PT6961 Datasheet, PDF (10/18 Pages) Princeton Technology Corp – LED Driver IC

PT6961
SERIAL COMMUNICATION FORMAT
The following diagram shows the PT6961 serial communication format. The DOUT Pin is an N-channel, open-drain
output pin; therefore, it is highly recommended that an external pull-up resistor (1 KΩ to 10 KΩ) must be connected to
DOUT.
RECEPTION (DATA/COMMAND WRITE)
TRANSMISSION (DATA READ)
where: twait (waiting time) ≥ 1µs
It must be noted that when the data is read, the waiting time (twait) between the rising of the eighth clock that has set the
command and the falling of the first clock that has read the data is greater or equal to 1µs.
V1.6
10
May 2010