# DS18B20U+T&R

**Analog Devices Inc Maxim Integrated** · Temperature Sensors · MSOP-8

DS18B20U+T&R from Analog Devices Inc Maxim Integrated, in a MSOP-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 | DQ | bidirectional | Open-drain 1-Wire interface providing bidirectional data communication and parasite power capability, operating at 3.0V to 5.5V with input logic-low threshold VIL = -0.3 to +0.8V and logic-high threshold VIH = +2.2 to VDD+0.3V. |
| 2 | N.C. | unconnected | No connection; leave unconnected on printed circuit board. |
| 3 | N.C. | unconnected | No connection; leave unconnected on printed circuit board. |
| 4 | GND | power_in | Ground reference establishing 0V baseline for all voltage measurements. |
| 5 | N.C. | unconnected | No connection; leave unconnected on printed circuit board. |
| 6 | N.C. | unconnected | No connection; leave unconnected on printed circuit board. |
| 7 | N.C. | unconnected | No connection; leave unconnected on printed circuit board. |
| 8 | VDD | power_in | Optional external power supply input accepting 3.0V to 5.5V; must be connected to ground to enable parasite power mode using internal charge pump powered from DQ pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | MSOP-8 |
| Category | Sensors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `DS18B20U+T&R`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ds18b20u-t-r-etched.step` / `ds18b20u-t-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds18b20u-t-r.step` / `ds18b20u-t-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices Inc Maxim Integrated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881635492442112) (20 pp, sha256 `675a10b602ac6ff8`, retrieved 2026-09-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/ds18b20u-t-r-datasheet.pdf)