# ATTINY9-TSHR

**Microchip Tech** · Microcontroller Units (MCUs/MPUs/SOCs) · SOT-23-6

ATTINY9-TSHR from Microchip Tech, in a SOT-23-6. 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 | PB0 | bidirectional | Port B bit 0, a bidirectional I/O pin with a selectable internal pull-up, with alternate functions PCINT0, TPIDATA, OC0A, ADC0 and AIN0. |
| 2 | GND | power_in | Ground. |
| 3 | PB1 | bidirectional | Port B bit 1, a bidirectional I/O pin with a selectable internal pull-up, with alternate functions PCINT1, TPICLK, CLKI, ICP0, OC0B, ADC1 and AIN1. |
| 4 | PB2 | bidirectional | Port B bit 2, a bidirectional I/O pin with a selectable internal pull-up, with alternate functions T0, CLKO, PCINT2, INT0 and ADC2. |
| 5 | VCC | power_in | Digital supply voltage, operating range 1.8 - 5.5V. |
| 6 | PB3/RESET | bidirectional | Port B bit 3, usable as a weak I/O pin or as the active-low reset input where a low level longer than the minimum pulse length generates a reset, with alternate functions PCINT3 and ADC3. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-6 |
| Category | Single Chip Microcomputer/Microcontroller |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `ATTINY9-TSHR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `attiny9-tshr-etched.step` / `attiny9-tshr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `attiny9-tshr.step` / `attiny9-tshr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/attiny9-tshr-datasheet.pdf) (17 pp, sha256 `b6b867f3161cda6d`, retrieved 2026-11-02, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/attiny9-tshr-datasheet.pdf)