component
SN75LP1185DBR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# SN75LP1185DBR++**Texas Instruments** · RS232 ICs · SSOP-20-208mil++SN75LP1185DBR from Texas Instruments, in a SSOP-20-208mil. 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 | VDD | power_in | Positive supply voltage, recommended 9 V to 15 V (12 V nominal) and absolute maximum 15 V; VCC cannot be greater than VDD. |+| 2 | RA1 | input | Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V. |+| 3 | RA2 | input | Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V. |+| 4 | RA3 | input | Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V. |+| 5 | DY1 | output | Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage. |+| 6 | DY2 | output | Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage. |+| 7 | RA4 | input | Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V. |+| 8 | DY3 | output | Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage. |+| 9 | RA5 | input | Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V. |+| 10 | VSS | power_in | Negative supply voltage, recommended -9 V to -15 V (-12 V nominal) and absolute maximum -15 V. |+| 11 | GND | power_in | Network ground terminal, the reference for all device voltage values. |+| 12 | RY5 | output | Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V. |+| 13 | DA3 | input | Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V. |+| 14 | RY4 | output | Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V. |+| 15 | DA2 | input | Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V. |+| 16 | DA1 | input | Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V. |+| 17 | RY3 | output | Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V. |+| 18 | RY2 | output | Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V. |+| 19 | RY1 | output | Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V. |+| 20 | VCC | power_in | Logic supply voltage, recommended 4.75 V to 5.25 V (5 V nominal), and must not exceed VDD. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-20-208mil |+| Category | Interface |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN75LP1185DBR`+- Footprint: `Package_SO:SSOP-20_5.3x7.2mm_P0.65mm`+- 3D model: SSOP-20-208mil (KiCad packages3D, STEP)+- 3D model files: `sn75lp1185dbr-etched.step` / `sn75lp1185dbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn75lp1185dbr.step` / `sn75lp1185dbr.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/sn75lp1185) (19 pp, sha256 `cd9ab4e418800e26`, retrieved 2026-10-07, 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/sn75lp1185dbr-datasheet.pdf)
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VCC cannot be greater than VDD."+ },+ {+ "number": "2",+ "name": "RA1",+ "type": "input",+ "description": "Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V."+ },+ {+ "number": "3",+ "name": "RA2",+ "type": "input",+ "description": "Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V."+ },+ {+ "number": "4",+ "name": "RA3",+ "type": "input",+ "description": "Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V."+ },+ {+ "number": "5",+ "name": "DY1",+ "type": "output",+ "description": "Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage."+ },+ {+ "number": "6",+ "name": "DY2",+ "type": "output",+ "description": "Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage."+ },+ {+ "number": "7",+ "name": "RA4",+ "type": "input",+ "description": "Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V."+ },+ {+ "number": "8",+ "name": "DY3",+ "type": "output",+ "description": "Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage."+ },+ {+ "number": "9",+ "name": "RA5",+ "type": "input",+ "description": "Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V."+ },+ {+ "number": "10",+ "name": "VSS",+ "type": "power_in",+ "description": "Negative supply voltage, recommended -9 V to -15 V (-12 V nominal) and absolute maximum -15 V."+ },+ {+ "number": "11",+ "name": "GND",+ "type": "power_in",+ "description": "Network ground terminal, the reference for all device voltage values."+ },+ {+ "number": "12",+ "name": "RY5",+ "type": "output",+ "description": "Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V."+ },+ {+ "number": "13",+ "name": "DA3",+ "type": "input",+ "description": "Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V."+ },+ {+ "number": "14",+ "name": "RY4",+ "type": "output",+ "description": "Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V."+ },+ {+ "number": "15",+ "name": "DA2",+ "type": "input",+ "description": "Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V."+ },+ {+ "number": "16",+ "name": "DA1",+ "type": "input",+ "description": "Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V."+ },+ {+ "number": "17",+ "name": "RY3",+ "type": "output",+ "description": "Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V."+ },+ {+ "number": "18",+ "name": "RY2",+ "type": "output",+ "description": "Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V."+ },+ {+ "number": "19",+ "name": "RY1",+ "type": "output",+ "description": "Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Logic supply voltage, recommended 4.75 V to 5.25 V (5 V nominal), and must not exceed VDD."+ }+ ],+ "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 gives the DB (SSOP-20) pinout only as a shared top-view figure for the DB, DW and N pa; The 208 mil body width named in the package hint does not appear in the datasheet. The DB package is; Pin types for the RA, RY, DA and DY signals are inferred from their function (receiver/driver inputs"+ ],+ "pages_sent": 19,+ "cost_usd": 0.0903,+ "at": "2026-10-07T22:23:42"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn75lp1185",+ "pages": 19,+ "sha256": "cd9ab4e418800e26",+ "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": "sn75lp1185dbr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 7.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn75lp1185dbr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 7.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "78704f79a37c034aa70c76cd3968f1ae109fec3e070b3afbb2048c47b983561c",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}