Raspberry Pi introduces the RP2350 microcontroller chip, building upon the RP2040 released in 2021. This new chip boasts enhanced power compared to its predecessor, featuring a Cortex-M33 core (RP2040 had Cortex-M0+), along with multiple security acceleration circuits.
With Cortex-M33 having 2 cores running at a clock speed of 150MHz and incorporating Hazard3 RISC-V dual-core, automatic switching is possible if the code is compiled for RISC-V. The chip includes 520KB of SRAM, supporting QSPI PSRAM, and various security features like digital signature boot support, 8KB OTP ROM, SHA-256 accelerator, and true random number generator.
Additionally, it integrates a built-in power regulator, high-speed HSTX port, 30 GPIO pins with 4 analog inputs, and USB 3.0 supporting both Host and Device functionalities.
The RP2350 chip continues to be manufactured using 40nm technology but has a significantly larger chip area compared to the RP2040, measuring at 2 square millimeters, which is 5.3 millimeters. An optional 2MB flash storage upgrade is available for an extra cost of 0.2 dollars, ranging from 0.8 to 1.1 dollars per chip.
Raspberry Pi has introduced the Pico 2 board utilizing this new chip at the same price point of 5 dollars. The Pico 2 W board is also available, with both boards now being sold through Cytron in Thailand. These boards will be available for developers and industrial users alike, either simultaneously or within the next month.
TLDR: The RP2350 microcontroller chip by Raspberry Pi offers enhanced performance capabilities with a Cortex-M33 core, improved security features, and larger chip area compared to its predecessor, the RP2040. It is now being used in the Pico 2 boards at an affordable price point.
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