CS1630 Datasheet, PDF (8/56 Pages) Cirrus Logic – 2-Channel TRIAC Dimmable LED Driver IC

CS1630/31
3.2 I²C Port Switching Characteristics
Test conditions (unless otherwise specified):
• Inputs: Logic 0 = GND = 0V, Logic 1 = 3.3V.
• The CS1630/31 control port only supports I²C slave functionality.
• It is recommended that a 2.2k pull-up resistor be placed from the SDA pin to V_DD.
Parameter
SCL Clock Frequency
Bus Free Time Between Transmissions
Start Condition Hold Time (prior to first clock pulse)
Clock Low time
Clock High Time
Setup Time for Repeated Start Condition
SDA Input Hold Time from SCL Falling
SDA Setup time to SCL Rising
Setup Time for Stop Condition
SDA Input Voltage Low
SDA Input Voltage High
SDA Output Voltage Low
Symbol
f_scl
t_buf
t_hdst
t_low
t_high
t_sust
t_hddi
t_sud
t_susp
V_il
V_ih
V_ol
Min
-
1.3
0.6
1.3
0.6
0.6
0
100
0.6
-
-
-
Typ
-
-
-
-
-
-
-
-
-
1.5
1.85
0.25
Max
400
-
-
-
-
-
0.9
-
-
-
-
-
Unit
kHz
µs
µs
µs
µs
µs
µs
ns
µs
V
V
V
Stop S ta rt
SDA
SCL
tbuf
thdst
tlow
thigh
t_hddi
t_sud
t_hddo
Repeated
Sta rt
Stop
thdst
tf
tsusp
tsust
tr
8
DS954F2