Table 179. I2C-Smbus Specification Clock Timings; Figure 365. Master Clock Generation - ST STM32L4x6 Reference Manual

RM0351
Caution: In order to be I
below:
Symbol
SCL clock frequency
f
SCL
Hold time (repeated) START
t
HD:STA
condition
Set-up time for a repeated
t
SU:STA
START condition
Set-up time for STOP condition
t
SU:STO

Figure 365. Master clock generation

2
C or SMBus compliant, the master clock must respect the timings given
2
Table 179. I C-SMBUS specification clock timings
Parameter
DocID024597 Rev 3
Inter-integrated circuit (I2C) interface
Standard- Fast-mode
mode (Sm) (Fm)
Min Max Min Max
100 400
4.0 - 0.6
4.7 - 0.6
4.0 - 0.6
Fast-mode
SMBUS
Plus (Fm+)
Min Max Min Max
1000 100
0.26 - 4.0 -
0.26 - 4.7 -
0.26 - 4.0 -
Unit
kHz
µs
µs
µs
1129/1693
1177