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SN74ABT244ADWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74ABT244ADWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil
SN74ABT244ADWR from Texas Instruments, in a SOIC-20-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OE | input | Active-low output enable for buffer 1; when low, buffer 1 outputs pass data; when high, outputs are high-impedance. |
| 2 | 1A1 | input | Data input A1 for buffer 1; passes noninverted data to output 1Y1 when 1OE is low. |
| 3 | 2Y4 | tri_state | 3-state output Y4 of buffer 2; drives bus when 2OE is low, high-impedance when high. |
| 4 | 1A2 | input | Data input A2 for buffer 1; passes noninverted data to output 1Y2 when 1OE is low. |
| 5 | 2Y3 | tri_state | 3-state output Y3 of buffer 2; drives bus when 2OE is low, high-impedance when high. |
| 6 | 1A3 | input | Data input A3 for buffer 1; passes noninverted data to output 1Y3 when 1OE is low. |
| 7 | 2Y2 | tri_state | 3-state output Y2 of buffer 2; drives bus when 2OE is low, high-impedance when high. |
| 8 | 1A4 | input | Data input A4 for buffer 1; passes noninverted data to output 1Y4 when 1OE is low. |
| 9 | 2Y1 | tri_state | 3-state output Y1 of buffer 2; drives bus when 2OE is low, high-impedance when high. |
| 10 | GND | power_in | Ground; negative power supply return path and 0 V reference. |
| 11 | 2A1 | input | Data input A1 for buffer 2; passes noninverted data to output 2Y1 when 2OE is low. |
| 12 | 1Y4 | tri_state | 3-state output Y4 of buffer 1; drives bus when 1OE is low, high-impedance when high. |
| 13 | 2A2 | input | Data input A2 for buffer 2; passes noninverted data to output 2Y2 when 2OE is low. |
| 14 | 1Y3 | tri_state | 3-state output Y3 of buffer 1; drives bus when 1OE is low, high-impedance when high. |
| 15 | 2A3 | input | Data input A3 for buffer 2; passes noninverted data to output 2Y3 when 2OE is low. |
| 16 | 1Y2 | tri_state | 3-state output Y2 of buffer 1; drives bus when 1OE is low, high-impedance when high. |
| 17 | 2A4 | input | Data input A4 for buffer 2; passes noninverted data to output 2Y4 when 2OE is low. |
| 18 | 1Y1 | tri_state | 3-state output Y1 of buffer 1; drives bus when 1OE is low, high-impedance when high. |
| 19 | 2OE | input | Active-low output enable for buffer 2; when low, buffer 2 outputs pass data; when high, outputs are high-impedance. |
| 20 | VCC | power_in | Positive power supply voltage; operating range 4.5 V to 5.5 V per recommended operating conditions. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74ABT244ADWR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
sn74abt244adwr-etched.step/sn74abt244adwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74abt244adwr.step/sn74abt244adwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
57c17b091723d834, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).