Datasheet

Rev. 3.00, 03/04, page 498 of 830
Table 15.13 I
2
C Bus Timing (with Maximum Influence of t
Sr
/t
Sf
)
Time Indication (at Maximum Transfer Rate) [ns]
Item
t
cyc
Indi-
cation
t
Sr
/t
Sf
Influence
(Max.)
I
2
C Bus
Specifi-
cation
(Min.)
φ =
5 MHz
φ =
8 MHz
φ =
10
MHz
φ =
16
MHz
φ =
20
MHz
φ =
25
MHz
φ =
33
MHz
t
SCLHO
Standard
mode
–1000 4000 4000 4000 4000 4000 4000 4000 4000*
1
0.5 t
SCLO
(–t
Sr
)
High-speed
mode
–300 600 2500 1450 1100 950 950 950 950
t
SCLLO
Standard
mode
–250 4700 4750 4750 4750 4750 4750 4750 4750*
1
0.5 t
SCLO
(–t
Sf
)
High-speed
mode
–250 1300 2550 1500 1150*
1
1000*
1
1000*
1
1000*
1
1000*
1
t
BUFO
Standard
mode
–1000 4700 3800*
1
3875*
1
3900*
1
3938*
1
3950*
1
3960*
1
3970*
1
0.5 t
SCLO
–1 t
cyc
( –t
Sr
)
High-speed
mode
–300 1300 2300 1325 1000*
1
888*
1
900*
1
910*
1
920*
1
t
STAHO
Standard
mode
–250 4000 4550 4625 4650 4688 4700 4710 4720*
1
0.5 t
SCLO
–1 t
cyc
(–t
Sf
)
High-speed
mode
–250 600 2350 1375 1050 938 950 960 970
t
STASO
Standard
mode
–1000 4700 9000 9000 9000 9000 9000 9000 9000
1 t
SCLO
(–t
Sr
)
High-speed
mode
–300 600 5300 3200 2500 2200 2200 2200 2200
t
STOSO
Standard
mode
–1000 4000 4400 4250 4200 4125 4100 4080 4061*
1
0.5 t
SCLO
+ 2 t
cyc
(–t
Sr
)
High-speed
mode
–300 600 2900 1700 1300 1075 1050 1030 1011
Standard
mode
–1000 250 3150 3375 3450 3563 3600 3630 3659 t
SDASO
(master)
1 t
SCLLO
*
3
–3 t
cyc
(–t
Sr
)
High-speed
mode
–300 100 1650 825 550 513 550 580 609
Standard
mode
–1000 250 1300 2200 2500 2950 3100 3220 3336 t
SDASO
(slave)
1 t
SCLL
*
3
–12 t
cyc
*
2
(–t
Sr
)
High-speed
mode
–300 100 –1400*
1
–500*
1
–200*
1
250 400 520 636