addressable.wiki
1.6 × 1.5 mm 5 pins top-emitting

TX1813M

1515 · smd · TX1813 · TCWIN

1-wire RGB 3.5–5.5 V backup data line active

At a glance

Colour
RGB8 bits per channel
Data
1-wiretimed pulses on one line
Supply
3.5–5.5 Vbackup data line
Size
1.6 × 1.5 × 0.7 mm5 pins · top
Max current
—per-channel not recorded
PWM
4 kHzreset 80 µs
Library support
FastLED WLED Adafruit

TX1813 in a five-pad 1.6 x 1.5 x 0.68 mm package, 5 mA per channel, sheet version A2 dated 2023-03-27. Pins (p4-5): 1 VDD, 2 FDIN (backup data input), 3 DIN, 4 GND, 5 DO. Drawing: three pads along the top edge (FDIN, DIN, GND) and two at the bottom corners (VDD bottom-left, DO bottom-right); numbered clockwise from the bottom-left in the sheet top view, the opposite sense to the four-pin TX1812M sheet. The name box reads “TX 1813 M5” with the legend “1515”. Height 0.68 mm here; the TX1812MXA5 sheet says 0.65 mm for the same footprint.

TX1813MWA5 has no datasheet on LCSC; listed by the shared IC code 1813 and package letter M (inference).

Variants

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

Order codeFaceLensWhite PinsSiliconStatusFirst seenDatasheet
TX1813M5 — — — 5 — active 2023-03-27 A2
5 mA per channel. LCSC stock 3,395 on 2026-10-15.
TX1813MWA5 — — — 5 — 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 TX1813M5 because both share IC code 1813 and package letter M; 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 4,485 on 2026-10-15.

Pinout

TX1813M5TX1813MWA5
TX1813M 1515 package, top and side viewPin 1 is ringed. pin 1 VDD (power), pin 2 FDIN (backup in), pin 3 DIN (data in), pin 4 GND (ground), pin 5 DO (data out).11 VDD22 FDIN33 DIN44 GND55 DO1.7 mm1.5 mmtop view0.7 mmside view
  • Power
  • Backup data
  • Data
  • Ground
  • Pin 1
  • Polarity bar

Outline and pin positions checked against the manufacturer datasheet (C5137307 TX1813M5 rev A2 p4). Five pads: three along the top edge, two at the bottom corners (no bottom-middle pad), numbered clockwise from bottom-left in the sheet top view. Top pads 0.3 mm, bottom pads 0.4 mm wide in the drawing (drawn as one size). What this means.

  1. 1 VDD power
  2. 2 FDIN backup data in
  3. 3 DIN data in
  4. 4 GND ground
  5. 5 DO data out

Protocol — TX1813

Timings shown from datasheet.

TX1813 bit timingTX1813 bit timing: a zero bit is 295 nanoseconds high then 595 low; a one bit is 595 high then 295 low; tolerance plus or minus 50 nanoseconds; reset 80 microseconds low1 · Bit encoding, to scaleDINhighlowbit 0 period 890 nsbit 1 period 890 nsT0H 295 ±50 nsT1H 595 ±50 nsT0L 595 ±50 nsT1L 295 ±50 ns"0" bit"1" bit02004006008001000120014001600time, ns± tolerance on each falling edge2 · 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 · ±50 ns · period 890 ns · reset 80 µs source: 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 TX1813M5 specification cover: date 20230327, version A2 ↗ day
  • 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.

Was this page useful?

0 people found this useful