# ATTINY9-TS8R

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

ATTINY9-TS8R 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 bi-directional I/O pin with selectable internal pull-up and high sink and source capability, with alternate functions AIN0, OC0A, TPIDATA and PCINT0 (ADC0 is not available on the ATtiny9). |
| 2 | GND | power_in | Ground. |
| 3 | PB1 | bidirectional | Port B bit 1, a bi-directional I/O pin with selectable internal pull-up and high sink and source capability, with alternate functions AIN1, OC0B, ICP0, CLKI, TPICLK and PCINT1 (ADC1 is not available on the ATtiny9). |
| 4 | PB2 | bidirectional | Port B bit 2, a bi-directional I/O pin with selectable internal pull-up and high sink and source capability, with alternate functions T0, CLKO, INT0 and PCINT2 (ADC2 is not available on the ATtiny9). |
| 5 | VCC | power_in | Digital supply voltage, 1.8 - 5.5V operating range. |
| 6 | PB3/RESET | bidirectional | Reset input where a low level longer than the minimum pulse length generates a reset, usable as a weak I/O pin (PB3/PCINT3) when the reset function is disabled (ADC3 is not available on the ATtiny9). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-6 |
| Category | Embedded Processors & Controllers |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating voltage | VCC | 1.8 |  | 5.5 | V | Operating voltage range | 2 |
| Speed grade |  | 0 |  | 4 | MHz | 1.8-5.5 V | 2 |
| Speed grade |  | 0 |  | 8 | MHz | 2.7-5.5 V | 2 |
| Speed (extended temperature grade) |  |  |  | 10 | MHz | Extended temperature (-40°C to 125°C) grade, speed column of ordering table | 7 |
| Operating temperature (extended) |  | -40 |  | 125 | °C | Extended temperature grade (TS8R ordering code) | 7 |
| Power-down mode current |  |  |  | 0.1 | µA | Power-down mode, 1.8 V | 2 |
| Active mode current |  |  | 200 |  | µA | 1 MHz, 1.8 V, active mode | 2 |
| Idle mode current |  |  | 25 |  | µA | 1 MHz, 1.8 V, idle mode | 2 |

## CAD (KiCad official)

- Symbol: `ATTINY9-TS8R`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `attiny9-ts8r-etched.step` / `attiny9-ts8r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `attiny9-ts8r.step` / `attiny9-ts8r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/attiny9-ts8r-datasheet.pdf) (17 pp, sha256 `8b2503189de98fdf`, retrieved 2026-11-02, 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/attiny9-ts8r-datasheet.pdf)