Table of Contents

The pixel protocol was developed by Lianxinke in China, featuring a control circuit in a SOP8 package for increased LED selection flexibility.

Our LED Strip Studio products support UCS1903 as a pixel IC type. Let us help you with your pixel LED installation – get in touch for more information.

Technical Specifications #

Clock TypeData-Only
Color Resolution8 bits
Physical PackageSOP8
Output Pixel Voltage5 – 12V
PWM Rate400Hz
Suitable CameraUnsuitable for cameras, see Refresh Rate and PWM Rate
Data Transfer Rate400 or 800kbps
Redundant Data LineNo

UCS1903 Pros

  • The pixel protocol has a maximum voltage of 12V, enabling use with longer cables

UCS1903 Cons

  • The low PWM rate makes these pixels not suitable for use with cameras
  • Refresh rates are limited by the speed of the data-only protocol, which may be slower
  • Each color has only 8 bits of data, leading to less smooth dimming curves
  • No data redundancy is included in the protocol.
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