Raspberry Pi RP2350B Microcontroller

The RP2350B microcontroller from Raspberry Pi offers significant enhancements over RP2040, whilst continuing to provide their signature values of high-performance, low-cost, accessible computing, distilled into an extraordinary microcontroller.

The Raspberry Pi RP2350B is a variant of the RP2350-family of microcontrollers from Raspberry Pi. This RP2350B variant comes in a QFN-80 (10x10mm) package along with 48 GPIO and 8 analogue inputs. It has no internal flash.

Updated version! We’re now stocking the latest A4 stepping, which has addressed a number of errata on the previous A2 version. Read more about the update here.

The unique dual-core, dual-architecture capability of RP2350 provides a pair of industry-standard Arm Cortex-M33 cores with hardware single-precision floating point and DSP instructions @150MHz, and a pair of open-hardware Hazard3 RISC-V cores, selectable in software or by programming the on-chip OTP memory.

The RP2350B has a comprehensive security architecture, built around Arm TrustZone for Cortex-M, along with a second-generation PIO subsystem that provides flexible interfacing with no CPU overhead.

Sold in a pack of five.

RP2350 Device Family Comparison

RP2354A and RP2354B feature 2MB of internal flash. In all other respects, including pinout, they are identical to their flashless counterparts RP2350A and RP2350B. They use the same QFN-60 (RP2354A) and QFN-80 (RP2354B) packages.

Important RP2350 Design Guidelines

• Please read and follow the RP235x design guide
• Please refer to the datasheet, including errata and our reference design in KiCAD format
• Please use the 12 MHz Abracon ABM8-272-T3 crystal oscillator
• If using the on-chip SMPS, please use the custom polarised inductor from Abracon (AOTA-B201610S3R3-101-T) and orient it according to the instructions in the design guide

Specifications

• RP2350B:
  • 48 GPIO
  • 10×10 QFN80
  • No Internal Flash
  • 8x Analogue inputs
• A4 Stepping
• Dual Arm Cortex-M33 or dual Hazard3 RISC-V processors @ 150MHz
• 520 KB on-chip SRAM
• Robust and fully documented security features:
  • ARM TrustZone for Cortex-M
  • Optional boot signing, enforced by on-chip mask ROM, with key fingerprint in OTP
  • Protected OTP storage for optional boot decryption key
  • Global bus filtering based on Arm or RISC-V security/privilege levels
  • Peripherals, GPIOs, and DMA channels individually assignable to security domains
  • Hardware mitigations for fault injection attacks
  • Hardware SHA-256 accelerator
• 2 × UART
• 2 × SPI controllers
• 2 × I2C controllers
• 24 × PWM channels
• 4/8 x ADC channels
• 1 × USB 1.1 controller and PHY, with host and device support
• 12 × PIO state machines
• Software-compatible with RP2040
• Open source C/C++ SDK, MicroPython support
• RP2350 will remain in production until at least January 2045

Resources

• Datasheet
• Hardware design with RP2350
• RP2350 product brief
• Minimal RP2350A and B reference design in KiCAD
• Product number: Raspberry Pi SC1510

Package Contents

• 5x RP2350B microcontrollers (in tape, cut from reel)