AK8973 Datasheet, PDF (10/31 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

ASAHI KASEI
5.4.2. I²C Bus Interface
(1) Standard mode at 1.7V≤VID≤VDD
Symbol
Parameter
fSCL
tHIGH
tLOW
tR
tF
tHD:STA
tSU:STA
SCL clock frequency
SCL clock "High" time
SCL clock "Low" time
SDA and SCL rise time
SDA and SCL fall time
Start Condition hold time
Start Condition setup time
tHD:DAT
tSU:DAT
tSU:STO
tBUF
SDA hold time (vs. SCL falling edge)
SDA setup time (vs. SCL rising edge)
Stop Condition setup time
Bus free time
(2) Fast mode at 1.7V≤VID≤VDD
Symbol
Parameter
fSCL SCL clock frequency
tHIGH SCL clock "High" time
tLOW SCL clock "Low" time
tR
SDA and SCL rise time
tF
SDA and SCL fall time
tHD:STA Start Condition hold time
tSU:STA Start Condition setup time
tHD:DAT SDA hold time (vs. SCL falling edge)
tSU:DAT SDA setup time (vs. SCL rising edge)
tSU:STO Stop Condition setup time
tBUF Bus free time
tSP
Noise suppression pulse width
[I²C bus interface timing]
1/fSCL
SCL
[AK8973]
Min.
4.0
4.7
4.0
4.7
0
250
4.0
4.7
Typ.
Max.
100
1.0
0.3
Unit
kHz
μs
μs
μs
μs
μs
μs
μs
ns
μs
μs
Min.
0.6
1.3
0.6
0.6
0
100
0.6
1.3
Typ.
Max.
Unit
400
kHz
μs
μs
0.3
μs
0.3
μs
μs
μs
μs
ns
μs
μs
50
ns
VIH1
VIL1
SDA
tBUF
tLOW tR
tHIGH tF
SCL
tHD:STA
Stop Start
tHD:DAT
tSU:DAT tSU:STA
Start
VIH1
VIL1
tSP
VIH1
VIL1
tSU:STO
Stop
MS0561-E-01 <Preliminary>
- 10 -
2007/01