' suffix denotes the specific TSSOP package type and tape-and-reel shipping method.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABT543ADWR

Buffers, Drivers, Receivers, Transceivers FAQ

How is the high-impedance state ensured during power-up or power-down?

The OE input should be tied to VCC through a pullup resistor to ensure the high-impedance state during power transitions.

What is the function of the CE and LE inputs?

CE (Chip Enable) controls data flow direction, while LE (Latch Enable) controls the transparency of the D-type latches for storing data.