Allwinner V3LP gets low voltage RAM, should replace Allwinner V3S dual camera SoC

Allwinner V3LP is a single-core Cortex-A7 processor for dual-camera systems with the exact same specifications as the Allwinner V3S processor introduced in 2016, except it should be more power efficient with a lower DDR operating voltage of 1.5V instead of 1.8V.

Sochip explains that procuring the integrated DDR2 in the Allwinner V3s design is challenging, so Allwinner has replaced the memory in the pin-to-pin compatible Allwinner V3LP with more broadly available and lower power RAM.

Allwinner V3LP specifications:

• CPU – ARM Cortex-A7 @ up to 1.2 GHz
• Memory – Integrated 64MB DDR2 DRAM @ 1.5 V
• Storage I/F – SD 2.0, eMMC 4.41, SPI NAND flash, SPI NOR flash
• Audio Codec – 92dB audio codec supporting 2x ADC channels and 2x DAC channels, 1x low-noise analog microphone bias output, 1x microphone input and 1x stereo microphone output
• Video Processing Unit
  • Encoding – 1080p@40fps or 1080p@30fps + VGA@30fps H.264
  • Decoding – 1080@30fps H.264 and MJPEG
• Video Input/Output
  • 8/10/12-bit parallel CSI and 4-lane MIPI CSI2
  • Up to 5M CMOS sensor
  • RGB/i80/LVDS LCD up to 1024×768 resolution
• Peripherals
  • 3x SD card controllers
  • LRADC/SPI/TWI/UART/PWM
  • USB 2.0 OTG
  • EMAC+PHY
• ISP
  • Integrated “Hawkview” ISP up to 5M pixels
  • Supports 2x channel outputs for display and encoding respectively
  • Supports various input and output formats
  • Supports AE/AF/AWB
  • Supports saturation adjustment/ noise reduction/ defect pixel correction/distortion correction
• Package – 128-pin eLQFP

The software will mostly be compatible, except for the RAM, and Sochip tells us to contact them for further details and the software patch, which I was not able to find publicly at the time of writing. They also mentioned that the Allwinner V3S may become EOL in the near future.

There’s very little information about the new Allwinner V3LP on the Internet, but Sochip sells the chip for the same price ($3.85 in low quantities) on Alibaba as the Allwinner V3S.

Thanks to Stuart for the tip.

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