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The RK3288 offer  extendable, leading performance,long-standing heritage which integrated  Quad-core Cortex-A17, , ideally suited for 
the tablet,box and chromebook. SK hynix 8Gb 
DDR4 SDRAMs offer fully synchronous operations referenced to both rising and falling edges of the clock. 
While all addresses and control inputs are latched on the rising edges of the CK (falling edges of the CK), 
Data, Data strobes and Write data masks inputs are sampled on both rising and falling edges of it. The 
data paths are internally pipelined and 8-bit prefetched to achieve very high bandwidth.

A31 SoC Features

  • CPU:
    • ARM Cortex-A7 Quad-Core (revision r0p3)
    • 256KB L1-Cache
    • 1MB L2-Cache
  • GPU:
    • Power VR SGX 544
    • Eight logic cores (8 shader engines)
    • Comply with Open GL ES2.0, Open CL1.x, DX 9_3
  • Video:
    • UHD H.264 4K ×2K @30fps video decoding
    • Full HD video decoding
    • BD Directory, BD ISO and BD m2ts video decoding
    • H.264 High Profile 1080P@60fps encoding
    • 3840x1080@30fps 3D decoding
    • Comply with RTSP, HTTP, HLS, RTMP, MMS streaming media protocol
  • Display:
    • Dual-Channel LVDS 1920 ×1080@60fps
    • 4-lane MIPI DSI 1920 × 1200@ 60fps
    • Dual-Channel RGB/CPU 2048 ×1536@60fps
    • Integrated HDMI 1.4 4K ×2K@ 30fps
  • Camera:
    • Integrated Parallel & MIPI I/F sensor
    • Integrated Powerful ISP, supporting Raw Data CMOS sensor
    • 5M/8M/12M CMOS Sensor supported
    • 8/10/12-bit RGB Bayer sensor supported
  • Memory:
    • Dual-Channel LPDDR2/DDR3/DDR3L Controller
    • Dual-Channel NAND FLASH Controller
    • 64-bit ECC
  • PMIC:
    • A31exclusively tailor-made PMIC AXP221
    • 21-CH power output and 2.2A Flash charging
    • Comply with USB 3.0 power supply standard
  • Embedded Controller:
    • AR100, an OpenRISC controller. Manages deep powersave modes.
  • Audio:
    • Integrated HI-FI 100dB Audio Codec
    • Three MIC
    • One MIC with Noise cancellation
  • OS:
    • Support Android 4.2 or up
    • Support Microsoft Windows 8