74ACTQ646SCX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ646SCX is an octal bus transceiver and register featuring 3-state outputs, housed 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 provides independent registers for A and B buses with multiplexed real-time and stored data transfers. Key electrical parameters include output source/sink currents of 24 mA, propagation delays up to 11.0 ns at 5.0V, and maximum quiescent supply current of 80.0 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes Quiet Series technology to guarantee simultaneous switching noise levels and dynamic threshold performance.
• Features independent registers for A and B busses allowing multiplexed real-time and stored data transfers.
• Includes GTO output control and undershoot corrector for superior signal integrity.

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus systems requiring registered storage
• Multiplexed transmission of data between input buses and internal registers
• Octal bidirectional bus transceivers with 3-state outputs

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 as required by project specifications. Ensure the component meets all absolute maximum ratings regarding supply voltage and current limits during system integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal bus transceivers with integrated D-type flip-flops. The ACTQ series offers faster propagation delays compared to standard AC/ACT counterparts. Verify that the 24-lead SOIC package dimensions fit the target PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACQ646/74ACTQ646 family of octal transceivers with registers. Manufactured originally by Fairchild Semiconductor, it is now distributed under the onsemi brand. The device integrates control circuitry for direct data transmission or storage via clock inputs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

CD74ACT646M (Texas Instruments)