TEA6425(1996) Просмотр технического описания (PDF) - STMicroelectronics
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TEA6425 Datasheet PDF : 9 Pages
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TEA6425
I2C BUS CHARACTERISTICS
Symbol
Parameter
Test Conditions
SCL
VIL
VIH
ILI
fSCL
tR
tF
CI
SDA
Low Level Input Voltage
High Level Input Voltage
Input Leakage Current
Clock Frequency
Input Rise Time
Input Fall Time
Input Capacitance
VI = 0 to VDD
1.5V to 3V
1.5V to 3V
VIL
VIH
ILI
CI
tR
tF
VOL
tF
CL
TIMING
Low Level Input Voltage
High Level Input Voltage
Input Leakage Current
Input Capacitance
Input Rise Time
Input Fall Time
Low Level Output Voltage
Output Fall Time
Load Capacitance
VI = 0 to VDD
1.5V to 3V
1.5V to 3V
IOL = 3mA
3V to 1.5V
tL OW
tHIGH
tSU, DAT
tHD, DAT
tSU, STO
tBUF
tHD, STA
tSU, STA
Clock Low Period
Clock High Period
Data Set-up Time
Data Hold Time
Set-up Time from Clock High to Stop
Start Set-up Time following a Stop
Start Hold Time
Start Set-up Time following Clock Low-
to High Transition
Figure 1 : I2C Bus Timing
Standard Mode
Fast Mode
Unit
Min. Max. Min. Max.
- 0.3
3.0
- 10
0
+ 1.5
VCC + 0.5
+ 10
100
1000
300
10
- 0.3
3.0
- 10
0
+ 1.5
V
VCC + 0.5 V
+ 10 µA
400 kHz
300
ns
300
ns
10
pF
- 0.3
+ 1.5
- 0.3
+ 1.5
V
3.0 VCC + 0.5 3.0 VCC + 0.5 V
- 10
+ 10
- 10
+ 10 µA
10
10
pF
1000
300
ns
300
300
ns
0.4
0.4
V
250
250
ns
400
400
pF
4.7
1.3
µs
4.0
0.6
µs
250
100
ns
0
340
0
340
ns
4.0
0.6
µs
4.7
1.3
µs
4.0
0.6
µs
4.7
0.6
µs
SDA
t BUF
t LOW
tf
SCL
t HD,STA
tr
t HD,DAT t HIGH
t SU,DAT
SDA
t SU,STA
t SU,STO
4/9
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