# ISO722MDR

**Texas Instruments** · Digital Isolators · SOIC-8

ISO722MDR 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 | Power supply for side 1 (VCC1), specified from 3 V to 3.6 V for 3-V operation or 4.5 V to 5.5 V for 5-V operation. |
| 2 | IN | input | Logic input on the side 1 channel; for the ISO722M (CMOS VCC/2 thresholds) VIH is 0.7 × VCC to VCC and VIL is 0 to 0.3 × VCC. |
| 3 | VCC1 | power_in | Additional VCC1 power supply pin listed alongside pin 1, operating over the same 3 V to 5.5 V supply range. |
| 4 | GND1 | power_in | Ground connection for VCC1 (side 1 ground). |
| 5 | GND2 | power_in | Ground connection for VCC2 (side 2 ground). |
| 6 | OUT | output | Isolated logic output with 4 mA CMOS drive; if the dc-refresh pulse is not received for more than 4 μs, the failsafe circuit drives OUT to a logic-high state. |
| 7 | EN | input | Active-low output enable: OUT is enabled when EN is low or disconnected and placed in high-impedance when EN is high, with internal bias turned off to save power. |
| 8 | VCC2 | power_in | Power supply for side 2 (VCC2), specified from 3 V to 3.6 V for 3-V operation or 4.5 V to 5.5 V for 5-V operation. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ISO722MDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `iso722mdr-etched.step` / `iso722mdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso722mdr.step` / `iso722mdr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/iso722m.pdf) (36 pp, sha256 `6854dc84474e1003`, retrieved 2026-10-11, tier: manufacturer)
- **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](docs/iso722mdr-datasheet.pdf)