UCS8904B chip is a LED drive cascade chip with 16bit colors, RGBW output.
I'm trying to gather information about the chip to be able to send data from a microcontroller.
manufacturer: http://www.szucs.cn/
I've write to the manufacturer to ask the complete datasheet, no answer there.
+---------+
OUTR --| o |-- OUTW
OUTG --| |-- VDD
OUTB --| |-- DIN
GND --| |-- DOUT
+---------+
| PIN | R | G | B | W |
|---|---|---|---|---|
| Data bit | 16bit | 16bit | 16bit | 16bit |
The recommand value for controller
reference: https://www.gree-leds.com/ic-protocol/ucs8904b-ic-protocol-and-datasheet.html
| Name | Description | Typical Value | Unit |
|---|---|---|---|
| T0H | 0 code,high level time | 0.4 | μs |
| T1H | 1 code,high level time | 0.85 | μs |
| T0L | 0 code,low level time | ≥0.85 | μs |
| T1L | 1 code,low level time | ≥0.4 | μs |
| Treset | Reset code,low level time | 48 | μs |
English
https://github.com/Differentunic/UCS8904-Datasheet/blob/main/UCS8904B.pdf
Chinese
http://www.led-stuebchen.de/download/UCS8904B.pdf
Greeled
https://www.gree-leds.com/web/userfiles/download/UCS8904BICEnglishdatasheet.pdf
https://www.gree-leds.com/ic-protocol/ucs8904b-ic-protocol-and-datasheet.html
https://forum.pjrc.com/index.php?threads/help-using-ucs8904b.75567/
https://giters.com/Makuna/NeoPixelBus/issues/516
Makuna/NeoPixelBus#817