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WS2812E

1-wire RGB · WorldSemi · ws281x

Channels
RGB
Bits / channel
8
Supply
3.7–5.3 V
PWM
2 kHz
Backup data
no
Packages
6

A WorldSemi WS2812 variant that, on every datasheet seen, behaves like the WS2812B-V5 and differs in packaging: it is the one stocked in 1.3 mm, 2.0 mm, 2.7 x 2.4 mm, 3.7 x 3.5 mm and 4020 packages, and “WS2812E-V5” in 5050. Earlier versions of this catalogue could not say whether it had 4 or 6 pins or how it related to the WS2812C; the datasheets settle the first (four pins everywhere) and show the electrical windows are identical to the C and the B-V5, with the drive current (12.5 mA against the C’s 5 mA) the practical difference.

Timing

WS2812E bit timingWS2812E bit timing: a zero bit is 300 nanoseconds high then 790 low; a one bit is 790 high then 790 low; reset 280 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1090 nsbit 1 period 1580 nsT0H 300 nsT1H 790 nsT0L 790 nsT1L 790 ns"0" bit"1" bit02505007501000125015001750200022502500time, nsDatasheet lists unequal bit periods (1090 vs 1580 ns); each bit is drawn with its own.2 · One frame: 24 bits, most-significant bit firstDIN170110010007100110101700101100bitch 1 · 8 bitsch 2 · 8 bitsch 3 · 8 bitsChannel order not recorded for this protocol · frame = 24 × ~1580 ns ≈ 37.9 µs · example data, first bits 1 0 1 …3 · RESET / latchlast bits of frame 1first bits of frame 2LEDs latch the data they receivedRESET: DIN low ≥ 280 µs (not to scale)4 · Cascade: each DOUT feeds the next DINMCULED 1DINDOUTLED 2DINDOUTLED NDINDOUTLED 1 keeps the first 24 bits, re-shapes the signal and sends the rest out on DOUT;LED 2 keeps the next 24, and so on. The last LED's DOUT is left unconnected.
T0H 300 / T0L 790 · T1H 790 / T1L 790 ns · reset 280 µs source: datasheet
SourceT0HT0LT1HT1LPeriodRateReset±
datasheet ↗ 300 ns 790 ns 790 ns 790 ns 1090 ns 917 kHz 280 µs —
Ranges, midpoints recorded: T0H 220-380 ns, T0L 580 ns-1 us, T1H 580 ns-1 us, T1L 580 ns-1 us, reset above 280 us - word for word the WS2812B-V5 table. Supply 3.7-5.3 V, logic input -0.3 V to VDD+0.7 V, and a 12-12.5 mA per-channel drive.

Clones & compatibility

“Compatible” is never stated bare here — each relationship carries how strong the claim is, and what bites if you assume too much.

  • protocol compatible WS2812B-V5

    Identical datasheet timing windows, pin count (4) and supply range. Independent measurement has not been done; E and B differ in IC drive current (12-12.5 mA) and packages (the E exists in 1313, 2020, 2427, 3535-class MINI and 4020). source ↗

Library support

Not checked against FastLED’s chipset list or the other libraries’ source.

Parts using this protocol

Dating evidence

Evidence, not a release date. A library commit proves the part existed by that date and says nothing about how long before.

  • 2021-03-17 datasheet revision WorldSemi WS2812E-1313 datasheet (LCSC C5446700) Modify Record: 'V1.0 N New 20210317' ↗ day