Microcontroller Raspberry Pi Pico / RP2040

TheRP2040 is a low-cost, high-performance microcontroller with flexible digital interfaces. The RP2040 is manufactured on a 40-nanometer process node, providing high performance, low dynamic power consumption and low leakage, as well as multiple low-power modes to support long battery life. With large on-board memory, a symmetrical dual-core processor, deterministic bus structure, and a rich set of peripherals complemented by a unique Programmable Input/Output (PIO) subsystem, it provides professional users with unmatched power and flexibility.

The RP2040 is a non-stateful device with support for cached in-place execution from external QSPI memory. This design solution allows you to select the appropriate non-volatile memory density for your application and benefit from the low cost of standard Flash components.

The RP2040 features two M0+ processor cores, DMA, internal memory and peripheral blocks connected via an AHB/APB bus structure. Code can be executed directly from external memory via a dedicated SPI, DSPI or QSPI interface. A small cache improves the performance of typical programs. Debugging is available via the SWD interface. The internal SRAM can contain code or data. It is addressed as a single 264 KB area, but physically divided into 6 banks to allow simultaneous parallel access from different masters. DMA bus masters are available to offload repetitive data transfer tasks from the processors. GPIO pins can be driven directly or from a variety of dedicated logic functions, and highly configurable PIO controllers can be used to provide a wide range of I/O functions. A USB controller with an integrated PHY can be used to provide FS/LS host connectivity or a software-controlled device. Four ADC inputs that are used in conjunction with the GPIO pins.
Two FFT circuits to provide a fixed frequency of 48 MHz for USB or ADC and a flexible system frequency of up to 133 MHz. Internal voltage regulator to supply the core voltage, so the final product only needs the I/O voltage.

Main features:

• Dual ARM Cortex-M0+ @ 133 MHz.
• 264 KB of on-chip SRAM in six independent banks
• Supports up to 16 MB of external flash memory via a dedicated QSPI bus.
• DMA controller
• Fully interconnected AHB jumper
• Peripherals for interpolator and integer divider
• Built-in programmable LDO for generating core voltage
• 2 built-in FFTs for USB and core clock generation
• 30 GPIO pins, 4 of which can be used as analog inputs
• Peripherals:
  - 2 UARTS
  - 2 SPI controllers
  - 2 I2C controllers
  - 16 PWM channels
  - USB 1.1 and PHY controller with host and device support
  - 8 PIO finite state machines

Decoding of the chip name:

RP - manufacturer Raspberry PI

2 - number of processor cores (2)

0 - type of processor (M0 +)

4 - built-in memory 16k

0 - no built-in independent memory

The purpose of the outputs:

ARM architecture
The processor implements the ARMv6-M architecture profile. See the ARMv6-M Architecture Reference Manual, and for more details, see the ARM Cortex M0+ Reference Technical Manual.

Overall dimensions: 7.75mm x 7.75mm