Atmel ATmega48PV

324
8025I–AVR–02/09
ATmega48P/88P/168P/328P
3. C
b
= capacitance of one bus line in pF.
4. f
CK
= CPU clock frequency
5. This requirement applies to all ATmega48P/88P/168P/328P 2-wire Serial Interface operation. Other devices connected to
the 2-wire Serial Bus need only obey the general f
SCL
requirement.
Figure 26-7. 2-wire Serial Bus Timing
t
SU;STA
t
LOW
t
HIGH
t
LOW
t
of
t
HD;STA
t
HD;DAT
t
SU;DAT
t
SU;STO
t
BUF
SCL
SDA
t
r