component
TRS3243IDBR
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": "trs3243idbr",
"title": "TRS3243IDBR",
"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",
"trs3243idbr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "TRS3243IDBR",
"manufacturer": "Texas Instruments",
"package": "SSOP-28-208mil",
"pin_count": 28,
"category": "Interface",
"subcategory": "RS232 ICs",
"datasheet": "https://www.ti.com/cn/lit/gpn/trs3243",
"parts": {
"symbol": "trs3243idbr.kicad_sym",
"footprint": "trs3243idbr.kicad_mod",
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"model_3d_step": "trs3243idbr-etched.step",
"model_3d_step_plain": "trs3243idbr.step",
"lbr": "trs3243idbr.lbr"
},
"distributor_links": {
"lcsc": "C2872593",
"digikey": "296-25058-2-ND",
"mouser": "595-TRS3243IDBR"
},
"distributor_check": {
"checked_at": "2026-10-08T17:06:35Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-25058-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-TRS3243IDBR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "C2+",
"type": "passive",
"description": "Positive terminal of the voltage-doubler charge-pump capacitor, with the capacitor value set per the VCC versus capacitor table (Table 9-1)."
},
{
"number": "2",
"name": "C2-",
"type": "passive",
"description": "Negative terminal of the voltage-doubler charge-pump capacitor, with the capacitor value set per the VCC versus capacitor table (Table 9-1)."
},
{
"number": "3",
"name": "V-",
"type": "power_out",
"description": "Negative charge-pump output voltage; the V- supply is rated to -7 V absolute maximum and the V+ - V- difference to 13 V."
},
{
"number": "4",
"name": "RIN1",
"type": "input",
"description": "RS-232 receiver input with a recommended input range of -25 V to 25 V and an input resistance of 3 kΩ to 7 kΩ."
},
{
"number": "5",
"name": "RIN2",
"type": "input",
"description": "RS-232 receiver input with a recommended input range of -25 V to 25 V and an input resistance of 3 kΩ to 7 kΩ; it also feeds the always-active ROUT2B output."
},
{
"number": "6",
"name": "RIN3",
"type": "input",
"description": "RS-232 receiver input with a recommended input range of -25 V to 25 V and an input resistance of 3 kΩ to 7 kΩ."
},
{
"number": "7",
"name": "RIN4",
"type": "input",
"description": "RS-232 receiver input with a recommended input range of -25 V to 25 V and an input resistance of 3 kΩ to 7 kΩ."
},
{
"number": "8",
"name": "RIN5",
"type": "input",
"description": "RS-232 receiver input with a recommended input range of -25 V to 25 V and an input resistance of 3 kΩ to 7 kΩ."
},
{
"number": "9",
"name": "DOUT1",
"type": "output",
"description": "RS-232 driver output with an absolute output range of -13.2 V to 13.2 V; it is high impedance when the device is powered off."
},
{
"number": "10",
"name": "DOUT2",
"type": "output",
"description": "RS-232 driver output with an absolute output range of -13.2 V to 13.2 V; it is high impedance when the device is powered off."
},
{
"number": "11",
"name": "DOUT3",
"type": "output",
"description": "RS-232 driver output with an absolute output range of -13.2 V to 13.2 V; it is high impedance when the device is powered off."
},
{
"number": "12",
"name": "DIN3",
"type": "input",
"description": "Driver logic input with a 0 V to 5.5 V input range, VIL maximum of 0.8 V, and VIH minimum of 2 V at VCC = 3.3 V or 2.4 V at VCC = 5 V."
},
{
"number": "13",
"name": "DIN2",
"type": "input",
"description": "Driver logic input with a 0 V to 5.5 V input range, VIL maximum of 0.8 V, and VIH minimum of 2 V at VCC = 3.3 V or 2.4 V at VCC = 5 V."
},
{
"number": "14",
"name": "DIN1",
"type": "input",
"description": "Driver logic input with a 0 V to 5.5 V input range, VIL maximum of 0.8 V, and VIH minimum of 2 V at VCC = 3.3 V or 2.4 V at VCC = 5 V."
},
{
"number": "15",
"name": "ROUT5",
"type": "output",
"description": "Receiver logic output that goes high for an open receiver input and is high impedance when the device is powered off."
},
{
"number": "16",
"name": "ROUT4",
"type": "output",
"description": "Receiver logic output that goes high for an open receiver input and is high impedance when the device is powered off."
},
{
"number": "17",
"name": "ROUT3",
"type": "output",
"description": "Receiver logic output that goes high for an open receiver input and is high impedance when the device is powered off."
},
{
"number": "18",
"name": "ROUT2",
"type": "output",
"description": "Receiver logic output that goes high for an open receiver input and is high impedance when the device is powered off."
},
{
"number": "19",
"name": "ROUT1",
"type": "output",
"description": "Receiver logic output that goes high for an open receiver input and is high impedance when the device is powered off."
},
{
"number": "20",
"name": "ROUT2B",
"type": "output",
"description": "Always-active noninverting output of the RIN2 input that stays enabled while the device is powered down, allowing ring-indicator data transmission."
},
{
"number": "21",
"name": "INVALID",
"type": "output",
"description": "Invalid-signal output that is high when any RIN input is a valid RS-232 level (above 2.7 V or below -2.7 V, or within ±0.3 V for less than 30 µs) and low when all RIN inputs are invalid."
},
{
"number": "22",
"name": "FORCEOFF",
"type": "input",
"description": "Auto power-down control input with a 0 V to 5.5 V range; driving it low powers off all drivers and receivers except ROUT2B and reduces supply current to 1 µA."
},
{
"number": "23",
"name": "FORCEON",
"type": "input",
"description": "Auto power-down control input with a 0 V to 5.5 V range; driving it high overrides automatic power down and keeps the drivers active."
},
{
"number": "24",
"name": "C1-",
"type": "passive",
"description": "Negative terminal of the voltage-doubler charge-pump capacitor, with the capacitor value set per the VCC versus capacitor table (Table 9-1)."
},
{
"number": "25",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device and the RS-232 serial-port connection."
},
{
"number": "26",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage of 3 V to 5.5 V (6 V absolute maximum)."
},
{
"number": "27",
"name": "V+",
"type": "power_out",
"description": "Positive charge-pump output voltage; absolute maximum rating of 7 V."
},
{
"number": "28",
"name": "C1+",
"type": "passive",
"description": "Positive terminal of the voltage-doubler charge-pump capacitor, with the capacitor value set per the VCC versus capacitor table (Table 9-1)."
}
],
"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 1 to 28 assignments and names come from the Pin Configuration figure and Table 5-1, which agree ; The datasheet does not give an electrical type for the charge-pump capacitor terminals (C1+, C1-, C2; The datasheet's pin table for ROUT2B (pin 20) is truncated at 'Always-active noninverting receiver o"
],
"pages_sent": 26,
"cost_usd": 0.114,
"at": "2026-10-08T17:06:13"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/trs3243",
"pages": 26,
"sha256": "fe9a6533b614250b",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"footprint": "viewers/footprint.html"
},
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"extents_mm": [
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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": "trs3243idbr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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"footprint_binding": "identity",
"sha256": "2777aa548ef1e415d4534e2dbadbd983b4ef4920968fa682fe9e731b2005ad24",
"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": [
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"viewers",
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"discovery_triggers": [
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],
"discovery_pitch": "TRS3243IDBR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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