MPLAB® PICkit™ 4 Debugger Pinouts for Interfaces

The programming connector pin functions are different for various devices and interfaces. Refer to the following pinout tables for debug and data stream interfaces.

Refer to the datasheet for the device you are using as well as the application notes for the specific interface for additional information and diagrams.

Table 1: Pinouts for Debug Interfaces

MPLAB® PICkit™ 4 ICD DEBUG
Pin # Pin Name ICSP™ (MCHP) MIPS EJTAG Cortex® SWD AVR® JTAG AVR ISP (& Dw) UPDI PDI aW dW (IRE) TPI
1 TVPP MCLR MCLR MCLR
2 TVDD VDD VIO_REF VTG VTG VTG VTG VTG VTG VTG VTG
3 GND GND GND GND GND GND GND GND GND GND GND
4 PGD DAT TDO SWO TDO MISO DAT DAT DATA DAT
5 PGC CLK TCK SWCLK TCK SCK CLK
6 TAUX AUX RESET RESET CLK dW RST
7 TTDI TDI TDI MOSI
8 TTMS TMS SWDIO TMS
Module BB BB BB SPI UART USART UART BB

Table 2: Pinouts for Data Stream Interfaces

MPLAB
PICkit 4
DATA STREAM
Pin # DMCI / DGI
U(S)ART / CDC
DGI SPI
1
2 VTG
3 GND
4 MISO
5 SCK
6 (SCK)
7 TX MOSI
8 RX SS
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