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ISO7741FBDWR
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Texas Instruments Digital Isolators, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# ISO7741FBDWR++**Texas Instruments** · Digital Isolators · SOIC-16-300mil++ISO7741FBDWR from Texas Instruments, in a SOIC-16-300mil. 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 | VCC1 | power_in | Side 1 supply pin; VCC1 operates from 2.25 V to 5.5 V and should be decoupled to GND1 with 0.1 µF placed close to the pin. |+| 2 | GND1 | power_in | Side 1 ground connection for VCC1 (one of two GND1 pins, both connected together). |+| 3 | INA | input | Channel A data input on side 1; VIH is 0.7 x VCCI minimum and VIL is 0.3 x VCCI maximum. |+| 4 | INB | input | Channel B data input on side 1; VIH is 0.7 x VCCI minimum and VIL is 0.3 x VCCI maximum. |+| 5 | INC | input | Channel C data input on side 1; VIH is 0.7 x VCCI minimum and VIL is 0.3 x VCCI maximum. |+| 6 | OUTD | output | Channel D output on side 1 (the reverse-direction channel of ISO7741, whose input IND is on pin 11); output drives to VCCO with VOH of at least VCCO - 0.4 V and VOL of at most 0.4 V at 5 V. |+| 7 | EN1 | input | Output enable for side 1: when EN1 is high or open the side 1 outputs are enabled, and when EN1 is low they are forced to high impedance. |+| 8 | GND1 | power_in | Side 1 ground connection for VCC1 (one of two GND1 pins, both connected together). |+| 9 | GND2 | power_in | Side 2 ground connection for VCC2 (one of two GND2 pins, both connected together). |+| 10 | EN2 | input | Output enable for side 2: when EN2 is high or open the side 2 outputs are enabled, and when EN2 is low they are forced to high impedance. |+| 11 | IND | input | Channel D data input on side 2 (the reverse-direction channel of ISO7741); VIH is 0.7 x VCCI minimum and VIL is 0.3 x VCCI maximum. |+| 12 | OUTC | output | Channel C output on side 2; VOH is at least VCCO - 0.4 V and VOL is at most 0.4 V at 5 V. |+| 13 | OUTB | output | Channel B output on side 2; VOH is at least VCCO - 0.4 V and VOL is at most 0.4 V at 5 V. |+| 14 | OUTA | output | Channel A output on side 2; VOH is at least VCCO - 0.4 V and VOL is at most 0.4 V at 5 V. |+| 15 | GND2 | power_in | Side 2 ground connection for VCC2 (one of two GND2 pins, both connected together). |+| 16 | VCC2 | power_in | Side 2 supply pin; VCC2 operates from 2.25 V to 5.5 V and should be decoupled to GND2 with 0.1 µF placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16-300mil |+| Category | Signal Isolation Devices |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `ISO7741FBDWR`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)+- 3D model files: `iso7741fbdwr-etched.step` / `iso7741fbdwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso7741fbdwr.step` / `iso7741fbdwr.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/iso7740) (51 pp, sha256 `d6ac6b90609c88c4`, retrieved 2026-10-08, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/iso7741fbdwr-datasheet.pdf)
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The datasheet does not; Table 4-1 and Figure 4-2 do not explicitly label channel D as the reverse channel. The direction of ; Pin descriptions for VOH/VOL and VIH/VIL limits are quoted from the 5 V electrical characteristics a"+ ],+ "pages_sent": 28,+ "cost_usd": 0.1392,+ "at": "2026-10-08T03:43:26"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/iso7740",+ "pages": 51,+ "sha256": "d6ac6b90609c88c4",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "iso7741fbdwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "iso7741fbdwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "3aec7422544578e91d8c18300fdfdfd4a828a15acfdba9bdb7f74232ae6c0f5c",+ "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]"+ }+}