component
SN74ABT244APWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"slug": "sn74abt244apwr",
"title": "SN74ABT244APWR",
"brief": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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],
"component": {
"mpn": "SN74ABT244APWR",
"manufacturer": "Texas Instruments",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Buffers, Drivers, Receivers, Transceivers",
"datasheet": "https://www.ti.com/lit/ds/symlink/sn74abt244a.pdf",
"parts": {
"symbol": "sn74abt244apwr.kicad_sym",
"footprint": "sn74abt244apwr.kicad_mod",
"model_3d": "sn74abt244apwr-hero.glb",
"model_3d_plain": "sn74abt244apwr.glb",
"model_3d_step": "sn74abt244apwr-etched.step",
"model_3d_step_plain": "sn74abt244apwr.step",
"lbr": "sn74abt244apwr.lbr"
},
"distributor_links": {
"lcsc": "C2675579",
"digikey": "296-3968-2-ND",
"mouser": "595-SN74ABT244APWR"
},
"distributor_check": {
"checked_at": "2026-10-08T00:20:11Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-3968-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-SN74ABT244APWR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "1OE",
"type": "input",
"description": "Active-low output enable for buffer section 1; when high, outputs 1Y1 to 1Y4 go to high impedance, and OE should be tied to VCC through a pullup resistor to keep outputs high-Z during power up or power down."
},
{
"number": "2",
"name": "1A1",
"type": "input",
"description": "Data input of buffer 1 in section 1, passed noninverted to output 1Y1 when 1OE is low; inputs must be held high or low when unused."
},
{
"number": "3",
"name": "2Y4",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 4 in section 2, high-impedance when 2OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "4",
"name": "1A2",
"type": "input",
"description": "Data input of buffer 2 in section 1, passed noninverted to output 1Y2 when 1OE is low; inputs must be held high or low when unused."
},
{
"number": "5",
"name": "2Y3",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 3 in section 2, high-impedance when 2OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "6",
"name": "1A3",
"type": "input",
"description": "Data input of buffer 3 in section 1, passed noninverted to output 1Y3 when 1OE is low; inputs must be held high or low when unused."
},
{
"number": "7",
"name": "2Y2",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 2 in section 2, high-impedance when 2OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "8",
"name": "1A4",
"type": "input",
"description": "Data input of buffer 4 in section 1, passed noninverted to output 1Y4 when 1OE is low; inputs must be held high or low when unused."
},
{
"number": "9",
"name": "2Y1",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 1 in section 2, high-impedance when 2OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Device ground pin."
},
{
"number": "11",
"name": "2A1",
"type": "input",
"description": "Data input of buffer 1 in section 2, passed noninverted to output 2Y1 when 2OE is low; input range is 0 to VCC and unused inputs must be held high or low."
},
{
"number": "12",
"name": "1Y4",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 4 in section 1, high-impedance when 1OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "13",
"name": "2A2",
"type": "input",
"description": "Data input of buffer 2 in section 2, passed noninverted to output 2Y2 when 2OE is low; input range is 0 to VCC and unused inputs must be held high or low."
},
{
"number": "14",
"name": "1Y3",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 3 in section 1, high-impedance when 1OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "15",
"name": "2A3",
"type": "input",
"description": "Data input of buffer 3 in section 2, passed noninverted to output 2Y3 when 2OE is low; input range is 0 to VCC and unused inputs must be held high or low."
},
{
"number": "16",
"name": "1Y2",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 2 in section 1, high-impedance when 1OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "17",
"name": "2A4",
"type": "input",
"description": "Data input of buffer 4 in section 2, passed noninverted to output 2Y4 when 2OE is low; input range is 0 to VCC and unused inputs must be held high or low."
},
{
"number": "18",
"name": "1Y1",
"type": "tri_state",
"description": "Noninverting three-state output of buffer 1 in section 1, high-impedance when 1OE is high, rated for −32 mA IOH and 64 mA IOL (SN74ABT244A)."
},
{
"number": "19",
"name": "2OE",
"type": "input",
"description": "Active-low output enable for buffer section 2; when high, outputs 2Y1 to 2Y4 go to high impedance, and OE should be tied to VCC through a pullup resistor to keep outputs high-Z during power up or power down."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage, 4.5 V to 5.5 V recommended operating range."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet covers the SN74ABT244A family (SCBS099J). The PW (TSSOP-20) package is listed on the t; The page 1 pin diagram text is scrambled in extraction. Pin assignments were reconstructed from the ; Output pins are typed tri_state because the datasheet specifies a high-impedance state when OE is hi"
],
"pages_sent": 39,
"cost_usd": 0.1214,
"at": "2026-10-08T00:19:53"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/sn74abt244a.pdf",
"pages": 39,
"sha256": "57c17b091723d834",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "sn74abt244apwr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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"role": "eda",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "3ffd1625228aa8b6be9c73368cce469b289aa0a2330ffacea1da0959d8a57d36",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "TSSOP-20",
"Category": "Logic",
"Pins": "20"
}
},
"variants": [],
"sections": [
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"discovery_triggers": [
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],
"discovery_pitch": "SN74ABT244APWR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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}