SN74ALS646NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS646NT is an octal bus transceiver from the Texas Instruments ALS logic family, housed in a 20-pin SOIC package. It features registered inputs and three-state outputs for effective bus isolation. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 30 ns, a low-level output current of 24 mA, and a high-level output current of -15 mA. It supports TTL input and output levels and functions within a commercial temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal Registered Bus Transceiver
• Three-State Outputs
• Non-Inverting Logic

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data acquisition systems
• Memory buffer applications
• Bus-oriented architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'NT' against official manufacturer documentation to confirm exact packaging and tape-and-reel specifications. Ensure compatibility with standard 5V logic families when integrating into existing circuit designs. Confirm RoHS compliance status through the latest datasheet before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring eight-bit data buffering with registered inputs. The ALS series offers improved speed and power consumption compared to older LS variants. Verify that the required drive current capabilities meet the load requirements of the connected bus lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS646A series of octal bus transceivers. It provides a reliable solution for managing data flow between multiple devices on a shared bus structure. The registered nature of the inputs helps maintain data integrity during transitions.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct equivalents such as the SN74ALS646ADW or SN74ALS646N depending on the required package type (SOIC vs. DIP). Ensure functional pinouts match exactly to avoid redesign efforts.