STLED316S_08 Datasheet, PDF (26/33 Pages) STMicroelectronics – Serial-interfaced 6-digit LED controller with keyscan

Key-scanning and display timing
STLED316S
9.1
Serial communication format (reception)
The figure below shows the “reception” by STLED316S for command/data write sequence.
The STB must be low for 1 µs before the first and last clock rise. The minimum time the STB
must remain low is 9 µs.
The maximum clock frequency is 1 MHz with a duty cycle of 50%. Data set-up and hold time
must be 100 ns.
Figure 5. Serial communication format (reception)
If data are contiguous
STB
D _IN
b0
b1
b2
b6
b7
CLK
2
3
CS15561
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