WS2812C-B

WS2812C-B is an intelligent externally-controlled LED light source that integrates the control circuit and light-emitting circuit into a single package. Its form factor is identical to a 5050 LED, with each component serving as one pixel. Each pixel incorporates a smart digital interface, data latch, signal reshaping and amplification drive circuit, along with a high-precision internal oscillator and programmable constant-current control section, effectively ensuring high color consistency across pixels. The data protocol uses single-wire return-to-zero (RZ) communication. After power-on reset, the DIN pin receives data transmitted from the controller. The first 24 bits of incoming data are extracted by the first pixel and stored in its internal data latch, while the remaining data is reshaped and amplified by the internal signal-conditioning circuit, then forwarded through the DO pin to the next cascaded pixel. Each pixel transmission reduces the signal by 24 bits. The pixels employ automatic reshaping and forwarding technology, so the number of cascadable pixels is not limited by signal degradation — only by signal transmission speed requirements. The port scan frequency of up to 2KHz ensures no flickering even when captured by high-definition cameras, making it ideal for high-speed moving applications. A RESET time of over 280μs prevents false resets during signal interruptions, enabling support for lower-frequency, cost-effective MCUs. The LED offers the advantages of low-voltage drive, environmental friendliness and energy efficiency, high brightness, wide dispersion angle, excellent consistency, ultra-low power consumption, and ultra-long lifespan. Integrating the control circuit directly onto the LED simplifies the overall circuit design, reduces form factor, and eases installation.