# ATTINY414-SSF

**Microchip Tech** · Microcontrollers (MCU/MPU/SOC) · SOIC-14

ATTINY414-SSF from Microchip Tech, in a SOIC-14. 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 | VDD | power_in | Supply pin; the device operates from 1.8 V to 5.5 V, with operation guaranteed down to 1.8 V or VBOD (BODLEVEL=1.8 V), whichever is lower. |
| 2 | PA4 | bidirectional | General purpose I/O pin PA4 that also carries ADC0 analog input AIN4 and PTC line X0/Y0 per the multiplexing table. |
| 3 | PA5 | bidirectional | General purpose I/O pin PA5 that also carries ADC0 analog input AIN5 and PTC line X1/Y1 per the multiplexing table. |
| 4 | PA6 | bidirectional | General purpose I/O pin PA6 that also carries ADC0 analog input AIN6, PTC line X2/Y2, the DAC analog output OUT, and the AC0 negative input AINN0. |
| 5 | PA7 | bidirectional | General purpose I/O pin PA7 that also carries ADC0 analog input AIN7, PTC line X3/Y3, and the AC0 positive input AINP0. |
| 6 | PB3 | bidirectional | General purpose I/O pin PB3 that is also the 32.768 kHz crystal oscillator connection TOSC1 per Table 5-1. |
| 7 | PB2 | bidirectional | General purpose I/O pin PB2 that is also the 32.768 kHz crystal oscillator connection TOSC2 and an event output EVOUT1 per Table 5-1. |
| 8 | PB1 | bidirectional | General purpose I/O pin PB1 that also carries ADC0 analog input AIN10 and PTC line X4/Y4 per the multiplexing table. |
| 9 | PB0 | bidirectional | General purpose I/O pin PB0 that also carries ADC0 analog input AIN11 and PTC line X5/Y5 per the multiplexing table. |
| 10 | PA0/RESET/UPDI | bidirectional | Multiplexed pin that is GPIO PA0, the RESET input, or the UPDI programming/debug interface, selected by the RSTPINCFG fuse; it also carries ADC0 input AIN0. |
| 11 | PA1 | bidirectional | General purpose I/O pin PA1 that also carries the BREAK function, ADC0 analog input AIN1, and USART0 TXD. |
| 12 | PA2 | bidirectional | General purpose I/O pin PA2 that also carries event output EVOUT0, ADC0 analog input AIN2, and USART0 RxD. |
| 13 | PA3 | bidirectional | General purpose I/O pin PA3 that also carries external clock input EXTCLK and ADC0 analog input AIN3. |
| 14 | GND | power_in | Ground reference for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-14 |
| Category | Embedded Processors & Controllers |
| Pins | 14 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power supply operational range |  | 1.8 |  | 5.5 | V | Industrial (-40°C to +125°C), ordering code ATtiny414-SSFR | 12 |
| Operating temperature range |  | -40 |  | 125 | °C | Industrial, ordering code ATtiny414-SSFR (temperature graded device option) | 12 |
| Speed grade: frequency at 4.5V to 5.5V |  | 0 |  | 20 | MHz | VDD 4.5V - 5.5V | 2 |
| Speed grade: frequency at 2.7V to 5.5V |  | 0 |  | 10 | MHz | VDD 2.7V - 5.5V | 2 |
| Speed grade: frequency at 1.8V to 5.5V |  | 0 |  | 5 | MHz | VDD 1.8V - 5.5V | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | configurations, including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. | 382 |

## CAD (KiCad official)

- Symbol: `ATTINY414-SSF`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `attiny414-ssf-etched.step` / `attiny414-ssf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `attiny414-ssf.step` / `attiny414-ssf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589016392246550529) (497 pp, sha256 `cc76215d84e2baef`, retrieved 2026-10-18, tier: lcsc)
- **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/attiny414-ssf-datasheet.pdf)