Port switching characteristics – Cirrus Logic CS1631 User Manual
Page 8

CS1630/31
8
DS954F3
3.2 I
2
C
™
Port Switching Characteristics
Test conditions (unless otherwise specified):
• Inputs: Logic 0 = GND = 0V, Logic 1 = 3.3V.
• The CS1630/31 control port only supports I
2
C slave functionality.
• It is recommended that a 2.2k
pull-up resistor be placed from the SDA pin to V
DD
.
Parameter
Symbol
Min
Typ
Max
Unit
SCL Clock Frequency
f
scl
-
-
400
kHz
Bus Free Time Between Transmissions
t
buf
1.3
-
-
µs
Start Condition Hold Time (prior to first clock pulse)
t
hdst
0.6
-
-
µs
Clock Low time
t
low
1.3
-
-
µs
Clock High Time
t
high
0.6
-
-
µs
Setup Time for Repeated Start Condition
t
sust
0.6
-
-
µs
SDA Input Hold Time from SCL Falling
t
hddi
0
-
0.9
µs
SDA Setup time to SCL Rising
t
sud
100
-
-
ns
Setup Time for Stop Condition
t
susp
0.6
-
-
µs
SDA Input Voltage Low
V
il
-
1.5
-
V
SDA Input Voltage High
V
ih
-
1.85
-
V
SDA Output Voltage Low
V
ol
-
0.25
-
V
Stop
SD A
S C L
t
f
t
susp
Stop
t
r
t
hdst
t
sust
t
hddo
t
sud
t
high
t
hddi
t
low
t
hdst
t
buf
Sta rt
Re pe ate d
S ta rt