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ISO6720BDR

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by Ray

Texas Instruments Digital Isolators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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ISO6720BDR

Texas Instruments · Digital Isolators · SOIC-8

ISO6720BDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VCC1 power_in Power supply for side 1 (input side, channels A and B). Operating range 1.71 V to 1.89 V or 2.25 V to 5.5 V; absolute max 6 V referenced to GND1. Bypass locally to GND1.
2 INA input Digital logic input for isolation channel A, referenced to VCC1/GND1. VIH >= 0.7 x VCC1, VIL <= 0.3 x VCC1. Drives the isolated OUTA on side 2.
3 INB input Digital logic input for isolation channel B, referenced to VCC1/GND1. VIH >= 0.7 x VCC1, VIL <= 0.3 x VCC1. Drives the isolated OUTB on side 2.
4 GND1 power_in Ground reference for side 1 (VCC1, INA, INB).
5 GND2 power_in Ground reference for side 2 (VCC2, OUTA, OUTB). Isolated from GND1 by the internal SiO2 capacitive isolation barrier.
6 OUTB output Digital logic output for isolation channel B, referenced to VCC2/GND2. Push-pull CMOS output; IOH up to -4 mA and IOL up to 4 mA at VCC2 = 5 V. Default-low output on loss of input power/signal (B suffix).
7 OUTA output Digital logic output for isolation channel A, referenced to VCC2/GND2. Push-pull CMOS output; IOH up to -4 mA and IOL up to 4 mA at VCC2 = 5 V. Default-low output on loss of input power/signal (B suffix).
8 VCC2 power_in Power supply for side 2 (output side, OUTA and OUTB). Operating range 1.71 V to 1.89 V or 2.25 V to 5.5 V; absolute max 6 V referenced to GND2. Bypass locally to GND2.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Signal Isolation Devices
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • ISO6720BDR
  • ISO6721BDR
  • ISO6721BD
  • ISO6721RBDR
  • ISO6721RBD

CAD (KiCad official)

  • Symbol: ISO6720BDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (48 pp, sha256 342ebe8d7d5e069e, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF