component
ATTINY404-SSNR
Public Made by Adomby adom
Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownATTINY404-SSNR
Microchip Tech · Microcontrollers (MCU/MPU/SOC) · SOIC-14
ATTINY404-SSNR 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 | Input supply pin for the device; the datasheet gives an operating supply range of 1.8 V to 5.5 V. |
| 2 | PA4 | bidirectional | Bidirectional GPIO pin PA4, multiplexed with AIN4, USART0 XDIR, SPI0 SS, TCA0 WO4 and LUT0-OUT functions. |
| 3 | PA5 | bidirectional | Bidirectional GPIO pin PA5, multiplexed with AIN5, AC0 OUT, TCA0 WO5 and WO functions. |
| 4 | PA6 | bidirectional | Bidirectional GPIO pin PA6, multiplexed with AIN6, AINN0 and SPI0 MOSI functions. |
| 5 | PA7 | bidirectional | Bidirectional GPIO pin PA7, multiplexed with AIN7, AINP0, SPI0 MISO and LUT1-OUT functions. |
| 6 | PB3 | bidirectional | Bidirectional GPIO pin PB3, multiplexed with USART0 RxD and TCA0 WO0 functions. |
| 7 | PB2 | bidirectional | Bidirectional GPIO pin PB2, multiplexed with EVOUT1, USART0 TxD and TCA0 WO2 functions. |
| 8 | PB1 | bidirectional | Bidirectional GPIO pin PB1, multiplexed with AIN10, USART0 XCK, TWI0 SDA and TCA0 WO1 functions. |
| 9 | PB0 | bidirectional | Bidirectional GPIO pin PB0, multiplexed with AIN11, USART0 XDIR, TWI0 SCL and TCA0 WO0 functions. |
| 10 | PA0/RESET/UPDI | bidirectional | Bidirectional GPIO pin PA0, multiplexed with AIN0 and LUT0-IN0; the same pin is the RESET input and the single-pin UPDI programming and debug interface. |
| 11 | PA1 | bidirectional | Bidirectional GPIO pin PA1, multiplexed with AIN1, USART0 TXD, SPI0 MOSI, TWI0 SDA and LUT0-IN1 functions. |
| 12 | PA2 | bidirectional | Bidirectional GPIO pin PA2, multiplexed with EVOUT0, AIN2, USART0 RxD, SPI0 MISO, TWI0 SCL and LUT0-IN2 functions. |
| 13 | PA3/EXTCLK | bidirectional | Bidirectional GPIO pin PA3, multiplexed with the EXTCLK external clock input, AIN3, USART0 XCK, SPI0 SCK and WO3 functions. |
| 14 | GND | power_in | Ground reference pin 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 (ATtiny404-SSNR, 14-pin SOIC150, Tape & Reel) | 1.8 | 5.5 | V | Industrial (-40°C +105°C) | 11 | ||
| Operating temperature range (ATtiny404-SSNR) | -40 | 105 | °C | Industrial (-40°C +105°C); SSFR (125°C) variant excluded | 11 | ||
| Maximum operating frequency | 0 | 5 | MHz | @ 1.8V, 5.5V | 2 | ||
| Maximum operating frequency | 0 | 10 | MHz | @ 2.7V, 5.5V | 2 | ||
| Maximum operating frequency | 0 | 20 | MHz | @ 4.5V, 5.5V | 2 | ||
| 16/20 MHz internal oscillator (OSC20M) accuracy | -3 | 3 | % | Over full temperature and voltage range | 1 | ||
| 16/20 MHz internal oscillator (OSC20M) drift | -2 | 2 | % | Over limited temperature and 1.8 ... 3.6V voltage range | 1 | ||
| 32 KHz ultra low-power internal oscillator (OSCULP32K) accuracy | -10 | 10 | % | 1 |
CAD (KiCad official)
- Symbol:
ATTINY404-SSNR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
attiny404-ssnr-etched.step/attiny404-ssnr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny404-ssnr.step/attiny404-ssnr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (543 pp, sha256
b405ada92500ad9c, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).