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ATTINY3224-SSU

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MICROCHIP TECHNOLOGY Global Sourcing Parts, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ATTINY3224-SSU

MICROCHIP TECHNOLOGY · Global Sourcing Parts · SOIC-14

ATTINY3224-SSU from MICROCHIP TECHNOLOGY, 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 Power supply pin; ordering table lists 1.8-5.5V supply, with a decoupling capacitor placed close to the pin.
2 PA4 bidirectional PORTA pin 4 general purpose I/O with ADC0 input AIN4, USART0 XDIR, SPI0 SS, TCA0 WO4 and CCL LUT0-OUT.
3 PA5 bidirectional PORTA pin 5 general purpose I/O with external reference input VREFA, ADC0 input AIN5, AC0 OUT, TCA0 WO5, TCB0 WO and alternate LUT3-OUT.
4 PA6 bidirectional PORTA pin 6 general purpose I/O with ADC0 input AIN6 and AC0 negative input AINN0; has full asynchronous pin-change detection.
5 PA7 bidirectional PORTA pin 7 general purpose I/O with ADC0 input AIN7, AC0 positive input AINP0, CCL LUT1-OUT and alternate EVOUTA.
6 PB3 bidirectional PORTB pin 3 general purpose I/O with external 32.768 kHz crystal input TOSC1, plus alternate USART0 RxD, TCA0 WO0 and LUT2-OUT.
7 PB2 bidirectional PORTB pin 2 general purpose I/O with crystal pin TOSC2, EVOUTB, USART0 TxD, TCA0 WO2 and CCL LUT2-IN2; has full asynchronous pin-change detection.
8 PB1 bidirectional PORTB pin 1 general purpose I/O with ADC0 input AIN10, AC0 positive input AINP2, USART0 XCK, TWI0 SDA, TCA0 WO1 and CCL LUT2-IN1.
9 PB0 bidirectional PORTB pin 0 general purpose I/O with ADC0 input AIN11, AC0 negative input AINN2, USART0 XDIR, TWI0 SCL, TCA0 WO0 and CCL LUT2-IN0.
10 PA0 (UPDI/RESET) bidirectional PORTA pin 0 configured by fuse as GPIO, RESET or UPDI programming/debug pin (has internal pull-up when UPDI); also CCL LUT0-IN0.
11 PA1 bidirectional PORTA pin 1 general purpose I/O with ADC0 input AIN1, USART0 TXD, SPI0 MOSI and CCL LUT0-IN1.
12 PA2 bidirectional PORTA pin 2 general purpose I/O with EVOUTA, ADC0 input AIN2, USART0 RxD, SPI0 MISO and CCL LUT0-IN2; has full asynchronous pin-change detection.
13 PA3 bidirectional PORTA pin 3 general purpose I/O with external clock input EXTCLK, ADC0 input AIN3, USART0 XCK, SPI0 SCK, TCA0 WO3 and TCB1 WO.
14 GND power_in Ground pin.

Key specifications

Parameter Value
Manufacturer MICROCHIP TECHNOLOGY
Package SOIC-14
Category Global Sourcing Parts
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 ATTINY3224-SSU ordering table, supply voltage 1.8-5.5V 541
Operating Temperature Range -40 85 °C ATTINY3224-SSU, Temperature Range -40°C to +85°C 541
Maximum frequency 20 MHz Peripheral overview, ATtiny3224 2

CAD (KiCad official)

  • Symbol: ATTINY3224-SSU
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: attiny3224-ssu-etched.step / attiny3224-ssu-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); attiny3224-ssu.step / attiny3224-ssu.glb are the bare package body.

Provenance

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

  • Datasheet: MICROCHIP TECHNOLOGY datasheet (574 pp, sha256 46552fd94778cc50, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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