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WS2812B-2020 — Addressable RGB

Worldsemi · Intelligent Control LED · 2020 (2.0 × 2.0mm) · Built-in IC + RGB dies
2020 Worldsemi WS2812B RoHS Addressable RGB
VDD
5V
3.7-5.3V range
Protocol
NRZ
800Kbps single-wire
Colors
16.7M
24-bit (8 per ch)
Refresh
2KHz
No flicker
Cascade
1024+
@ 30fps
Package
2020
2.0×2.0×0.84mm

IC & Electrical Characteristics

Supply Voltage (VDD)3.7–5.3V (rated 5V)
Rated VDD Range+3.7V to +5.3V
Input Current (DI)±1μA max
Logic High (VIH)0.65×VDD to VDD+0.7V
Logic Low (VIL)−0.3V to 0.7V
Data Rate800 Kbps (NRZ)
PWM Frequency2 KHz
Color Depth24-bit (8 per R/G/B)
Reset Time>280μs
Max Cascade1024 pixels @ 30fps

LED Characteristics @ VDD=5V

Red Luminous Intensity200 mcd @ 12mA
Red Wavelength620–625nm
Green Luminous Intensity520 mcd @ 12mA
Green Wavelength515–520nm
Blue Luminous Intensity160 mcd @ 12mA
Blue Wavelength465–470nm
White (all on)CIE x=0.21, y=0.23
White CCT~25000K (very cool)
White Current36mA (12mA × 3)

Pin Configuration

R G B WS2812B IC 1 DO 2 GND 3 DI 4 VDD WS2812B-2020 (Top View) 4-pin QFN-like · 2.0 × 2.0 × 0.84mm

NRZ Data Protocol Timing

Single-Wire NRZ Encoding — 800Kbps

0 Code: T0H: 220-380ns T0L: 580ns-1μs ≥1.25μs total 1 Code: T1H: 580ns-1μs T1L: 580ns-1μs Reset: RES: >280μs low HIGH LOW HIGH LOW 24-bit Frame G7..G0 (8 bits) R7..R0 (8 bits) B7..B0 (8 bits) MSB first per channel
Single-wire NRZ protocol at 800Kbps. Each bit is encoded by the ratio of high/low time within a 1.25μs period. A reset pulse (>280μs low) latches data. Frame order is G-R-B, MSB first.

Cascade / Daisy-Chain Topology

DI→DO chaining — up to 1024+ pixels

MCU GPIO DIN LED #0 DI DO LED #1 DI DO LED #2 LED #N N ≤ 1024 VDD (5V) GND
Each LED consumes its 24-bit frame (GRB) and passes remaining data from DO to the next LED's DI. After all data is sent, a >280μs reset pulse latches values. Up to 1024 LEDs at 30fps.

Per-Channel Brightness @ 12mA

Luminous Intensity by Color Channel

200 Red 620-625nm 520 Green 515-520nm 160 Blue 465-470nm 0 140 280 420 560 700 Iv (mcd) All channels @ If = 12mA, VDD = 5V
Green channel is brightest at 520 mcd, followed by red at 200 mcd and blue at 160 mcd. This reflects typical human eye sensitivity (scotopic peak ~507nm). Green dominates perceived brightness in color mixing.

RGB Color Mixer & Power Calculator

🎨 24-bit Color Picker

255
128
0
Hex Code
#FF8000
GRB: 0x80FF00
Power @ 5V
90.0 mW
18.0 mA total
24-bit Data
10000000 11111111 00000000
G R B (MSB first)

Symbol, Footprint & 3D Model

Schematic Symbol
Footprint (2020)
3D Model (interactive)
Click & drag to rotate · Scroll to zoom
Export: KiCad Symbol (.kicad_sym) KiCad Footprint (.kicad_mod) Fusion 360 (.lbr) 3D Model (.step)

Documents

DatasheetWS2812B-2020 Datasheet (PDF) →
SeriesWS2812B
ManufacturerWorldsemi
WS2812B-2020 characterization · Data from Worldsemi WS2812B-2020 datasheet · 2026-06-03