Raspberry Pi RP2040 - Dual Cortex M0+ MCU IC - B1

The chip is 40nm silicon in a 7 × 7 mm QFN-56 SMD package. • Key features: [7] ◦ 133 MHz dual ARM Cortex-M0+ cores (overclockable to over 400 MHz[8]) Each core has an integer divider peripheral, and two interpolators. ◦ 264 KB SRAM in six independent banks ◦ No internal Flash or EEPROM memory (after reset, the boot-loader loads firmware from either external flash memory or USB bus into internal SRAM) ◦ QSPI bus controller, supporting up to 16 MB of external Flash memory ◦ DMA controller ◦ AHB crossbar, fully-connected ◦ 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 • 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 Sources : https://en.wikipedia.org/wiki/RP2040