component
TRS3237ECDBR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "trs3237ecdbr",
"title": "TRS3237ECDBR",
"brief": "Texas Instruments RS232 ICs, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"interface",
"trs3237ecdbr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TRS3237ECDBR",
"manufacturer": "Texas Instruments",
"package": "SSOP-28-208mil",
"pin_count": 28,
"category": "Interface",
"subcategory": "RS232 ICs",
"datasheet": "https://www.ti.com/cn/lit/gpn/trs3237e",
"parts": {
"symbol": "trs3237ecdbr.kicad_sym",
"footprint": "trs3237ecdbr.kicad_mod",
"model_3d": "trs3237ecdbr-hero.glb",
"model_3d_plain": "trs3237ecdbr.glb",
"model_3d_step": "trs3237ecdbr-etched.step",
"model_3d_step_plain": "trs3237ecdbr.step",
"lbr": "trs3237ecdbr.lbr"
},
"distributor_links": {
"lcsc": "C2672586",
"digikey": "296-25042-2-ND",
"mouser": "595-TRS3237ECDBR"
},
"distributor_check": {
"checked_at": "2026-10-08T16:02:52Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-25042-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-TRS3237ECDBR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "C2+",
"type": "passive",
"description": "Positive terminal of charge-pump capacitor C2 of the dual charge pump; the device uses four external capacitors (C1-C4) for operation from 3 V to 5.5 V."
},
{
"number": "2",
"name": "GND",
"type": "power_in",
"description": "Network ground; all device voltages are referenced to network GND."
},
{
"number": "3",
"name": "C2−",
"type": "passive",
"description": "Negative terminal of charge-pump capacitor C2 of the dual charge pump."
},
{
"number": "4",
"name": "V−",
"type": "power_out",
"description": "Charge-pump generated negative supply for the RS-232 drivers; rated to −7 V absolute maximum, with V+ − V− not exceeding 13 V."
},
{
"number": "5",
"name": "DOUT1",
"type": "output",
"description": "RS-232 driver output 1, rated ±13.2 V absolute maximum and forced to high impedance when SHDN = GND."
},
{
"number": "6",
"name": "DOUT2",
"type": "output",
"description": "RS-232 driver output 2, rated ±13.2 V absolute maximum and forced to high impedance when SHDN = GND."
},
{
"number": "7",
"name": "DOUT3",
"type": "output",
"description": "RS-232 driver output 3, rated ±13.2 V absolute maximum and forced to high impedance when SHDN = GND."
},
{
"number": "8",
"name": "RIN1",
"type": "input",
"description": "RS-232 receiver input 1, rated for ±25 V input voltage with 3 kΩ to 7 kΩ input resistance."
},
{
"number": "9",
"name": "RIN2",
"type": "input",
"description": "RS-232 receiver input 2, rated for ±25 V input voltage with 3 kΩ to 7 kΩ input resistance."
},
{
"number": "10",
"name": "DOUT4",
"type": "output",
"description": "RS-232 driver output 4, rated ±13.2 V absolute maximum and forced to high impedance when SHDN = GND."
},
{
"number": "11",
"name": "RIN3",
"type": "input",
"description": "RS-232 receiver input 3, rated for ±25 V input voltage with 3 kΩ to 7 kΩ input resistance."
},
{
"number": "12",
"name": "DOUT5",
"type": "output",
"description": "RS-232 driver output 5, rated ±13.2 V absolute maximum and forced to high impedance when SHDN = GND."
},
{
"number": "13",
"name": "EN",
"type": "input",
"description": "Receiver enable input; setting EN high places the receiver outputs (except ROUT1B) in high impedance."
},
{
"number": "14",
"name": "SHDN",
"type": "input",
"description": "Shutdown input; driving SHDN to GND disables the transmitters, forces DOUT high impedance, disables the charge pump and limits supply current to less than 1 mA."
},
{
"number": "15",
"name": "MBAUD",
"type": "input",
"description": "Data-rate select input; GND selects 250 kbit/s operation and VCC selects up to 1 Mbit/s operation."
},
{
"number": "16",
"name": "ROUT1B",
"type": "output",
"description": "Receiver output 1B, remains active regardless of the EN and SHDN states."
},
{
"number": "17",
"name": "DIN5",
"type": "input",
"description": "Driver input 5 logic input; VIL maximum 0.8 V and VIH from 2 V (3.3 V supply) or 2.4 V (5 V supply), rated to 6 V absolute maximum."
},
{
"number": "18",
"name": "ROUT3",
"type": "output",
"description": "Receiver logic output 3, with VOH of at least VCC − 0.6 V at IOH = −1 mA."
},
{
"number": "19",
"name": "DIN4",
"type": "input",
"description": "Driver input 4 logic input; VIL maximum 0.8 V and VIH from 2 V (3.3 V supply) or 2.4 V (5 V supply), rated to 6 V absolute maximum."
},
{
"number": "20",
"name": "ROUT2",
"type": "output",
"description": "Receiver logic output 2, with VOH of at least VCC − 0.6 V at IOH = −1 mA."
},
{
"number": "21",
"name": "ROUT1",
"type": "output",
"description": "Receiver logic output 1, with VOH of at least VCC − 0.6 V at IOH = −1 mA."
},
{
"number": "22",
"name": "DIN3",
"type": "input",
"description": "Driver input 3 logic input; VIL maximum 0.8 V and VIH from 2 V (3.3 V supply) or 2.4 V (5 V supply), rated to 6 V absolute maximum."
},
{
"number": "23",
"name": "DIN2",
"type": "input",
"description": "Driver input 2 logic input; VIL maximum 0.8 V and VIH from 2 V (3.3 V supply) or 2.4 V (5 V supply), rated to 6 V absolute maximum."
},
{
"number": "24",
"name": "DIN1",
"type": "input",
"description": "Driver input 1 logic input; VIL maximum 0.8 V and VIH from 2 V (3.3 V supply) or 2.4 V (5 V supply), rated to 6 V absolute maximum."
},
{
"number": "25",
"name": "C1−",
"type": "passive",
"description": "Negative terminal of charge-pump capacitor C1 of the dual charge pump."
},
{
"number": "26",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage input, 3 V to 5.5 V (3.3 V ±0.3 V or 5 V ±0.5 V), with −0.3 V to 6 V absolute maximum."
},
{
"number": "27",
"name": "V+",
"type": "power_out",
"description": "Charge-pump generated positive supply for the RS-232 drivers; rated to 7 V absolute maximum."
},
{
"number": "28",
"name": "C1+",
"type": "passive",
"description": "Positive terminal of charge-pump capacitor C1 of the dual charge pump."
}
],
"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: Pin-number mapping was inferred from the text-extracted DB/DW/PW top-view diagram on page 1 (labels ; Pin descriptions are summarized from absolute-maximum, recommended-operating and electrical-characte; The DB (SSOP-28) variant is the one matching TRS3237ECDBR. The same pin list applies to the DW and P",
"8/28 pins cited to the wrong page (name found elsewhere): ['8:RIN1@p6', '9:RIN2@p6', '11:RIN3@p6', '18:ROUT3@p6']"
],
"pages_sent": 18,
"cost_usd": 0.1028,
"at": "2026-10-08T16:02:28"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/trs3237e",
"pages": 18,
"sha256": "b972aab2d1469ca9",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "trs3237ecdbr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.8,
10.2,
2.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "7aa76979ae41da44bded1ed74115012868f2f3f5a757faf32bb9df4f92c1e313",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "trs3237ecdbr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.8,
10.2,
2.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "6b9198863bfe924d2132debea3c6bad4a7a98c31236e5c6e071966f735f7dcae",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SSOP-28-208mil",
"Category": "Interface",
"Pins": "28"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"trs3237ecdbr"
],
"discovery_pitch": "TRS3237ECDBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"trs3237ecdbr.kicad_sym",
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"trs3237ecdbr.step",
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"docs/hero.png",
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"viewers/symbol.html",
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"visibility": {
"public": true
}
}