At a glance
- Colour
- RGB8 bits per channel
- Data
- 1-wiretimed pulses on one line
- Supply
- 3.5–5.5 Vbackup data line
- Size
- 5.4 × 5.0 × 1.6 mm6 pins · top
- Max current
- —per-channel not recorded
- PWM
- 4 kHzreset 80 µs
- Library support
- FastLED WLED Adafruit
TX1813 (TX1812 timing plus a backup data input) in a six-pad 5050 package, 12 mA per channel (9.6-14.4), cover rating 0.18 W, sheet version A2 dated 2023-03-27. Pins (p5): 1 VDD, 2 VDD (each “connected with the other”), 3 DO, 4 DIN, 5 GND, 6 FDIN (backup data input). This is the only TCWIN 6-pin sheet whose numbering is not a ring: from the drawing, 1-2-3 run up the right column and 6-5-4 down the left (6 top-left, 4 bottom-left); the TX1818BJJ sheet (tx1818-5050-6p) numbers the same package counter-clockwise and puts different signals on the pins, so the two are not interchangeable.
The sheet does not explain what the backup input does; it is only labelled “backup data input”. The only TCWIN sheet that explains a backup port is TX1816ZLN-F01 (“the backup communication port lets a damaged chip in the cascade not affect the ones after it”); that statement is NOT carried over to TX1813 here.
Datasheets disagree with themselves: the heading of section 11 (p7) reads “TH+TL=1.25 us + 600 ns” while the table under it gives T0H 295 + T0L 595 = 890 ns typ; the same sheet’s data rate is 800 kHz typ (1.25 us). Section 14’s note reads “G7 -> BG … B0” (a typo for G7 -> G6).
TX1813AWCA-F02 has no datasheet on LCSC; listed by the shared IC code 1813 and package letter A (inference).
Variants
One row per orderable SKU. Everything not listed is inherited from the part above.
| Order code | Face | Lens | White | Pins | Silicon | Status | First seen | Datasheet |
|---|---|---|---|---|---|---|---|---|
| TX1813AXA-F02 | — | — | — | 6 | — | active | 2023-03-27 | A2 |
| 12 mA per channel. LCSC stock 3,510 when checked. LCSC stock 3,510 on 2026-10-15. | ||||||||
| TX1813AWCA-F02 | — | — | — | 6 | — | active | 2023-03-27 | A2 |
| No datasheet is listed on LCSC for this SKU. Package, pin order and drawing are taken from the sibling sheet TX1813AXA-F02 because both share IC code 1813 and package letter A; that is an inference from the part number, not something any sheet states. Drive current, timing window and the meaning of the remaining letters are not confirmed for this SKU. LCSC stock 120 on 2026-10-15. | ||||||||
Pinout
- Power
- Data
- Ground
- Backup data
- Pin 1
- Cut corner
Outline and pin positions checked against the manufacturer datasheet (C7495083 TX1813AXA-F02 rev A2 p4). Not a ring: the sheet numbers 1-2-3 up the right column and 4-5-6 up the left column (6 at top-left, 4 at bottom-left), unlike the other 6-pin TCWIN sheets. Pad heights are approximate. What this means.
- 1 VDD power
- 2 VDD power
- 3 DO data out
- 4 DIN data in
- 5 GND ground
- 6 FDIN backup data in
Protocol — TX1813
Timings shown from datasheet.
Compatibility
-
protocol compatible
TX1812
Identical printed windows, supply range, drive-current options and 24-bit GRB framing; TX1813 adds the FDIN backup data input. Numbers only; the sheets never relate the two ICs. What FDIN does is not explained in any TX1813 sheet. 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.
- 2023-03-27 datasheet revision TCWIN TX1813AXA-F02 / GLA-F01 / M5 / Y5 specification covers: date 20230327, version A2 ↗ 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.
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