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ATTINY424-SSU
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownATTINY424-SSU
Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · SOIC-14
ATTINY424-SSU 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 | Positive power supply pin, 1.8V-5.5V per the ordering table, with a decoupling capacitor placed close to the pin. |
| 2 | PA4 | bidirectional | General purpose I/O PA4 with ADC0 input AIN4, USART0 XDIR, SPI0 SS, TCA0 WO4 and CCL LUT0-OUT functions. |
| 3 | PA5 | bidirectional | General purpose I/O PA5 with external reference input VREFA, ADC0 input AIN5, AC0 OUT, TCA0 WO5, TCB0 WO and CCL LUT3-OUT (alternate location). |
| 4 | PA6 | bidirectional | General purpose I/O PA6 with ADC0 input AIN6 and AC0 negative input AINN0; Px6 pins have full asynchronous pin-change detection. |
| 5 | PA7 | bidirectional | General purpose I/O PA7 with ADC0 input AIN7, AC0 positive input AINP0, CCL LUT1-OUT and EVOUTA (alternate location). |
| 6 | PB3 | bidirectional | General purpose I/O PB3 that is also the TOSC1 crystal oscillator pin, with USART0 RxD, TCA0 WO0 (alternate location) and CCL LUT2-OUT functions. |
| 7 | PB2 | bidirectional | General purpose I/O PB2 that is also the TOSC2 crystal oscillator pin, with EVOUTB, USART0 TxD, TCA0 WO2 and CCL LUT2-IN2 functions; Px2 pins have full asynchronous pin-change detection. |
| 8 | PB1 | bidirectional | General purpose I/O PB1 with ADC0 input AIN10, AC0 positive input AINP2, USART XCK, TWI0 SDA, TCA0 WO1 and CCL LUT2-IN1 functions. |
| 9 | PB0 | bidirectional | General purpose I/O PB0 with ADC0 input AIN11, AC0 negative input AINN2, USART XDIR, TWI0 SCL, TCA0 WO0 and CCL LUT2-IN0 functions. |
| 10 | PA0 (UPDI/RESET) | bidirectional | General purpose I/O PA0 that is also the RESET and UPDI programming/debug pin (configured by RSTPINCFG fuse), with CCL LUT0-IN0. |
| 11 | PA1 | bidirectional | General purpose I/O PA1 with ADC0 input AIN1, USART TXD, SPI0 MOSI and CCL LUT0-IN1 functions. |
| 12 | PA2 | bidirectional | General purpose I/O PA2 with EVOUTA, ADC0 input AIN2, USART RXD, SPI0 MISO and CCL LUT0-IN2 functions; Px2 pins have full asynchronous pin-change detection. |
| 13 | PA3 | bidirectional | General purpose I/O PA3 that is also the external clock input EXTCLK, with ADC0 input AIN3, USART XCK, SPI0 SCK, TCA0 WO3 and TCB1 WO functions. |
| 14 | GND | power_in | Ground reference pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-14 |
| Category | Single Chip Microcomputer/Microcontroller |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 1.8 | 5.5 | V | ATTINY424-SSU, 14-pin SOIC, ordering table | 508 | |
| Operating Temperature Range | -40 | 85 | °C | ATTINY424-SSU, 14-pin SOIC, ordering table | 508 |
CAD (KiCad official)
- Symbol:
ATTINY424-SSU - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
attiny424-ssu-etched.step/attiny424-ssu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);attiny424-ssu.step/attiny424-ssu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (532 pp, sha256
654989c2c48c3753, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).