Specifications
Part Number
Walnut Pi CM2
SoC
Allwinner T527 — octa-core Arm Cortex-A55 (4x 1.80 GHz + 4x 1.42 GHz)
AI Accelerator
2 TOPS NPU
Coprosessor
E906 RISC-V core up to 200 MHz
DSP
600 MHz HIFI4 audio DSP
GPU
Arm Mali-G57 MC1 — OpenGL ES 3.2, OpenCL 2.2, Vulkan 1.3
System Memory
1 GB / 2 GB / 4 GB LPDDR4
Storage
Optional 16 GB eMMC flash (32 / 64 / 128 GB by resistor selection)
Boot Flash
8 MB SPI flash
Networking
On-module Gigabit Ethernet PHY; dual-band 802.11ax WiFi 6 + Bluetooth 5.0 (AW869 module)
Form Factor
Raspberry Pi CM5-compatible, 55 x 40 mm, 2x 100-pin high-density B2B connectors
Video Output
HDMI up to 4Kp60; 4-lane MIPI DSI up to 1080p60
Camera Interface
4-lane MIPI CSI
USB
1x USB 3.0, 3x USB 2.0
PCIe
PCIe Gen2 x1 (multiplexed with USB 3.0)
Audio
HPOUT speaker output, 2x microphone interfaces
Other I/O
GPIOs, infrared receiver, user key, UART debug
Power Supply
5 V / 2 A
Weight
9.6 g
Operating System
Walnut Pi OS (Debian 12), Ubuntu, Android, Home Assistant
Compatibility Note
Partially electrically compatible with Raspberry Pi CM5 — single HDMI, MIPI pinout differs
Overview
Walnut Pi CM2 — Allwinner T527 Raspberry Pi CM5-Compatible Compute Module.
Key Benefits
Edge AI ready
Applications
Edge AI vision, robotics and industrial inspection
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