MC81F4x16
7.11 IIC Timing Characteristics
(T = - 40 C to + 85 C, V
A
= 2.2 V to 5.5 V)
DD
Parameter
Condition
Symbol
Min
Typ.
Max
Units
100(std.)
400(fast)
t
SCL clock frequency
–
–
–
kHz
SCL
t
SCL high level pulse width
SCL low level pulse width
BUS free time
4.0
4.7
4.7
4.0
4.0
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
us
us
us
us
us
us
us
SCLHIGH
t
SCLLOW
t
BUF
SCL clock
= 100kHz
t
Start hold time
START
t
Stop setup time
STOP
t
Data hold time
DAH
t
Data setup time
0.25
DAS
fSCL
tSCLHIGH tSCLLOW
SCL
tDAS
tSTOP
tDAH
tSTART
SDA
tBUF
Figure 7-8 Waveform for IIC Timing Characteristics
42
October 19, 2009 Ver.1.35