74ACT646SCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACT646SCX is an octal transceiver and register featuring 3-state outputs in a 24-lead SOIC package. It operates within a supply voltage range of 4.5V to 5.5V and supports temperatures from -40°C to +85°C. The device includes independent D-type flip-flops for registers A and B, with clock inputs CPAB and CPBA. Propagation delays reach up to 16.0 ns at 5.0V. Outputs source or sink 24 mA, and the ACT variant ensures TTL-compatible inputs.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides multiplexed transmission of data directly from input buses or internal storage registers via independent A and B bus registers.
• Features 3-state outputs capable of sourcing and sinking 24 mA for direct load driving.
• Includes control circuitry for real-time transparent mode and stored data transfer modes.

Buffers, Drivers, Receivers, Transceivers Applications

• Registered bus transceivers
• Data storage and transfer systems
• Multiplexed data handling circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix 'X' confirms tape and reel packaging availability. Confirm RoHS compliance status through official manufacturer documentation. Ensure the component matches the 24-lead SOIC physical dimensions specified in the datasheet. Validate that the logic family corresponds to the ACT series requirements for your system design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with registered storage capabilities is required. The ACT logic family provides TTL-compatible inputs suitable for interfacing with standard logic families. Verify that the 24 mA output drive current meets the load requirements of the connected circuitry. Consider the propagation delay specifications relative to the system timing constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AC/74ACT logic family, specifically designed as an octal transceiver/register. It integrates D-type flip-flops and control logic to manage data flow between two 8-bit buses. The device allows for flexible data handling, supporting both immediate transmission and latched storage operations controlled by dedicated clock and direction signals.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

MC74ACT646

Buffers, Drivers, Receivers, Transceivers FAQ

How does the 74ACT646SCX handle data transfer?

It offers multiplexed transmission of data directly from the input bus or from internal storage registers, controlled by clock and direction inputs.

What are the input characteristics of the ACT version?

The ACT646 features TTL compatible inputs, allowing it to interface effectively with standard TTL logic levels.