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TRS3386ECPWR
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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 @@+# TRS3386ECPWR++**Texas Instruments** · RS232 ICs · TSSOP-20++TRS3386ECPWR 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 | C1+ | passive | Positive terminal of voltage-doubler charge-pump capacitor for external 0.1 to 0.33 μF capacitor. |+| 2 | V+ | power_out | Positive charge-pump supply output nominally 5.5 V for RS-232 driver circuit. |+| 3 | C1− | passive | Negative terminal of voltage-doubler charge-pump capacitor. |+| 4 | C2+ | passive | Positive terminal of inverting charge-pump capacitor for external 0.1 to 0.33 μF capacitor. |+| 5 | C2− | passive | Negative terminal of inverting charge-pump capacitor. |+| 6 | V− | power_out | Negative charge-pump supply output nominally −5.5 V for RS-232 driver circuit. |+| 7 | DIN1 | input | Driver input for TTL/CMOS logic levels referenced to VL with 0.5 V hysteresis. |+| 8 | DIN2 | input | Driver input for TTL/CMOS logic levels referenced to VL with 0.5 V hysteresis. |+| 9 | DIN3 | input | Driver input for TTL/CMOS logic levels referenced to VL with 0.5 V hysteresis. |+| 10 | ROUT2 | output | Receiver output swinging from 0 to VL with maximum 0.15 μs propagation delay. |+| 11 | ROUT1 | output | Receiver output swinging from 0 to VL with maximum 0.15 μs propagation delay. |+| 12 | VL | power_in | Logic supply input from 2.25 V to VCC for all CMOS inputs and outputs. |+| 13 | RIN2 | input | RS-232 receiver input accepting ±25 V with 3 to 7 kΩ input resistance. |+| 14 | RIN1 | input | RS-232 receiver input accepting ±25 V with 3 to 7 kΩ input resistance. |+| 15 | DOUT3 | output | RS-232 driver output swinging ±5.4 V typical with 0.15 μs skew on 3 kΩ load. |+| 16 | DOUT2 | output | RS-232 driver output swinging ±5.4 V typical with 0.15 μs skew on 3 kΩ load. |+| 17 | DOUT1 | output | RS-232 driver output swinging ±5.4 V typical with 0.15 μs skew on 3 kΩ load. |+| 18 | GND | power_in | Ground reference for all signal and supply voltages. |+| 19 | VCC | power_in | Supply voltage input from 3 V to 5.5 V for charge pump and logic circuits. |+| 20 | PWRDWN | input | Powerdown control input; logic low enables 1 μA shutdown mode, high enables normal 0.3 to 1 mA operation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Interface |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `TRS3386ECPWR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)+- 3D model files: `trs3386ecpwr-etched.step` / `trs3386ecpwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `trs3386ecpwr.step` / `trs3386ecpwr.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/trs3386e) (21 pp, sha256 `27ac23532b1b85b6`, retrieved 2026-10-07, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/trs3386ecpwr-datasheet.pdf)
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logic low enables 1 μA shutdown mode, high enables normal 0.3 to 1 mA operation."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 21,+ "cost_usd": 0.1348,+ "at": "2026-10-07T02:20:50"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/trs3386e",+ "pages": 21,+ "sha256": "27ac23532b1b85b6",+ "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": "trs3386ecpwr.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": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "trs3386ecpwr-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": "711ca215f85f03a993fba89e835a2667c1dbd4eb451b3f8cc2e4b2bd648f6cc1",+ "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]"+ }+}