addressable.wiki
3.5 × 2.7 mm 6 pins top-emitting

XL-3527RGBC-SK6812B

3527 · smd · Xinglight SK6812B with BIN input (3.5-7.5 V, 12 mA) · Xinglight

1-wire RGB 3.5–7.5 V backup data line active

Also sold as XL-3527RGBC-SK6812B, XL-3527 (6812)

At a glance

Colour
RGB8 bits per channel
Data
1-wiretimed pulses on one line
Supply
3.5–7.5 Vbackup data line
Size
3.5 × 2.7 × 1.1 mm6 pins · top
Max current
36 mA12 mA per channel
PWM
4 kHzreset 80 µs
Library support
FastLED WLED Adafruit

Same 3527 outline as a 3.5 x 2.7 mm six-pad LED; the OPSCO 3527 does not exist in this catalogue to compare against.

Variants

One row per orderable SKU. Everything not listed is inherited from the part above.

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
XL-3527RGBC-SK6812B — — — 6 — active 2025-09-08 PDF
Backup-input SK6812B-named pixel; see the protocol page. LCSC stock 2,970 on 2026-10-15.

Pinout

XL-3527RGBC-SK6812B
XL-3527RGBC-SK6812B 3527 package, top and side viewPin 1 is ringed. pin 1 VDD (power), pin 2 NC (no connect), pin 3 DO (data out), pin 4 BIN (backup in), pin 5 DI (data in), pin 6 GND (ground).11 VDDpower22 NCno connect33 DOdata out44 BINbackup in55 DIdata in66 GNDground3.5 mm2.7 mmtop view1.2 mmside view
  • Power
  • No connect
  • Data
  • Backup data
  • Ground
  • Pin 1

Outline and pin positions checked against the manufacturer datasheet (C51900946 XL-3527RGBC-SK6812B p10 (outline, solder pattern, labelled top view) and pin table). Table numbering is not a ring: 1 VDD, 2 NC, 3 DO run down the left column and 4 BIN, 5 DI, 6 GND down the right column, as labelled on the top view. Six edge pads (three per 3.5 mm side); sizes estimated from the drawing. The sheet draws no pin-1 mark. What this means.

  1. 1 VDD power
  2. 2 NC nc
  3. 3 DO data out
  4. 4 BIN backup data in
  5. 5 DI data in
  6. 6 GND ground

Protocol — Xinglight SK6812B with BIN input (3.5-7.5 V, 12 mA)

Timings shown from datasheet.

Xinglight SK6812B with BIN input (3.5-7.5 V, 12 mA) bit timingXinglight SK6812B with BIN input (3.5-7.5 V, 12 mA) bit timing: a zero bit is 295 nanoseconds high then 595 low; a one bit is 595 high then 295 low; reset 80 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 890 nsbit 1 period 890 nsT0H 295 nsT1H 595 nsT0L 595 nsT1L 295 ns"0" bit"1" bit02004006008001000120014001600time, 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 × ~890 ns ≈ 21.4 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 ≥ 80 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.BIN (backup): tied to the previous pixel's DIN
T0H 295 / T0L 595 · T1H 595 / T1L 295 ns · period 890 ns · reset 80 µs source: datasheet

Compatibility

  • protocol compatible SK6812

    Only the title (XL-3527RGBC-SK6812B, "XL-3527 (6812)" in the description) says SK6812; the sheet adds an auxiliary input BIN that the sheet describes as receiving the DIN data of the previous chip (i.e. the DOUT of the chip two positions upstream) so that one dead pixel does not stop the chain. The OPSCO SK6812 has no such pin. source ↗

Dating evidence

Nobody announces these parts, so this records what we can actually cite rather than a release date. Library support proves only that the part existed by that date.

  • 2025-09-08 estimate PDF CreationDate metadata of Xinglight sheet XL-3527RGBC-SK6812B (LCSC C51900946); the sheet has no revision table, so this is only the date the PDF file was produced ↗ day

Where to buy

Stub data — a few rows so purchase links can grow later. Prices are not tracked.

Similar parts

Same protocol or package first, then the same data scheme and colour channels.

Was this page useful?

0 people found this useful