component
TRS3318EIPWR
Public Made by Adomby adom
Texas Instruments RS232 ICs, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# TRS3318EIPWR++**Texas Instruments** · RS232 ICs · TSSOP-20++TRS3318EIPWR from Texas Instruments, in a TSSOP-20. 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 | READY | output | Ready-to-transmit output, active high; it is enabled high when V− goes below −3.5 V and the device is ready to transmit. |+| 2 | C1+ | passive | Positive terminal of the voltage-doubler charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors. |+| 3 | V+ | power_out | Charge-pump output at 2 × VCC generated internally; it requires an external 0.1-µF reservoir capacitor per the typical application circuit. |+| 4 | C1− | passive | Negative terminal of the voltage-doubler charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors. |+| 5 | C2+ | passive | Positive terminal of the inverting charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors. |+| 6 | C2− | passive | Negative terminal of the inverting charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors. |+| 7 | V− | power_out | Charge-pump output at −2 × VCC generated internally; absolute maximum V− to GND is −7 V to 0.3 V. |+| 8 | DOUT2 | output | RS-232 driver output 2; absolute maximum DOUT to GND is ±13.2 V and the output is continuously short-circuit protected to GND. |+| 9 | RIN2 | input | RS-232 receiver input 2; the recommended receiver input voltage range is −25 V to 25 V. |+| 10 | ROUT2 | output | CMOS receiver output 2, referenced to VCC (absolute maximum −0.3 V to VCC + 0.3 V). |+| 11 | INVALID | output | Valid-signal detector output, active low; a logic high indicates a valid RS-232 level is present on a receiver input, and it is driven low when all receiver inputs stay between −0.3 V and 0.3 V for more than 30 µs. |+| 12 | DIN2 | input | CMOS driver input 2; with VCC = 2.5 V to 3 V it requires VIH of at least 0.7 × VCC and VIL of at most 0.3 × VCC, with a maximum input of 5.5 V. |+| 13 | DIN1 | input | CMOS driver input 1; with VCC = 2.5 V to 3 V it requires VIH of at least 0.7 × VCC and VIL of at most 0.3 × VCC, with a maximum input of 5.5 V. |+| 14 | FORCEON | input | Force-on input, active high; driving it high overrides auto-powerdown and keeps the transmitters on, provided FORCEOFF is high, with absolute maximum input −0.3 V to 6 V. |+| 15 | ROUT1 | output | CMOS receiver output 1, referenced to VCC (absolute maximum −0.3 V to VCC + 0.3 V). |+| 16 | RIN1 | input | RS-232 receiver input 1; the recommended receiver input voltage range is −25 V to 25 V. |+| 17 | DOUT1 | output | RS-232 driver output 1; absolute maximum DOUT to GND is ±13.2 V and the output is continuously short-circuit protected to GND. |+| 18 | GND | power_in | Ground reference for the device; VCC to GND absolute maximum is −0.3 V to 6 V. |+| 19 | VCC | power_in | Single-supply input of 2.25 V to 3 V; VCC to GND absolute maximum is −0.3 V to 6 V. |+| 20 | FORCEOFF | input | Force-off input, active low; driving it low powers down the transmitters and charge pump and overrides auto-powerdown and FORCEON, with absolute maximum input −0.3 V to 6 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Interface |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `TRS3318EIPWR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)+- 3D model files: `trs3318eipwr-etched.step` / `trs3318eipwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `trs3318eipwr.step` / `trs3318eipwr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/trs3318e) (23 pp, sha256 `3758ceb856a8087f`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).++[Datasheet PDF](docs/trs3318eipwr-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "trs3318eipwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "trs3318eipwr.kicad_sym",+ "trs3318eipwr.kicad_mod",+ "trs3318eipwr.glb",+ "trs3318eipwr.step",+ "trs3318eipwr.lbr",+ "docs/hero.png",+ "docs/trs3318eipwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "trs3318eipwr-hero.glb",+ "trs3318eipwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "TRS3318EIPWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-20",+ "pin_count": 20,+ "category": "Interface",+ "subcategory": "RS232 ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/trs3318e",+ "parts": {+ "symbol": "trs3318eipwr.kicad_sym",+ "footprint": "trs3318eipwr.kicad_mod",+ "model_3d": "trs3318eipwr-hero.glb",+ "model_3d_plain": "trs3318eipwr.glb",+ "model_3d_step": "trs3318eipwr-etched.step",+ "model_3d_step_plain": "trs3318eipwr.step",+ "lbr": "trs3318eipwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2671389",+ "digikey": "296-25062-2-ND",+ "mouser": "595-TRS3318EIPWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T16:02:43Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-25062-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TRS3318EIPWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "READY",+ "type": "output",+ "description": "Ready-to-transmit output, active high; it is enabled high when V− goes below −3.5 V and the device is ready to transmit."+ },+ {+ "number": "2",+ "name": "C1+",+ "type": "passive",+ "description": "Positive terminal of the voltage-doubler charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors."+ },+ {+ "number": "3",+ "name": "V+",+ "type": "power_out",+ "description": "Charge-pump output at 2 × VCC generated internally; it requires an external 0.1-µF reservoir capacitor per the typical application circuit."+ },+ {+ "number": "4",+ "name": "C1−",+ "type": "passive",+ "description": "Negative terminal of the voltage-doubler charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors."+ },+ {+ "number": "5",+ "name": "C2+",+ "type": "passive",+ "description": "Positive terminal of the inverting charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors."+ },+ {+ "number": "6",+ "name": "C2−",+ "type": "passive",+ "description": "Negative terminal of the inverting charge-pump capacitor; the datasheet specifies four 0.1-µF charge-pump capacitors."+ },+ {+ "number": "7",+ "name": "V−",+ "type": "power_out",+ "description": "Charge-pump output at −2 × VCC generated internally; absolute maximum V− to GND is −7 V to 0.3 V."+ },+ {+ "number": "8",+ "name": "DOUT2",+ "type": "output",+ "description": "RS-232 driver output 2; absolute maximum DOUT to GND is ±13.2 V and the output is continuously short-circuit protected to GND."+ },+ {+ "number": "9",+ "name": "RIN2",+ "type": "input",+ "description": "RS-232 receiver input 2; the recommended receiver input voltage range is −25 V to 25 V."+ },+ {+ "number": "10",+ "name": "ROUT2",+ "type": "output",+ "description": "CMOS receiver output 2, referenced to VCC (absolute maximum −0.3 V to VCC + 0.3 V)."+ },+ {+ "number": "11",+ "name": "INVALID",+ "type": "output",+ "description": "Valid-signal detector output, active low; a logic high indicates a valid RS-232 level is present on a receiver input, and it is driven low when all receiver inputs stay between −0.3 V and 0.3 V for more than 30 µs."+ },+ {+ "number": "12",+ "name": "DIN2",+ "type": "input",+ "description": "CMOS driver input 2; with VCC = 2.5 V to 3 V it requires VIH of at least 0.7 × VCC and VIL of at most 0.3 × VCC, with a maximum input of 5.5 V."+ },+ {+ "number": "13",+ "name": "DIN1",+ "type": "input",+ "description": "CMOS driver input 1; with VCC = 2.5 V to 3 V it requires VIH of at least 0.7 × VCC and VIL of at most 0.3 × VCC, with a maximum input of 5.5 V."+ },+ {+ "number": "14",+ "name": "FORCEON",+ "type": "input",+ "description": "Force-on input, active high; driving it high overrides auto-powerdown and keeps the transmitters on, provided FORCEOFF is high, with absolute maximum input −0.3 V to 6 V."+ },+ {+ "number": "15",+ "name": "ROUT1",+ "type": "output",+ "description": "CMOS receiver output 1, referenced to VCC (absolute maximum −0.3 V to VCC + 0.3 V)."+ },+ {+ "number": "16",+ "name": "RIN1",+ "type": "input",+ "description": "RS-232 receiver input 1; the recommended receiver input voltage range is −25 V to 25 V."+ },+ {+ "number": "17",+ "name": "DOUT1",+ "type": "output",+ "description": "RS-232 driver output 1; absolute maximum DOUT to GND is ±13.2 V and the output is continuously short-circuit protected to GND."+ },+ {+ "number": "18",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device; VCC to GND absolute maximum is −0.3 V to 6 V."+ },+ {+ "number": "19",+ "name": "VCC",+ "type": "power_in",+ "description": "Single-supply input of 2.25 V to 3 V; VCC to GND absolute maximum is −0.3 V to 6 V."+ },+ {+ "number": "20",+ "name": "FORCEOFF",+ "type": "input",+ "description": "Force-off input, active low; driving it low powers down the transmitters and charge pump and overrides auto-powerdown and FORCEON, with absolute maximum input −0.3 V to 6 V."+ }+ ],+ "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 numbers are taken from the Terminal Functions table on page 3 and cross-checked against the TSSO; Some descriptions combine the terminal-function text with absolute-maximum or recommended-operating "+ ],+ "pages_sent": 23,+ "cost_usd": 0.0954,+ "at": "2026-10-08T16:02:21"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/trs3318e",+ "pages": 23,+ "sha256": "3758ceb856a8087f",+ "source_tier": "lcsc"+ },+ "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": [+ {+ "file": "trs3318eipwr.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)"+ },+ {+ "file": "trs3318eipwr-etched.step",+ "role": "eda",+ "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": "5e2a1ccc4f3b396ac4422367228384af7a9efc7f5cd731a7041b0b9685c77620",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}