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Texas Instruments SN74AS244DWR — Logic ICs

SN74AS244DWR AS Bus Driver, Active, Bulk Package

MPNSN74AS244DWR
End of Life

Texas Instruments SN74AS244DWR, AS-series bus driver, Bulk package, active lifecycle, RoHS non-compliant.

$0.8Ref. price · indicative, final on quote
RoHSRoHS non-compliant
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74AS244DWR specifications
ParameterValue
Series*
PackageBulk

Product details

The Texas Instruments SN74AS244DWR is an octal bus driver from the AS (Advanced Schottky) logic family, designed for buffering and driving high-capacitance bus lines in digital systems. It provides eight non-inverting buffers with three-state outputs, making it suitable for memory address drivers, clock distribution, and general-purpose line driving in industrial control, telecom, and computing equipment where the AS family's speed and drive strength are needed.

RoHS non-compliant — BOM flag for lead-free lines

If your assembly line runs a lead-free reflow profile, this part will need an exemption justification or a separate leaded process step. For RoHS-required builds, consider the SN74AS244N (DIP) or other through-hole variants that may carry a different compliance status — verify the specific order code against your BOM's RoHS requirement.

This is common for DIP and SOIC packages ordered in engineering or low-volume production quantities. For high-volume pick-and-place, confirm whether a tape-and-reel option (e.g., SN74AS244DWRG4) is available from the manufacturer; if not, plan for manual tube feeding or a tube-to-reel transfer at the contract assembler.

Frequently asked questions

Is SN74AS244DWR RoHS compliant?

Verify your assembly's RoHS requirements before ordering.

What is the difference between SN74AS244DWR and SN74AS244N?

The SN74AS244DWR is in a SOIC-20 (surface-mount) package, while the SN74AS244N is in a PDIP-20 (through-hole) package. The electrical function is identical — both are octal non-inverting bus drivers from the AS family — but the package determines the PCB footprint and assembly method.