Datasheet

REV.
–51–
ADuC812
Parameter Min Max Unit
I
2
C COMPATIBLE INTERFACE TIMING
t
LOW
SCLOCK Low Pulsewidth 1.3 μs
t
HIGH
SCLOCK High Pulsewidth 0.6 μs
t
HD; STA
Start Condition Hold Time 0.6 μs
t
SU; DAT
Data Setup Time 100 μs
t
HD; DAT
Data Hold time 0 0.9 μs
t
SU; STA
Setup time for Repeated Start 0.6 μs
t
SU; STO
Stop Condition Setup Time 0.6 μs
t
BUF
Bus Free Time between a STOP
Condition and a START Condition 1.3 μs
t
R
Rise Time for Both SCLOCK and SDATA 300 ns
t
F
Fall Time for Both SCLOCK and SDATA 300 ns
t
SUP
1
Pulsewidth of Spike Suppressed 50 ns
SDATA (I/O)
SCLK (I)
STOP
CONDITION
START
CONDITION
PS
REPEATED
START
S(R)
1 2–7 8 1
MSB
t
BUF
t
SUP
t
SUP
t
R
t
R
t
F
LSB ACK MSB
t
SU
;
STO
t
HD; STA
t
HD; STA
t
HD; DAT
t
LOW
t
HIGH
t
SU; DAT
t
SU; STA
9
t
HD; DAT
Figure 55. I
2
C Compatible Interface Timing
F