Thanks, and you're correct; not sure why you got downvoted for this. For anyone curious here are the data sheets for RP2040 [for original Pico] and RP2350 [for Pico 2], which describe the systems in detail.
RP2040: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.p...
RP2350: https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.p...