SN74BCT646DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT646DW is an octal bus transceiver and register manufactured by Texas Instruments. It features three-state outputs for effective bus line driving and isolation. The device supports bidirectional data transfer between two buses, controlled by a direction (DIR) input and a low-active output enable (OE) signal. It integrates latching functionality to store data states. The component is designed for high-speed digital applications requiring reliable data transmission and storage in parallel architectures.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data paths
• Three-state outputs enabling direct connection to system buses without external buffers
• Integrated latching capability to maintain stored data states independently of input signals

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional bus drivers for microprocessor systems
• Memory interface circuits requiring data latching
• I/O port expansion in embedded control systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer marking matches Texas Instruments specifications. Confirm the package type corresponds to the SOIC-20 variant indicated by the DW suffix. Ensure the device meets required operating temperature ranges for the intended industrial or commercial environment. Cross-reference the date code with current production status to avoid obsolete stock.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bus transceiver with integrated latching is required. It is suitable for designs needing bidirectional data flow control via DIR and OE signals. Consider the SN74BCT series for compatibility with standard logic families while maintaining higher speed performance compared to older BCT variants.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74BCT family of high-speed CMOS logic devices. The BCT technology combines BiCMOS characteristics for improved switching speeds and noise immunity. It serves as a bridge between different voltage domains or logic levels in complex digital systems, ensuring signal integrity across multiple data lines.