TDA7705_10 Datasheet, PDF (21/42 Pages) STMicroelectronics – Highly integrated tuner for AM/FM car radio

TDA7705
Electrical specifications
3.4.9
I²C interface
The following parameters apply to the serial bus communication when I²C protocol has
been selected at start-up. For the other electrical characteristics of the pins, Section 3.4.8
applies. The parameters of the following table are defined as in Figure 8.
Table 15. I²C interface
Symbol
Parameter
f_SCL
SCL Clock frequency
t_AA
SCL low to SDA data valid
t_buf
time the bus must be kept free before a new
transmisison
t_HD-STA
t_LOW
t_HIGH
t_SU-SDA
t_HD-DAT
t_SU-DAT
t_R
t_F
t_SU-STOP
t_DH
START condition hold time
Clock low period
Clock high period
START condition setup time
Data input hold time
Data input setup time
SDA & SCL rise time
SDA & SCL fall time
Stop condition setup time
Data out time
Figure 8. I²C bus timing diagram
Min
Max
Units
-
500
kHz
0.3
-
µs
1.3
-
µs
0.6
-
µs
1.3
-
µs
0.6
-
µs
0.1
-
µs
0
0.9
µs
0.1
-
µs
-
0.3
µs
-
0.3
µs
0.6
-
µs
-
0.3
µs
SCL
tSU-STA
SDA IN
tHIGH
tR
tHD-DAT
tHD-SDA
tAA
tLOW
tDH
tF
tSU-DAT
SDA OUT
tSU-STOP
tbuf
D95AU378A
Doc ID 15938 Rev 8
21/42