74ACTQ16646SSC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ACTQ16646SSC is a 16-bit bidirectional registered bus transceiver housed in a 56-lead Shrink Small Outline Package (SSOP). It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device provides multiplexed transmission of data directly from the input bus or internal storage registers, utilizing separate control inputs for each byte. Outputs source and sink 24 mA with 3-state capability. Propagation delays range from 3.3 ns to 10.4 ns depending on the signal path and load conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Utilizes FACT Quiet Series technology for guaranteed simultaneous switching noise levels and dynamic threshold performance
• Features independent registers for A and B buses allowing multiplexed real-time and stored data transfers
• Includes GTO output control and undershoot corrector for superior quiet output switching
• Provides separate control logic for each byte with pin-to-pin output skew guarantees

Buffers, Drivers, Receivers, Transceivers Applications

• Multiplexed transmission of data between buses
• High-speed buffered register applications
• Bus-oriented memory and instrument control systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant, as the 74ACTQ16646 is available in both SSOP and TSSOP configurations. Confirm that the ordering code matches the required physical dimensions and lead pitch. Ensure compatibility with the target system's voltage levels and thermal requirements before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a 16-bit bidirectional transceiver with integrated storage is required. It is suitable for designs needing independent byte control and low noise performance. Consider the 56-lead SSOP package constraints regarding board space and thermal dissipation compared to other available packages.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ACTQ logic family, which employs Fairchild's Quiet Series technology. It is functionally equivalent to the 16-bit version of the ACTQ646. The device is manufactured by onsemi, formerly Fairchild Semiconductor, and retains the original datasheet specifications under the current brand portfolio.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ACTQ16646MTD is a direct replacement offering the same functionality in a 56-Lead Thin Shrink Small Outline Package (TSSOP) instead of the SSOP format.