Owner manual

CS4271
DS592F1 21
SWITCHING CHARACTERISTICS - I²C MODE CONTROL PORT
(Inputs: logic 0 = AGND, logic 1 = VL)
Notes: 21. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
Parameter Symbol Min Max Unit
I²C Mode
SCL Clock Frequency.
f
scl
-100KHz
RST
Rising Edge to Start.
t
irs
500 - ns
Bus Free Time Between Transmissions.
t
buf
4.7 - µs
Start Condition Hold Time (prior to first clock pulse).
t
hdst
4.0 - µs
Clock Low time.
t
low
4.7 - µs
Clock High Time.
t
high
4.0 - µs
Setup Time for Repeated Start Condition.
t
sust
4.7 - µs
SDA Hold Time from SCL Falling. (Note 21)
t
hdd
0-µs
SDA Setup time to SCL Rising.
t
sud
250 - ns
Rise Time of Both SDA and SCL Lines.
t
r
-1µs
Fall Time of Both SDA and SCL Lines.
t
f
-300ns
Setup Time for Stop Condition.
t
susp
4.7 - µs
t
buf
t
hdst
t
hdst
t
low
t
r
t
f
t
hdd
t
high
t
sud
t
sust
t
susp
Stop Start
Start
Stop
Repeated
SDA
SCL
t
irs
RST
Figure 6. I²C Mode Control Port Timing