Curiosity Nano Standard Pinout; Power Supply - Microchip Technology PIC18F47K42 Curiosity Nano Hardware User's Manual

3.2

Curiosity Nano Standard Pinout

The 12 edge connections closest to the USB connector on Curiosity Nano kits have a standardized pinout. The
program/debug pins have different functions depending on the target programming interface as shown in the table
and figure below.
Table 3-2. Curiosity Nano Standard Pinout
Debugger Signal
ID
CDC TX
CDC RX
DBG0
DBG1
DBG2
DBG3
NC
VBUS
VOFF
VTG
GND
Figure 3-1. Curiosity Nano Standard Pinout
3.3

Power Supply

The kit is powered through the USB port and contains two LDO regulators, one to generate 3.3V for the on-board
debugger, and an adjustable LDO regulator for the target microcontroller PIC18F47K42 and its peripherals. The
voltage from the USB connector can vary between 4.4V to 5.25V (according to the USB specification) and will limit
the maximum voltage to the target. The figure below shows the entire power supply system on PIC18F47K42
Curiosity Nano.
©
2019 Microchip Technology Inc.
TM
ICSP Target
-
UART RX
UART TX
ICSPDAT
ICSPCLK
GPIO0
MCLR
-
-
-
-
-
PS LED
NC
ID
CDC RX
DEBUGGER
CDC TX
DBG1
DBG2
CURIOSITY NANO
PIC18F47K42 Curiosity Nano
Description
ID line for extensions
USB CDC TX line
USB CDC RX line
Debug data line
Debug clock line/DGI GPIO
DGI GPIO
Reset line
No connect
VBUS voltage for external use
Voltage Off input
Target voltage
Common ground
USB
User Guide
Curiosity Nano
VBUS
VOFF
DBG3
DBG0
GND
VTG
DS50002899B-page 9