SN74LVTH646DWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH646DWG4 is an octal bus transceiver from the Texas Instruments LVTH series, designed for 2.7-V to 3.6-V VCC operation. It features TTL/CMOS compatible inputs and LVTTL outputs with three-state capability. The device provides a propagation delay of 5.6 ns at 2.7 V and supports low-level output currents of 64 mA and high-level output currents of -32 mA. It operates within a temperature range of -40°C to +85°C and is housed in a TSSOP-24 package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data transfer between two buses with independent direction control
• Three-state outputs isolate the bus when disabled
• TTL/CMOS input compatibility ensures interface flexibility
• LVTTL output levels support direct connection to 3.3-V systems

Buffers, Drivers, Receivers, Transceivers Applications

• Memory mapping controllers
• Clock drivers
• Bus-oriented communications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix G4 indicates RoHS compliance and green material status as per Texas Instruments standards. Confirm the package type matches the design requirement, as the DWG4 designation corresponds to the TSSOP-24 variant. Cross-reference the manufacturer part number with official datasheets to ensure electrical specifications align with system voltage and current requirements before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed data transfer in 3.3-V environments. The LVTH technology offers a balance of speed and power consumption suitable for battery-operated systems. Ensure the PCB layout accommodates the TSSOP-24 footprint and that thermal management meets the specified operating temperature range for reliable performance.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH646 family of octal bus transceivers. It is functionally similar to other LVTH devices but optimized for specific voltage ranges and drive strengths. The DG4 suffix typically denotes a tape and reel packaging option, distinguishing it from tube-packaged variants like the DW version.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the SN74LVTH646DW and SN74LVTH646PWR, provided pinout and electrical characteristics match the application needs. Verify package compatibility and lead availability when considering these alternatives.