The Raspberry Pi team has released a 2040nm RP40 board-on-chip: the Raspberry Pi Pico.
Specification of RP2040:
- Dual Core Arm Cortex-M0+ @ 133MHz
- 264KB RAM
- Support up to 16MB Flash memory via dedicated QSPI bus
- DMA controller
- 30 GPIO pins, 4 of which can be used as analog inputs
- 2 UART, 2 SPI and 2 I2C controllers
- 16 PWM channels
- USB 1.1 controller with host mode support
- 8 Raspberry Pi I/O (PIO) Programmable State Machines
- USB mass-storage boot mode with UF2 firmware support
The Raspberry Pi Pico is designed as an original, inexpensive (only $4) board for the RP2040. It contains an RP2040 with 2MB of flash memory and a power supply chip that supports 1,8V to 5,5V input voltage. This allows the Pico to be powered by a variety of sources, including two or three AA batteries in series, or a single Li-Ion battery.
Based on the RP2040 chip, third-party boards will also be available soon:
Source: linux.org.ru