Lichee Pi 4A

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Date Version Author Update content
2023-03-31 v0.1 wonder
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Lichee Pi 4A is the Risc-V linux development board using Lichee Module 4A core module, its main chip is TH1520, contains 4TOPS@int8 AI NPU, supports dual screen 4K resolution display and 4K mipi camera input, dual Gigabit Ethernets and Mutiple USB interfaces provides enough connections. And there is a Riscv C906 Core for audio decode.

Online store:Aliexpress


Main Chip
Name TH1520
CPU RISC-V 64GCV C910*4@2GHz
· Each core contains 64KB I cache amd 64KB D Cache
· Shared 1MB L2 Cache
· Support TEE and REE, configered at core booting
· Support multi-core debugging framework of custom and RISC-V compatible interface
· Independent power domain, supports DVFS
GPU · OpenCL 1.1/1.2/2.0
· OpenGL ES 3.0/3.1/3.2
· Vulkan 1.1/1.2
· Android NN HAL
NPU Support 4TOPS@INT8, up to 1GHz
· Support TensorFlow、ONNX、Caffe
· Support CNN、RNN、DNN
Decode Real-time decoder, support H.265/H.264/VP9/8/7/6/AVS/AVS+/AVS2.0/VC1/MPEG4
· Support H.264 BP/MP/HP@level 5.1 decoding, up to 4K resolution
· Support H.265/HEVC Main Profile@level 5.1 decoding, up to 4K resolution
· Support VP9 Profile-2 decoding, up to 4K resolution
· Support AVS2.0 decoding, up to 4K resolution
· Support VP6/7/8/AVS/AVS+/VC1/MPEG4 decoding, up to 1920x1080 resolution
· Decoding at 4K@75fps maximum
Encode · Support H.264 BP/MP/HP@level4.2 encoding, up to 4K resolution
· Support H.265/HEVC Main Profile encoding, up to 4K resolution
· Only support I-frame and P-frame
· Encoding at 4K@40fps maximum
Hardware information
RAM · 8GB 64bits LPDDR4
· 16GB 64bits LPDDR4
Storage · eMMC: Optional Blank、 8G、 32G、 128G
· Support TF card
Ethernet · 2 x Gigabit Ethernets, POE optional
USB · USB3.0 x 4
· USB2.0 x 1 (Burn firmware only)
Audio · 1 x 3.5mm Stereo port
· 1 x Speaker interface
· 2 x onboard microphones
Display · 1 x HDMI2.0
· 1 x 4-lane MIPI DSI
Camera · 2 x 2-lane MIPI CSI
· 1 x 4-lane MIPI CSI

Specification / Datasheet
Dimensional Drawing
3D Model