SN74LVCH244ADW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH244ADW is an octal buffer and line driver from Texas Instruments, belonging to the LVCH logic family. It features eight non-inverting channels with three-state outputs, designed for operation within a supply voltage range of 1.65 V to 3.6 V. The device supports mixed-mode signal operations, allowing compatibility with 5-V inputs while powered by lower voltages. Key electrical characteristics include a maximum low-level output current of 24 mA and a high-level output current of -24 mA. Propagation delay is specified at 3.1 ns at 2.7 V and 2.8 ns at 3.3 V. It operates reliably across a temperature range of -40°C to +85°C and is housed in a 20-pin SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operations for 5-V input tolerance with 3.3-V or 1.65-V power supplies
• Provides eight non-inverting channels with three-state outputs for bus-oriented connections
• Features Ioff support to prevent excessive current draw during partial-power-down states

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented connections in portable systems
• Clock drivers and buffer circuits
• Memory module data buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-20 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation, as environmental certifications may vary by production batch. Ensure the ordering part number matches the exact speed grade and package type required for your design specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring low-voltage operation with high noise immunity. The LVCH series offers faster switching speeds compared to standard LVC devices while maintaining low power consumption. Consider the 24 mA drive capability for driving moderate capacitive loads on system buses without external buffering components.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the broader 74LVCH244A family of octal buffers. It shares functional similarities with the SN74LVC244 but utilizes CMOS technology optimized for lower voltage swings. The SN74LVCH244ADW serves as a direct replacement for older 5-V tolerant buffer solutions in modern low-power embedded applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCH244ADWR is available as a tape-and-reel alternative to the tube-packaged ADW version.