D1S == F133 == C906

selection

F133 is essentially a rebranded D1s, also known as V851s, targeting AI camera and audio/video applications.

Both have 64-bit RISC-V cores (C906) and basic NPU, but F133/V851s is bundled with camera-optimized SDKs, especially for face recognition and object detection tasks.

If you're building a general-purpose Linux-based RISC-V board: D1s is the term used.

If you're building a smart camera or want Allwinner's AI SDKs: F133/V851s is preferred.

Allwinner F133 (D1S) Main Features

Overview

  • High-performance display processor
  • Also known as D1S
  • 64-bit RISC-V architecture (C906 core)
  • Supports H.265 decoding up to 1080p@60fps and G2D rotation
  • Supports RGB/LVDS/MIPI mainstream display interfaces, up to 1920x1080@60fps
  • Simultaneous output to screen and analog video signal

CPU

  • RISC-V 64-bit CPU
  • 32 KB I-cache + 32 KB D-cache

Memory

  • SIP 64 MB DDR2
  • SD3.0 / eMMC 5.1
  • SPI Nor / NAND Flash

Video Engine

Decoding:

  • H.265 up to 1080p@60fps
  • H.264 up to 1080p@60fps
  • MPEG-1/2/4, JPEG, VC1 up to 1080p@60fps

Encoding:

  • JPEG / MJPEG up to 1080p@60fps
  • Supports input picture scaler (up/down)

Display Engine

  • Allwinner SmartColor2.0 post-processing for enhanced display quality
  • Supports de-interlace (DI) up to 1080p@60fps
  • G2D hardware accelerator: rotate, mixer, lbc decompression

Video Output

  • CVBS OUT interface (NTSC and PAL formats)
  • RGB LCD output interface up to 1920x1080@60fps
  • Dual-link LVDS interface up to 1920x1080@60fps

Video Input

  • 8-bit parallel CSI interface
  • CVBS IN interface (NTSC and PAL formats, only for F133-B)

application diagram

datasheet - Chip-cn-dat/allwinner-dat/F133-dat/F133_Datasheet_V1.0_whycan.pdf

version

  • F133-A == TQFP-128-EP(14x14)
  • F133-B == ELQFP-128(14x14)

boards

extend

SCH

开发板原理图 DongshanPI-D1s_SCH-V2.pdf

ref

Table of Contents

https://www.electrodragon.com