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Texas Instruments SN74ABT2244APWR — Logic ICs

SN74ABT2244APWR Buffer, Non-Inverting, 3-State, 20-TSSOP, 5V

MPNSN74ABT2244APWR
End of Life

Texas Instruments 74ABT series, SN74ABT2244APWR, Buffer, Non-Inverting, 3-State, 4.5V ~ 5.5V supply, 32mA / 12mA output, -40°C ~ 85°C, 20-TSSOP, Surface Mount.

$0.84Ref. price · indicative, final on quote
Texas Instruments SN74ABT2244APWR datasheet (PDF)
Packaging20-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
Series74ABT
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74ABT2244APWR specifications
ParameterValue
Series74ABT
Logic typeBuffer, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Current - output high, low32mA, 12mA
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-TSSOP (0.173\", 4.40mm Width)
Number of elements2
Number of bits per element4

Product details

What this 74ABT buffer does on a 5 V bus

The 3-state outputs let multiple devices share a data bus; when the output-enable pins are pulled high, the outputs go high-impedance and the bus floats clean.

Industrial temperature range — fits factory-floor and outdoor gear

No need to derate for the cold end; the ABT process holds its drive strength down to -40°C.

Package and footprint — 20-TSSOP, surface mount

Housed in a 20-TSSOP (4.40 mm width) with a 0.65 mm pitch, it is a standard surface-mount footprint that reflows on the same profile as other TSSOP logic. The supplier device package is 20-TSSOP — no exposed pad, no thermal via needed.

Frequently asked questions

Is SN74ABT2244APWR a direct replacement for SN74ABT2244DW?

The SN74ABT2244DW is the same die in a different package (SOIC-20 versus TSSOP-20). The APWR suffix indicates the 20-TSSOP tape-and-reel variant. Functionally identical, but the footprint is different — check your board layout before substituting.

What is the equivalent of SN74ABT2244APWR?

The closest functional equivalent is the SN74ABT2245DW, which is an 8-bit transceiver rather than a buffer. Both are 5 V, 3-state, 74ABT family parts. The 2244 is a buffer (data flows one direction); the 2245 is a transceiver (bidirectional with direction control). If your design needs bidirectional bus handling, the 2245 is the swap.