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ISO7420MDR
Public Made by Adomby adom
Texas Instruments Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownISO7420MDR
Texas Instruments · Digital Isolators · SOIC-8
ISO7420MDR from Texas Instruments, in a SOIC-8. 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 | Input-side supply for VCC1, specified at 3.15 V to 3.45 V for 3.3-V operation or 4.75 V to 5.25 V for 5-V operation, with absolute maximum -0.5 V to 6 V. |
| 2 | INA | input | Channel A logic input with TTL thresholds (VIH minimum 2 V, VIL maximum 0.8 V); inputs are 5-V tolerant when supplied from a 3.3-V supply. |
| 3 | INB | input | Channel B logic input with TTL thresholds (VIH minimum 2 V, VIL maximum 0.8 V); inputs are 5-V tolerant when supplied from a 3.3-V supply. |
| 4 | GND1 | power_in | Ground connection for VCC1 (input-side ground). |
| 5 | GND2 | power_in | Ground connection for VCC2 (output-side ground). |
| 6 | OUTB | output | Channel B logic output; recommended output current limits are IOH -4 mA and IOL 4 mA. |
| 7 | OUTA | output | Channel A logic output; recommended output current limits are IOH -4 mA and IOL 4 mA. |
| 8 | VCC2 | power_in | Output-side supply for VCC2, specified at 3.15 V to 3.45 V for 3.3-V operation or 4.75 V to 5.25 V for 5-V operation, with absolute maximum -0.5 V to 6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Signal Isolation Devices |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
ISO7420MDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
iso7420mdr-etched.step/iso7420mdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7420mdr.step/iso7420mdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
134345938abaca3b, retrieved 2026-10-11, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).