Nguồn: https://www.raspberrypi.org/blog/raspberry-pi-rp2040-on-sale/
Today, we’re announcing the logical next step: RP2040 chips are now available from our Approved Reseller partners in single-unit quantities, allowing you to build your own projects and products on Raspberry Silicon.
RP2040: the microcontroller, perfected
RP2040 is our idea of the perfect mid-range microcontroller, based on years of using other vendors’ devices in our own products and projects. It stands out in three key ways:
- Two fast CPU cores. A pair of ARM Cortex-M0+ cores, clocked at 133 MHz, provide ample integer performance. Use one core to run application code, and the other to supervise hardware; or run application code on both cores with FreeRTOS or MicroPython.
- Plenty of RAM. With 264KB of RAM, you can concentrate on implementing features, not optimising your application for size. A fully connected switch connects ARM cores and DMA engines to six independent RAM banks, allowing you to squeeze every last drop of performance out of the system.
- Flexible I/O. We provide all the usual interfaces: hardware UARTs, SPI and I2C controllers, USB 1.1, and a four-channel ADC. But it’s the programmable I/O (PIO) subsystem that makes RP2040 stand out, enabling software implementations of protocols including SDIO, DPI, I2S, and even DVI-D.
All of this is packed into 2 mm² of 40 nm silicon, in a 7×7 mm QFN56 package.
