Raspberry Pi Pico 2W (OT7890)

The Raspberry Pi Pico 2 W is a next-generation microcontroller board designed for high performance, robust security, and versatile connectivity. Building on the success of its predecessors, it adds powerful new features while remaining fully compatible with existing Raspberry Pi Pico software and hardware.

Key Specifications

• Processors:
  • Dual-core Arm Cortex-M33 or optional dual Hazard3 RISC-V cores, both running at 150 MHz for optimal flexibility and processing power.
• Memory:
  • 520 KB of on-chip SRAM for rapid data access and efficient computation.
• Storage & Programming:
  • Drag-and-drop programming via USB mass storage.
  • Seamless compatibility with C/C++ and MicroPython development environments.
• Wireless Connectivity (Pico 2 W):
  • 2.4 GHz 802.11n WiFi for fast wireless networking.
  • Bluetooth 5.2 for reliable communication with various peripherals.

Security Features

• Arm TrustZone: Hardware isolation between secure and non-secure resources.
• Secure Boot: Optional boot signing enforced by on-chip mask ROM with key fingerprints in OTP memory.
• Key Storage: Protected OTP area for optional boot decryption keys.
• Filtering Mechanisms: Global bus filtering based on security/privilege levels, with peripherals individually assignable to security domains.
• Additional Security: Hardware mitigations against fault injection attacks, hardware SHA-256 acceleration, and comprehensive documentation for transparent integration.

I/O and Interfaces

• Serial Interfaces: 2 × UART, 2 × SPI, 2 × I2C for flexible communication with sensors and peripherals.
• PWM Channels: 24 channels for precise signal control.
• ADC: 3 analog inputs for sensor readings.
• USB: 1 × USB 1.1 controller and PHY, supporting both host and device modes.
• PIO (Programmable I/O): 12 state machines to handle complex signals and protocols without CPU overhead.

Hardware Design and Compatibility

• Input Voltage Range: 1.8–5.5 V DC, suitable for various power sources.
• Temperature Range: -20°C to +85°C for reliable operation in diverse environments.
• Mounting: Castellated pads for easy soldering to carrier boards.
• Compatibility: Fully compatible with the original Raspberry Pi Pico series.

With its extensive feature set, impressive computing power, enhanced security capabilities, and straightforward programming experience, the Raspberry Pi Pico 2 W is ideal for both hobbyists and professional developers seeking a powerful, secure, and flexible microcontroller platform.