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WL-ICLED (PLCC4 5050 timing)

1-wire RGB · Wurth Elektronik · wl-icled · revision of WL-ICLED (24-bit single wire)

Channels
RGB
Bits / channel
8
Supply
3.5–5.5 V
PWM
2.5 kHz
Backup data
no
Packages
1

The 5050 PLCC4 member of the single-wire WL-ICLED family, filed as a revision because its PWM frequency, supply floor and timing windows differ from the 2.0 mm and side-view parts.

Refresh & flicker

PWM frequency 2.5 kHz (the 2.0 mm part is 4-6 kHz). Propagation delay 150 ns (80 ns on the 2.0 mm part). GRB, MSB first.

Timing

WL-ICLED (PLCC4 5050 timing) bit timingWL-ICLED (PLCC4 5050 timing) bit timing: a zero bit is 300 nanoseconds high then 900 low; a one bit is 900 high then 300 low; reset 200 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 1200 nsbit 1 period 1200 nsT0H 300 nsT1H 900 nsT0L 900 nsT1L 300 ns"0" bit"1" bit020040060080010001200140016001800200022002400time, ns2 · 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 × ~1200 ns ≈ 28.8 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 ≥ 200 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 900 · T1H 900 / T1L 300 ns · period 1200 ns · reset 200 µs source: datasheet
SourceT0HT0LT1HT1LPeriodRateReset±
datasheet ↗ 300 ns 900 ns 900 ns 300 ns 1200 ns 833 kHz 200 µs —
Typical column. Ranges: T0H 200-400 ns, T0L 800 ns minimum, T1H 600-1000 ns, T1L 200 ns minimum, bit period typical 1200 ns with no limits given. Wider and one-sided windows than the 2.0 mm WL-ICLED sheet, which gives +/-150 ns on a symmetric set.

Clones & compatibility

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

Library support

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.

  • 2026-01-22 datasheet revision Wurth WL-ICLED 1315050930002 datasheet, revision 003.000 ↗ day