TAS5715
SLOS645 –AUGUST 2010
www.ti.com
I2C SERIAL CONTROL PORT OPERATION
Timing characteristics for I2C Interface signals over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
No wait states
MIN
MAX
UNIT
kHz
ms
fSCL
tw(H)
tw(L)
tr
Frequency, SCL
400
Pulse duration, SCL high
0.6
1.3
Pulse duration, SCL low
ms
Rise time, SCL and SDA
300
300
ns
tf
Fall time, SCL and SDA
ns
tsu1
th1
Setup time, SDA to SCL
100
0
ns
Hold time, SCL to SDA
ns
t(buf)
tsu2
th2
Bus free time between stop and start condition
Setup time, SCL to start condition
Hold time, start condition to SCL
Setup time, SCL to stop condition
Load capacitance for each bus line
1.3
0.6
0.6
0.6
ms
ms
ms
tsu3
CL
ms
400
pF
tw(H)
tw(L)
tr
tf
SCL
tsu1
th1
SDA
T0027-01
Figure 3. SCL and SDA Timing
SCL
t(buf)
th2
tsu2
tsu3
SDA
Start
Condition
Stop
Condition
T0028-01
Figure 4. Start and Stop Conditions Timing
12
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