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ISO7742FDWR

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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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ISO7742FDWR

Texas Instruments · Digital Isolators · SOIC-16-300mil

ISO7742FDWR 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 (input-side) power supply; the recommended supply range is 2.25 V to 5.5 V, and a 0.1 µF decoupling capacitor should be placed as close to this pin as possible.
2 GND1 power_in Ground connection for VCC1, the side-1 supply.
3 INA input Logic input for channel A on side 1; it is referenced to VCCI, with VIH of at least 0.7 × VCCI and VIL of at most 0.3 × VCCI.
4 INB input Logic input for channel B on side 1; it is referenced to VCCI, with VIH of at least 0.7 × VCCI and VIL of at most 0.3 × VCCI.
5 OUTC output Output for channel C on side 1, which is a reverse channel driven from side 2; the output goes high impedance when EN1 is low, and for the F-suffix device it defaults low when its input is open or unpowered.
6 OUTD output Output for channel D on side 1, which is a reverse channel driven from side 2; the output goes high impedance when EN1 is low, and for the F-suffix device it defaults low when its input is open or unpowered.
7 EN1 input Output enable 1: when EN1 is high or open, the side-1 outputs (OUTC and OUTD) are enabled, and when EN1 is low they are high impedance.
8 GND1 power_in Ground connection for VCC1, the side-1 supply.
9 GND2 power_in Ground connection for VCC2, the side-2 supply.
10 EN2 input Output enable 2: when EN2 is high or open, the side-2 outputs (OUTA and OUTB) are enabled, and when EN2 is low they are high impedance.
11 IND input Logic input for channel D on side 2; it is referenced to VCCI, with VIH of at least 0.7 × VCCI and VIL of at most 0.3 × VCCI.
12 INC input Logic input for channel C on side 2; it is referenced to VCCI, with VIH of at least 0.7 × VCCI and VIL of at most 0.3 × VCCI.
13 OUTB output Output for forward channel B on side 2; the output goes high impedance when EN2 is low, and for the F-suffix device it defaults low when its input is open or unpowered.
14 OUTA output Output for forward channel A on side 2; the output goes high impedance when EN2 is low, and for the F-suffix device it defaults low when its input is open or unpowered.
15 GND2 power_in Ground connection for VCC2, the side-2 supply.
16 VCC2 power_in Side-2 (output-side) power supply; the recommended supply range is 2.25 V to 5.5 V, and a 0.1 µF decoupling capacitor should be placed as close to this pin as possible.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16-300mil
Category Signal Isolation Devices
Pins 16

CAD (KiCad official)

  • Symbol: ISO7742FDWR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
  • 3D model files: iso7742fdwr-etched.step / iso7742fdwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); iso7742fdwr.step / iso7742fdwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (51 pp, sha256 d6ac6b90609c88c4, retrieved 2026-10-10, 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