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ISO7021DR
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
markdownISO7021DR
Texas Instruments · Digital Isolators · SOIC-8
ISO7021DR 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 accepting 1.71V to 1.89V or 2.25V to 5.5V with 4.8μA quiescent current at 3.3V |
| 2 | OUTA | output | Digital output for channel A with output current ±4mA at 5V supply across 3000VRMS isolation barrier |
| 3 | INB | input | Digital input for channel B with input thresholds of 0.7×VCCI (high) and 0.3×VCCI (low) |
| 4 | GND1 | power_in | Ground return for power supply side 1 |
| 5 | GND2 | power_in | Ground return for power supply side 2 |
| 6 | OUTB | output | Digital output for channel B with output current ±4mA at 5V supply across 3000VRMS isolation barrier |
| 7 | INA | input | Digital input for channel A with input thresholds of 0.7×VCCI (high) and 0.3×VCCI (low) |
| 8 | VCC2 | power_in | Power supply for side 2 accepting 1.71V to 1.89V or 2.25V to 5.5V with 4.8μA quiescent current at 3.3V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Signal Isolation Devices |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
ISO7021DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
iso7021dr-etched.step/iso7021dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7021dr.step/iso7021dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
e962dad91a272d72, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).