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ISO7742FQDWRQ1

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Texas Instruments Digital Isolators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ISO7742FQDWRQ1

Texas Instruments · Digital Isolators · SOIC-16

ISO7742FQDWRQ1 from Texas Instruments, in a SOIC-16. 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; the recommended VCC1 supply range is 2.25 V to 5.5 V, with a 0.1 µF decoupling capacitor to GND1 placed within 2 mm of the pin.
2 GND1 power_in Ground connection for VCC1 (side 1); one of two side-1 ground pins, both of which must be connected.
3 INA input Logic input for channel A on side 1, which is transmitted across the isolation barrier to OUTA.
4 INB input Logic input for channel B on side 1, which is transmitted across the isolation barrier to OUTB.
5 OUTC output Logic output for channel C on side 2, driven from INC through the isolation barrier; in the high-impedance state when the enable is low.
6 OUTD output Logic output for channel D on side 2, driven from IND through the isolation barrier; in the high-impedance state when the enable is low.
7 EN1 input Output enable for side 1: high or open enables the side-1 outputs, and low places them in the high-impedance state.
8 GND1 power_in Ground connection for VCC1 (side 1); the second side-1 ground pin.
9 GND2 power_in Ground connection for VCC2 (side 2); one of two side-2 ground pins, both of which must be connected.
10 EN2 input Output enable for side 2: high or open enables the side-2 outputs, and low places them in the high-impedance state.
11 IND input Logic input for channel D on side 2, which is transmitted across the isolation barrier to OUTD.
12 INC input Logic input for channel C on side 2, which is transmitted across the isolation barrier to OUTC.
13 OUTB output Logic output for channel B on side 2, driven from INB through the isolation barrier; in the high-impedance state when the enable is low.
14 OUTA output Logic output for channel A on side 2, driven from INA through the isolation barrier; in the high-impedance state when the enable is low.
15 GND2 power_in Ground connection for VCC2 (side 2); the second side-2 ground pin.
16 VCC2 power_in Side-2 supply pin; the recommended VCC2 supply range is 2.25 V to 5.5 V, with a 0.1 µF decoupling capacitor to GND2 placed within 2 mm of the pin.

Key specifications

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

CAD (KiCad official)

  • Symbol: ISO7742FQDWRQ1
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: iso7742fqdwrq1-etched.step / iso7742fqdwrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); iso7742fqdwrq1.step / iso7742fqdwrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (55 pp, sha256 3fc23e4a8eb8bc39, retrieved 2026-10-11, 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