Datasheet

SCL
SDA
t
w(H)
t
w(L)
t
r
t
f
t
su1
t
h1
T0027-01
SCL
SDA
t
h2
t
(buf)
t
su2
t
su3
Start
Condition
Stop
Condition
T0028-01
TAS5508C
SLES257–SEPTEMBER 2010 www.ti.com
4.7.3 I
2
C Serial Control Port Operation
Timing characteristics for I
2
C interface signals over recommended operating conditions
PARAMETER TEST CONDITIONS MIN MAX UNIT
f
SCL
Frequency, SCL No wait states 400 kHz
t
w(H)
Pulse duration, SCL high 0.6 ms
t
w(L)
Pulse duration, SCL low 1.3 ms
t
r
Rise time, SCL and SDA 300 ns
t
f
Fall time, SCL and SDA 300 ns
t
su1
Setup time, SDA to SCL 100 ns
t
h1
Hold time, SCL to SDA 0 ns
t
(buf)
Bus free time between stop and start condition 1.3 ms
t
su2
Setup time, SCL to start condition 0.6 ms
t
h2
Hold time, start condition to SCL 0.6 ms
t
su3
Setup time, SCL to stop condition 0.6 ms
C
L
Load capacitance for each bus line 400 pF
Figure 4-2. SCL and SDA Timing
Figure 4-3. Start and Stop Conditions Timing
58 Electrical Specifications Copyright © 2010, Texas Instruments Incorporated
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