SN74AS244DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AS244DW is an octal buffer and line driver from the Texas Instruments AS logic series. It features eight non-inverting inputs with three-state outputs housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 6.2 ns, a high-level output current of -15 mA, and a low-level output current of 64 mA. It functions at bipolar logic levels with a maximum operating temperature of +70 C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides octal buffering and line driving capabilities with three-state outputs for bus-oriented systems.
• Delivers high-speed performance through the AS logic family characteristics.
• Features strong low-level sink current capability suitable for direct interface with TTL loads.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module address and data bus drivers
• Clock distribution buffers
• Bidirectional bus transceivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DW' confirms the SOIC-20 tube packaging variant rather than reel or tape options. Confirm RoHS compliance status as manufacturing updates may alter material declarations. Ensure the source document explicitly lists the SN74AS244DW part number to distinguish it from similar AS series variants with different thermal or electrical ratings.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed signal integrity is required alongside robust drive strength for heavy capacitive loads. The AS series offers faster switching speeds compared to standard LS or HC families. Verify that the 5V-only supply requirement aligns with the system power architecture, as this device does not support lower voltage operation ranges found in AHC or LVC families.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the Texas Instruments SN74AS (Advanced Schottky) logic family, designed for applications requiring high speed and reduced power dissipation relative to earlier Schottky technologies. The SN74AS244A variant typically shares identical pinouts and functional descriptions, often serving as a drop-in replacement depending on specific manufacturer lot revisions.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AS244ADW is a verified equivalent part number representing the same functional device in the SOIC-20 package format.