Datasheet

Chapter 2. Mechanical specification
The Pico W is a single sided 51mm × 21mm × 1mm PCB with a micro USB port overhanging the top edge, and dual
castellated/through-hole pins around the two long edges. The onboard wireless antenna is located on the bottom edge.
To avoid detuning the antenna, no material should intrude into this space. Pico W is designed to be usable as a surface-
mount module as well as presenting a dual inline package (DIP) format, with the 40 main user pins on a 2.54mm (0.1")
pitch grid with 1mm holes, compatible with veroboard and breadboard. Pico W also has four 2.1mm (± 0.05mm) drilled
mounting holes to provide for mechanical fixing(see Figure 3).
Figure 3. The
dimensions of the
Pico W
2.1. Pico W pinout
The Pico W pinout has been designed to directly bring out as much of the RP2040 GPIO and internal circuitry function
as possible, while also providing a suitable number of ground pins to reduce electro-magnetic interference (EMI) and
signal crosstalk. RP2040 is built on a modern 40nm silicon process, so its digital I/O edge rates are very fast.
Raspberry Pi Pico W Datasheet
2.1. Pico W pinout 7