component
SN75ALS170ADWR
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"digikey": "SN75ALS170ADWR-ND",
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"number": "1",
"name": "1D",
"type": "input",
"description": "Channel 1 driver data input, with VIH at least 2 V and VIL at most 0.8 V; it drives bus port 1A/1B when 1DIR is high."
},
{
"number": "2",
"name": "1DIR",
"type": "input",
"description": "Channel 1 direction control: high enables the driver and disables the receiver output, low puts the driver outputs in high impedance and enables the receiver; VIH at least 2 V and VIL at most 0.8 V."
},
{
"number": "3",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "4",
"name": "GND",
"type": "power_in",
"description": "Network ground terminal; all voltages except the differential bus voltage are referenced to this pin."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "6",
"name": "2D",
"type": "input",
"description": "Channel 2 driver data input, with VIH at least 2 V and VIL at most 0.8 V; it drives bus port 2A/2B when 2DIR is high."
},
{
"number": "7",
"name": "2DIR",
"type": "input",
"description": "Channel 2 direction control: high enables the driver and disables the receiver output, low puts the driver outputs in high impedance and enables the receiver; VIH at least 2 V and VIL at most 0.8 V."
},
{
"number": "8",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "9",
"name": "3D",
"type": "input",
"description": "Channel 3 driver data input, with VIH at least 2 V and VIL at most 0.8 V; it drives bus port 3A/3B when 3DIR is high."
},
{
"number": "10",
"name": "3DIR",
"type": "input",
"description": "Channel 3 direction control: high enables the driver and disables the receiver output, low puts the driver outputs in high impedance and enables the receiver; VIH at least 2 V and VIL at most 0.8 V."
},
{
"number": "11",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "12",
"name": "3A",
"type": "bidirectional",
"description": "Noninverting differential bus I/O terminal of channel 3; bus terminal voltage range is -7 V to 12 V, common mode."
},
{
"number": "13",
"name": "3B",
"type": "bidirectional",
"description": "Inverting differential bus I/O terminal of channel 3; bus terminal voltage range is -7 V to 12 V, common mode."
},
{
"number": "14",
"name": "2A",
"type": "bidirectional",
"description": "Noninverting differential bus I/O terminal of channel 2; bus terminal voltage range is -7 V to 12 V, common mode."
},
{
"number": "15",
"name": "2B",
"type": "bidirectional",
"description": "Inverting differential bus I/O terminal of channel 2; bus terminal voltage range is -7 V to 12 V, common mode."
},
{
"number": "16",
"name": "VCC",
"type": "power_in",
"description": "Single 5-V supply; recommended range 4.75 V to 5.25 V."
},
{
"number": "17",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "18",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "19",
"name": "1A",
"type": "bidirectional",
"description": "Noninverting differential bus I/O terminal of channel 1; bus terminal voltage range is -7 V to 12 V, common mode."
},
{
"number": "20",
"name": "1B",
"type": "bidirectional",
"description": "Inverting differential bus I/O terminal of channel 1; bus terminal voltage range is -7 V to 12 V, common mode."
}
],
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"primary_model": "claude-haiku-5-5",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The DW pin-name list in the datasheet text is garbled (names are extracted out of order). The assign; The datasheet lists the SN75ALS170ADW (5 ns skew) and SN75ALS170DW (10 ns skew) under the same DW pa"
],
"pages_sent": 23,
"cost_usd": 0.1053,
"at": "2026-10-08T18:07:09"
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"sha256": "ab79641101b890f9",
"source_tier": "lcsc"
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"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOIC-20-300mil",
"Category": "Interface",
"Pins": "20"
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