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

Product	Package	Internal flash	GPIO	Analogue inputs
RP2350A	QFN-60	None	30	4
RP2350B	QFN-80	None	48	8
RP2354A	QFN-60	2 MB	30	4
RP2354B	QFN-80	2 MB	48	8

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
  • 10x10 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)