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.. _rp2_general:
General information about the RP2xxx port
=========================================
The rp2 port supports boards powered by the Raspberry Pi Foundation's RP2xxx
family of microcontrollers, most notably the Raspberry Pi Pico that employs
the RP2040.
Technical specifications and SoC datasheets
-------------------------------------------
For detailed technical specifications, please refer to the `datasheets
<https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf>`_
The RP2040 microcontroller is manufactured on a 40 nm silicon process in a 7x7mm
QFN-56 SMD package. The key features include:
* 133 MHz dual ARM Cortex-M0+ cores (overclockable to over 400 MHz)
* 264KB SRAM in six independent banks
* No internal Flash or EEPROM memory (after reset, the bootloader loads
firmware from either the external flash memory or USB bus into internal SRAM)
* QSPI bus controller, which
supports up to 16 MB of external Flash memory
* On-chip programmable LDO to generate core voltage
* 2 on-chip PLLs to generate USB and core clocks
* 30 GPIO pins, of which 4 can optionally be used as analog inputs
The peripherals include:
* 2 UARTs
* 2 SPI controllers
* 2 I2C controllers
* 16 PWM channels
* USB 1.1 controller
* 8 PIO state machines
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