1 Features and Pinout

Features of MCU and Curiosity Nano, Board Layout Picture, Board Block Diagram, Pinout Diagram

1.1 PIC18F16Q20 Key Features

The PIC18-Q20 microcontroller family is one of the tiniest PIC18 product families available in 14/20-pin devices for sensor-interfacing, real-time control, and communication applications.

  • Multi-Voltage I/O (MVIO) interface with multiple pins powered by VDDIO2 and VDDIO3
  • I3C Target module with a higher communication rate
  • 10-bit 300 ksps ADC with Computation for responsive sensor designs
  • 8-bit Signal Routing Port module to interconnect digital peripherals without using external pins
  • Vectored interrupt controller with fixed latency for handling interrupts, system bus arbiter,
  • Direct Memory Access (DMA) capabilities
  • UART with support for asynchronous, DMX, DALI and LIN protocols,
  • Memory Access Partition (MAP)
  • Enhanced Code Protect to support users in data protection and bootloader applications
  • The Device Information Area (DIA) stores factory calibration values to help improve temperature sensor accuracy

1.2 Board Features

  • PIC18F16Q20 Microcontroller
  • USB Type-C® Connector
  • One Yellow User LED
  • One Mechanical User Switch
  • One MCP1711/1.2V LDO regulator powering VDDIO3
  • On-Board Debugger:
    • Board identification in Microchip MPLAB® X IDE
    • One green power and status LED
    • Programming and debugging
    • Virtual serial port (CDC)
    • One debug GPIO channel (DGI GPIO)
  • USB Powered
  • Adjustable Target Voltage:
    • MIC5353 LDO regulator controlled by the on-board debugger
    • 1.8–3.6V output voltage (limited by USB input voltage)
    • 500 mA maximum output current (limited by ambient temperature and output voltage)

1.3 Board Overview

Figure 1-1 1-2. PIC18F16Q20 Curiosity Nano Board Overview

1.4 Block Diagram

Figure 1-1 1-2. PIC18F16Q20 Curiosity Nano Board Block Diagram

1.5 Pinout

All the PIC18F16Q20 I/O pins are accessible at the edge connectors on the board. The image below shows the board pinout.

Figure 1-3. PIC18F16Q20 Curiosity Nano Pinout
Info: Peripheral signals shown in the image above, such as UART, I2C, SPI, ADC, PWM, and others, are shown at specific pins to comply with the Curiosity Nano Board standard. These signals can usually be routed to alternate pins using the Peripheral Pin Select (PPS) feature in the PIC18F16Q20.