Datasheet

© 2009 Microchip Technology Inc. DS39637D-page 451
PIC18F2480/2580/4480/4580
FIGURE 28-16: I
2
C™ BUS START/STOP BITS TIMING
TABLE 28-18: I
2
C™ BUS START/STOP BITS REQUIREMENTS (SLAVE MODE)
FIGURE 28-17: I
2
C™ BUS DATA TIMING
Param.
No.
Symbol Characteristic Min Max Units Conditions
90 TSU:STA Start Condition 100 kHz mode 4700 — ns Only relevant for Repeated
Start condition
Setup Time 400 kHz mode 600 —
91 T
HD:STA Start Condition 100 kHz mode 4000 — ns After this period, the first
clock pulse is generated
Hold Time 400 kHz mode 600 —
92 T
SU:STO Stop Condition 100 kHz mode 4700 — ns
Setup Time 400 kHz mode 600 —
93 THD:STO Stop Condition 100 kHz mode 4000 — ns
Hold Time 400 kHz mode 600 —
91
92
93
SCL
SDA
Start
Condition
Stop
Condition
90
90
91 92
100
101
103
106
107
109
109
110
102
SCL
SDA
In
SDA
Out