ATXMEGA128A3-AU Detailed explanation of pin function specifications and circuit principle instructions（226 ）

ATXMEGA128A3-AU Detailed explanation of pin function specifications and circuit principle instructions（226 ）

The "ATXMEGA128A3-AU" is a microcontroller from the Atmel (now a part of Microchip Technology) XMEGA series. Specifically, it is a member of the XMEGA 8-bit family of microcontrollers that Atmel developed for embedded applications requiring high performance, low Power consumption, and peripheral support.

Package Type:

The "ATXMEGA128A3-AU" refers to a microcontroller in a QFN-64 (Quad Flat No-lead) package. The "A3" signifies its specific variant, and "AU" indicates the lead-free, RoHS-compliant version. This particular microcontroller is housed in a 64-pin package, as opposed to 200-pin packages, for example, which you mentioned, as the ATXMEGA128A3-AU has only 64 pins.

Pin Functions for ATXMEGA128A3-AU (Detailed List):

Since you requested a detailed explanation of the pin functions and circuit principle, here's a comprehensive list of all pins in the QFN-64 package for the ATXMEGA128A3-AU microcontroller. Please note that the number of pins is 64, not 200, and each pin has specific functions.

Pinout Table for ATXMEGA128A3-AU (QFN-64)

Pin Number Pin Name Pin Function Description 1 PA0 General I/O (GPIO) or ADC0 (Analog-to-Digital Converter) Input 2 PA1 General I/O (GPIO) or ADC1 Input 3 PA2 General I/O (GPIO) or ADC2 Input 4 PA3 General I/O (GPIO) or ADC3 Input 5 PA4 General I/O (GPIO) or ADC4 Input 6 PA5 General I/O (GPIO) or ADC5 Input 7 PA6 General I/O (GPIO) or ADC6 Input 8 PA7 General I/O (GPIO) or ADC7 Input 9 PB0 General I/O (GPIO) or USART0 RXD 10 PB1 General I/O (GPIO) or USART0 TXD 11 PB2 General I/O (GPIO) or SPI MISO (Master In Slave Out) 12 PB3 General I/O (GPIO) or SPI MOSI (Master Out Slave In) 13 PB4 General I/O (GPIO) or SPI SCK (Serial Clock ) 14 PB5 General I/O (GPIO) or SPI SS (Slave Select) 15 PB6 General I/O (GPIO) or Timer/Counter 0 Output 16 PB7 General I/O (GPIO) or Timer/Counter 1 Output 17 PC0 General I/O (GPIO) or Analog comparator Input 18 PC1 General I/O (GPIO) or Analog Comparator Input 19 PC2 General I/O (GPIO) or USART1 RXD 20 PC3 General I/O (GPIO) or USART1 TXD 21 PC4 General I/O (GPIO) or Timer/Counter 2 Output 22 PC5 General I/O (GPIO) or Timer/Counter 3 Output 23 PC6 General I/O (GPIO) or Analog Comparator Output 24 PC7 General I/O (GPIO) or External Interrupt Input 25 PD0 General I/O (GPIO) or External Interrupt Input 26 PD1 General I/O (GPIO) or External Interrupt Input 27 PD2 General I/O (GPIO) or Timer/Counter 4 Output 28 PD3 General I/O (GPIO) or Timer/Counter 5 Output 29 PD4 General I/O (GPIO) or External Interrupt Input 30 PD5 General I/O (GPIO) or External Interrupt Input 31 PD6 General I/O (GPIO) or Timer/Counter 6 Output 32 PD7 General I/O (GPIO) or Timer/Counter 7 Output 33 PE0 General I/O (GPIO) or ADC Input 34 PE1 General I/O (GPIO) or ADC Input 35 PE2 General I/O (GPIO) or External Interrupt Input 36 PE3 General I/O (GPIO) or External Interrupt Input 37 PE4 General I/O (GPIO) or External Interrupt Input 38 PE5 General I/O (GPIO) or External Interrupt Input 39 PE6 General I/O (GPIO) or Timer/Counter Output 40 PE7 General I/O (GPIO) or Timer/Counter Output 41 PF0 General I/O (GPIO) or PWM Output 42 PF1 General I/O (GPIO) or PWM Output 43 PF2 General I/O (GPIO) or PWM Output 44 PF3 General I/O (GPIO) or PWM Output 45 PF4 General I/O (GPIO) or PWM Output 46 PF5 General I/O (GPIO) or PWM Output 47 PF6 General I/O (GPIO) or PWM Output 48 PF7 General I/O (GPIO) or PWM Output 49 VCC Power Supply Pin 50 GND Ground Pin 51 RESET Reset Pin (active low) 52 XTAL1 Crystal Oscillator Input Pin 53 XTAL2 Crystal Oscillator Output Pin 54 AREF Analog Reference Pin 55 AVCC Analog Power Pin 56 ALV Analog Low Voltage Detection 57 VDDIO I/O Voltage Pin 58 VDD Main Power Pin 59 XCK1 External Clock Input Pin 60 XCK2 External Clock Output Pin 61 NMI Non-maskable Interrupt Pin 62 GND Ground Pin 63 MISO SPI Master In Slave Out Pin 64 MOSI SPI Master Out Slave In Pin

Common FAQ (Frequently Asked Questions) for ATXMEGA128A3-AU:

Q: What is the pinout of ATXMEGA128A3-AU? A: The ATXMEGA128A3-AU is in a QFN-64 package, with 64 pins that serve various functions such as GPIO, ADC, SPI, USART, timers, and external interrupt capabilities. Q: How many pins does the ATXMEGA128A3-AU have? A: The ATXMEGA128A3-AU has 64 pins in a QFN package. Q: What are the analog pins on ATXMEGA128A3-AU? A: The analog pins include PA0-PA7, PC0-PC7, and PE0-PE7, which can be configured for ADC and analog comparator functions. Q: Does ATXMEGA128A3-AU support SPI? A: Yes, pins PB2, PB3, PB4, and PB5 are used for SPI communication, supporting MISO, MOSI, SCK, and SS. Q: What is the voltage range for the ATXMEGA128A3-AU? A: The ATXMEGA128A3-AU operates with a voltage range from 1.6V to 3.6V. Q: How do I configure the timer outputs? A: The timer outputs are available on pins PB6, PB7, PD2, PD3, PD6, and PD7, depending on the timer being used. Q: How do I reset the ATXMEGA128A3-AU? A: The reset pin (pin 51) is used to reset the microcontroller when pulled low. Q: What external components are required for the ATXMEGA128A3-AU? A: External components like a crystal oscillator (XTAL1, XTAL2) and external clock inputs may be required depending on the configuration. Q: Can the ATXMEGA128A3-AU be used for communication with other devices? A: Yes, the ATXMEGA128A3-AU supports USART and SPI protocols for communication. Q: Does the ATXMEGA128A3-AU have a built-in ADC? A: Yes, the ATXMEGA128A3-AU features a 12-bit ADC with multiple input channels. Q: What is the maximum clock speed for ATXMEGA128A3-AU? A: The maximum clock speed for the ATXMEGA128A3-AU is 32 MHz. Q: What is the power consumption of ATXMEGA128A3-AU? A: The power consumption is low, with various low-power modes available for optimizing energy usage. Q: How do I use the external interrupt feature? A: External interrupts are available on pins PC7, PD0, PD1, and PD4, and they can be configured to trigger on rising, falling, or both edges. Q: Can I use the ATXMEGA128A3-AU for PWM? A: Yes, you can use the ATXMEGA128A3-AU for Pulse Width Modulation (PWM) on several pins, such as PF0-PF7. Q: How do I configure the analog reference voltage? A: The AREF pin provides the reference voltage for the ADC, and it can be configured to use an internal or external reference. Q: Does the ATXMEGA128A3-AU have a watchdog timer? A: Yes, it has a built-in watchdog timer to help recover from software faults. Q: What is the temperature range for the ATXMEGA128A3-AU? A: The operating temperature range is typically -40°C to 85°C. Q: Is there support for I2C on ATXMEGA128A3-AU? A: Yes, the ATXMEGA128A3-AU supports I2C (TWI) communication through specific pins. Q: Can I use the ATXMEGA128A3-AU for low-power applications? A: Yes, it offers various sleep modes to optimize power consumption during inactive periods. Q: What are the I/O capabilities of the ATXMEGA128A3-AU? A: The I/O capabilities include 64 programmable I/O pins, with configurable digital and analog functions.

If you need further explanations or clarifications, feel free to ask!