Datasheet

Name Number Type Power Domain Reset State Description
QSPI_SD3 51 Digital IO IOVDD QSPI data
QSPI_SCLK 52 Digital IO IOVDD Pull-Down QSPI clock
QSPI_SD0 53 Digital IO IOVDD QSPI data
QSPI_SD2 54 Digital IO IOVDD QSPI data
QSPI_SD1 55 Digital IO IOVDD QSPI data
QSPI_CSn 56 Digital IO IOVDD Pull-Up QSPI chip select
Table 624. Crystal
oscillator pins
Name Number Type Power Domain Description
XIN 20 Analogue (XOSC) IOVDD Crystal oscillator. XIN
may also be driven by
a square wave.
XOUT 21 Analogue (XOSC) IOVDD Crystal oscillator.
Table 625. Serial wire
debug pins
Name Number Type Power Domain Reset State Description
SWCLK 24 Digital In (FT) IOVDD Pull-Up Debug clock
SWD 25 Digital IO (FT) IOVDD Pull-Up Debug data
Table 626.
Miscellaneous pins
Name Number Type Power Domain Reset State Description
RUN 26 Digital In (FT) IOVDD Pull-Up Chip enable /
reset
TESTEN 19 Digital In IOVDD Pull-Down Test enable
(connect to Gnd)
Table 627. USB pins
Name Number Type Power Domain Description
USB_DP 47 USB IO USB_VDD USB Data +ve. 27Ω
series resistor
required for USB
operation
USB_DM 46 USB IO USB_VDD USB Data -ve. 27Ω
series resistor
required for USB
operation
Table 628. Power
supply pins
Name Number(s) Description
IOVDD 1, 10, 22, 33, 42, 49 IO supply
DVDD 23, 50 Core supply
VREG_VIN 44 Voltage regulator input supply
VREG_VOUT 45 Voltage regulator output
USB_VDD 48 USB supply
ADC_AVDD 43 ADC supply
GND 57 Common ground connection via
central pad
RP2040 Datasheet
5.2. Pinout 632