RP2040 is the debut microcontroller from Raspberry Pi. It brings our signature values of high performance, low cost, and ease of use to the microcontroller space.With a large on-chip memory, symmetric dual-core processor complex, deterministic bus fabric, and rich peripheral set augmented with our unique Programmable I/O (PIO) subsystem, it provides professional users with unrivalled power and flexibility. With detailed documentation, a polished MicroPython port, and a UF2 bootloader in ROM, it has the lowest possible barrier to entry for beginner and hobbyist users.
RP2040 is a stateless device, with support for cached execute-in-place from external QSPI memory. This design decision allows you to choose the appropriate density of non-volatile storage for your application, and to benefit from the low pricing of commodity Flash parts.
Key Features

Dual ARM Cortex-M0+ @ 133MHz

264kB on-chip SRAM in six independent banks

Support for up to 16MB of off-chip Flash memory via dedicated QSPI bus

DMA controller

Fully-connected AHB crossbar

Interpolator and integer divider peripherals

On-chip programmable LDO to generate core voltage

2 on-chip PLLs to generate USB and core clocks

30 GPIO pins, 4 of which can be used as analogue input

6 dedicated IO for SPI Flash (supporting XIP)

Dedicated hardware for commonly used peripherals

Programmable IO for extended peripheral support

4 channel ADC with internal temperature sensor, 0.5 MSa/s, 12-bit conversion

USB 1.1 Host/Device

Peripherals

2 UARTs

2 SPI controllers

2 I2C controllers

16 PWM channels

USB 1.1 controller and PHY, with host and device support

8 PIO state machines

RP2040-based microcontroller boards

RP2040: The beating heart of the Raspberry Pi Pico

Resources

RP2040 – a microcontroller designed at Raspberry Pi Datasheet
RP2040 product brief
Hardware design with RP2040