Scl and sda – Rainbow Electronics DAB-CAM-C01 User Manual
Page 25

TCM8230MD
(A)
Ver. 1.20
04/01/05
25/27
3. SCL and SDA
SYMBOL
MIN
MAX
UNITS
NOTES
Clock frequency
f
SCL
-
400
KHz
Low period
t
LOW;SCL
1.3
-
us
High period
t
HIGH;SCL
0.6
-
us
Rise time
t
r;SCL
-
300
ns
Fall time
t
f;SCL
-
300
ns
Rise time
t
r;SDA
-
300
ns
Fall time
t
f;SDA
-
300
ns
t
HD;STA
0.6
-
us
t
SU;STA
0.6
-
us
t
HD;DAT
0
-
ns
t
SU;DAT
100
-
ns
t
SU;STO
0.6
-
us
Normal
t
SP1
0
50
ns
Wake-up from sleep mode
t
SP2
0
20
ns
1) All values referred to V
IHmin
and V
ILmax
levels
Width of spike pulse
*1
Setup time for a repeated START condition
Data hold time
Data setup time
Setup time for STOP condition
ITEM
Hold time(repeated) START condition
After this period, the first clock pulse is
SDA
SCL
SCL
t
f
SDA
t
LOW
t
HD;DAT
t
HD;STA
t
HIGH
t
SU;STA
t
SU;STO
t
r
t
SU;DAT
t
f
t
HD;STA
t
SP
t
r
t
BUF
STOP
START
RE-START
START
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