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ATMEGA3209-AUR
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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ATMEGA3209-AUR
Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · TQFP-48(7x7)
ATMEGA3209-AUR from Microchip Tech, in a TQFP-48(7x7). 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 | PA5 | bidirectional | General-purpose I/O pin PA5 with alternate functions USART0 RxD (alternate position), SPI0 MISO (alternate position) and TCA0 WO5 (alternate position); it can be used as an event input and for external interrupt. |
| 2 | PA6 | bidirectional | General-purpose I/O pin PA6 with alternate functions USART0 XCK (alternate position), SPI0 SCK (alternate position) and CCL LUT0-OUT (alternate position); it can be used as an event input and for external interrupt. |
| 3 | PA7 | bidirectional | General-purpose I/O pin PA7 with alternate functions CLKOUT, AC0 OUT, USART0 XDIR (alternate position), SPI0 SS and EVOUTA (alternate position); it can be used as an event input and for external interrupt. |
| 4 | PB0 | bidirectional | General-purpose I/O pin PB0 with alternate functions USART3 TxD (alternate position) and TCA0 WO0 (alternate position); it can be used as an event input and for external interrupt. |
| 5 | PB1 | bidirectional | General-purpose I/O pin PB1 with alternate functions USART3 RxD (alternate position) and TCA0 WO1 (alternate position); it can be used as an event input and for external interrupt. |
| 6 | PB2 | bidirectional | General-purpose I/O pin PB2 with alternate functions USART3 XCK (alternate position), TCA0 WO2 (alternate position) and EVOUTB; it can be used as an event input and for external interrupt. |
| 7 | PB3 | bidirectional | General-purpose I/O pin PB3 with alternate functions USART3 XDIR (alternate position) and TCA0 WO3 (alternate position); it can be used as an event input and for external interrupt. |
| 8 | PB4 | bidirectional | General-purpose I/O pin PB4 with alternate functions USART3 TxD (alternate position), TCA0 WO4 (alternate position) and TCB2 WO (alternate position); it can be used as an event input and for external interrupt. |
| 9 | PB5 | bidirectional | General-purpose I/O pin PB5 with alternate functions USART3 RxD (alternate position), TCA0 WO5 (alternate position) and TCB3 WO; it can be used as an event input and for external interrupt. |
| 10 | PC0 | bidirectional | General-purpose I/O pin PC0 with alternate functions USART1 TxD, SPI0 MOSI (alternate position), TCA0 WO0 (alternate position), TCB2 WO and CCL LUT1-IN0; it can be used as an event input and for external interrupt. |
| 11 | PC1 | bidirectional | General-purpose I/O pin PC1 with alternate functions USART1 RxD, SPI0 MISO (alternate position), TCA0 WO1 (alternate position), TCB3 WO (alternate position) and CCL LUT1-IN1; it can be used as an event input and for external interrupt. |
| 12 | PC2 | bidirectional | General-purpose I/O pin PC2 with alternate functions TWI0 SDA (master, alternate position), USART1 XCK, SPI0 SCK (alternate position), TCA0 WO2 (alternate position), EVOUTC and CCL LUT1-IN2; it can be used as an event input and for external interrupt. |
| 13 | PC3 | bidirectional | General-purpose I/O pin PC3 with alternate functions TWI0 SCL (master, alternate position), USART1 XDIR, SPI0 SS (alternate position), TCA0 WO3 (alternate position) and CCL LUT1-OUT; it can be used as an event input and for external interrupt. |
| 14 | VDD | power_in | Input supply for the VDD power domain; the device operates from 1.8 V to 5.5 V per the ordering information. |
| 15 | GND | power_in | Ground reference for the device. |
| 16 | PC4 | bidirectional | General-purpose I/O pin PC4 with alternate functions USART1 TxD (alternate position) and TCA0 WO4 (alternate position); it can be used as an event input and for external interrupt. |
| 17 | PC5 | bidirectional | General-purpose I/O pin PC5 with alternate functions USART1 RxD (alternate position) and TCA0 WO5 (alternate position); it can be used as an event input and for external interrupt. |
| 18 | PC6 | bidirectional | General-purpose I/O pin PC6 with alternate functions USART1 XCK (alternate position) and CCL LUT1-OUT (alternate position); it can be used as an event input and for external interrupt. |
| 19 | PC7 | bidirectional | General-purpose I/O pin PC7 with alternate functions USART1 XDIR (alternate position) and EVOUTC (alternate position); it can be used as an event input and for external interrupt. |
| 20 | PD0 | bidirectional | General-purpose I/O pin PD0 with analog input AIN0 (ADC0), alternate function TCA0 WO0 (alternate position) and CCL LUT2-IN0; it can be used as an event input and for external interrupt. |
| 21 | PD1 | bidirectional | General-purpose I/O pin PD1 with analog input AIN1 (ADC0), analog comparator AC0 positive input P3, alternate function TCA0 WO1 (alternate position) and CCL LUT2-IN1; it can be used as an event input and for external interrupt. |
| 22 | PD2 | bidirectional | General-purpose I/O pin PD2 with analog input AIN2 (ADC0), analog comparator AC0 positive input P0, alternate function TCA0 WO2 (alternate position), EVOUTD and CCL LUT2-IN2; it can be used as an event input and for external interrupt. |
| 23 | PD3 | bidirectional | General-purpose I/O pin PD3 with analog input AIN3 (ADC0), analog comparator AC0 negative input N0, alternate function TCA0 WO3 (alternate position) and CCL LUT2-OUT; it can be used as an event input and for external interrupt. |
| 24 | PD4 | bidirectional | General-purpose I/O pin PD4 with analog input AIN4 (ADC0), analog comparator AC0 positive input P1 and alternate function TCA0 WO4 (alternate position); it can be used as an event input and for external interrupt. |
| 25 | PD5 | bidirectional | General-purpose I/O pin PD5 with analog input AIN5 (ADC0), analog comparator AC0 negative input N1 and alternate function TCA0 WO5 (alternate position); it can be used as an event input and for external interrupt. |
| 26 | PD6 | bidirectional | General-purpose I/O pin PD6 with analog input AIN6 (ADC0), analog comparator AC0 positive input P2 and CCL LUT2-OUT (alternate position); it can be used as an event input and for external interrupt. |
| 27 | PD7 | bidirectional | General-purpose I/O pin PD7 with external ADC voltage reference VREFA, analog input AIN7 (ADC0), analog comparator AC0 negative input N2 and EVOUTD (alternate position); it can be used as an event input and for external interrupt. |
| 28 | AVDD | power_in | Input supply for the AVDD power domain (analog/ADC supply) for the pins on that domain. |
| 29 | GND | power_in | Ground reference for the device. |
| 30 | PE0 | bidirectional | General-purpose I/O pin PE0 with analog input AIN8 (ADC0), alternate functions SPI0 MOSI (alternate position) and TCA0 WO0 (alternate position); it can be used as an event input and for external interrupt. |
| 31 | PE1 | bidirectional | General-purpose I/O pin PE1 with analog input AIN9 (ADC0), alternate functions SPI0 MISO (alternate position) and TCA0 WO1 (alternate position); it can be used as an event input and for external interrupt. |
| 32 | PE2 | bidirectional | General-purpose I/O pin PE2 with analog input AIN10 (ADC0), alternate functions SPI0 SCK (alternate position), TCA0 WO2 (alternate position) and EVOUTE; it can be used as an event input and for external interrupt. |
| 33 | PE3 | bidirectional | General-purpose I/O pin PE3 with analog input AIN11 (ADC0), alternate functions SPI0 SS (alternate position) and TCA0 WO3 (alternate position); it can be used as an event input and for external interrupt. |
| 34 | PF0 (TOSC1) | bidirectional | General-purpose I/O pin PF0 that serves as the TOSC1 crystal connection for the 32.768 kHz oscillator, with alternate functions USART2 TxD, TCA0 WO0 (alternate position) and CCL LUT3-IN0; it can be used as an event input and for external interrupt. |
| 35 | PF1 (TOSC2) | bidirectional | General-purpose I/O pin PF1 that serves as the TOSC2 crystal connection for the 32.768 kHz oscillator, with alternate functions USART2 RxD, TCA0 WO1 (alternate position) and CCL LUT3-IN1; it can be used as an event input and for external interrupt. |
| 36 | PF2 | bidirectional | General-purpose I/O pin PF2 with analog input AIN12 (ADC0), alternate functions TWI0 SDA (slave, alternate position), USART2 XCK, TCA0 WO2 (alternate position), EVOUTF and CCL LUT3-IN2; it can be used as an event input and for external interrupt. |
| 37 | PF3 | bidirectional | General-purpose I/O pin PF3 with analog input AIN13 (ADC0), alternate functions TWI0 SCL (slave, alternate position), USART2 XDIR, TCA0 WO3 (alternate position) and CCL LUT3-OUT; it can be used as an event input and for external interrupt. |
| 38 | PF4 | bidirectional | General-purpose I/O pin PF4 with analog input AIN14 (ADC0), alternate functions USART2 TxD (alternate position), TCA0 WO4 (alternate position) and TCB0 WO (alternate position); it can be used as an event input and for external interrupt. |
| 39 | PF5 | bidirectional | General-purpose I/O pin PF5 with analog input AIN15 (ADC0), alternate functions USART2 RxD (alternate position), TCA0 WO5 (alternate position) and TCB1 WO (alternate position); it can be used as an event input and for external interrupt. |
| 40 | PF6 | bidirectional | General-purpose I/O pin PF6 that can be configured as the RESET pin via SYSCFG0.RSTPINCFG, with alternate functions USART2 XCK (alternate position) and CCL LUT3-OUT (alternate position); it can be used as an event input and for external interrupt. |
| 41 | UPDI | bidirectional | Unified Program and Debug Interface pin used for programming and debugging the device. |
| 42 | VDD | power_in | Input supply for the VDD power domain; the device operates from 1.8 V to 5.5 V per the ordering information. |
| 43 | GND | power_in | Ground reference for the device. |
| 44 | PA0 (EXTCLK) | bidirectional | General-purpose I/O pin PA0 with external clock input EXTCLK, alternate functions USART0 TxD (alternate position), TCA0 WO0 and CCL LUT0-IN0; it can be used as an event input and for external interrupt. |
| 45 | PA1 | bidirectional | General-purpose I/O pin PA1 with alternate functions USART0 RxD, TCA0 WO1 and CCL LUT0-IN1; it can be used as an event input and for external interrupt. |
| 46 | PA2 | bidirectional | General-purpose I/O pin PA2 with alternate functions TWI0 SDA (master), USART0 XCK, TCA0 WO2, TCB0 WO, EVOUTA and CCL LUT0-IN2; it can be used as an event input and for external interrupt. |
| 47 | PA3 | bidirectional | General-purpose I/O pin PA3 with alternate functions TWI0 SCL (master), USART0 XDIR, TCA0 WO3, TCB1 WO and CCL LUT0-OUT; it can be used as an event input and for external interrupt. |
| 48 | PA4 | bidirectional | General-purpose I/O pin PA4 with alternate functions USART0 TxD (alternate position), SPI0 MOSI and TCA0 WO4; it can be used as an event input and for external interrupt. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TQFP-48(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 48 |
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 | 1.8 | 5.5 | V | ATmega3209-AUR (48-pin TQFP, Tape & Reel), from Table 34-1 ordering row | 518 | ||
| Operating temperature range | -40 | 85 | °C | ATmega3209-AUR (48-pin TQFP, Tape & Reel), from Table 34-1 ordering row | 518 | ||
| Max. CPU speed | 20 | MHz | ATmega3209-AUR (48-pin TQFP, Tape & Reel), from Table 34-1 ordering row | 518 |
CAD (KiCad official)
- Symbol:
ATMEGA3209-AUR - Footprint:
Package_QFP:TQFP-48_7x7mm_P0.5mm - 3D model: TQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files:
atmega3209-aur-etched.step/atmega3209-aur-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atmega3209-aur.step/atmega3209-aur.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (547 pp, sha256
8964762f5bd2fdc0, retrieved 2026-10-26, 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).