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AC Characteristics
(1) Basic operation
= −40 to +85°C, 1.8 V ≤ LV
(T
A
Parameter
Maximum operating frequency
RESET low-level width
(2) Serial interface (IIC)
= −40 to +85°C, 1.8 V ≤ LV
(T
A
Parameter
SCL clock frequency
Setup time of start/restart condition
Hold time
Hold time when SCL = "L"
Hold time when SCL = "H"
Data setup time (reception)
Data hold time (transmission)
Notes 1.
The first clock pulse is generated after this period when the start/restart condition is detected.
2.
The maximum value (MAX.) of t
(acknowledge) timing.
Caution Only communication with IIC0 of the 78K0/Kx2 and 78K0R/Kx3 is possible.
It does not support the simplified IIC of the 78K0R/Kx3.
2
Timing Definition on I
C Bus
t
LOW
SCL
t
HD:STA
SDA
Stop
Start
condition
condition
CHAPTER 5 ELECTRICAL SPECIFICATIONS
≤ 5.5 V, LV
= 0 V)
DD
SS
Symbol
LCLK
SCL
t
RSL
≤ 5.5 V, LV
= 0 V)
DD
SS
Note 1
Note 2
is during normal transfer and a wait state is inserted in the ACK
HD:DAT
t
t
HD:DAT
HIGH
t
SU:DAT
User's Manual U18438EJ2V0UD
Conditions
Symbol
Standard Mode
MIN.
MAX.
f
0
100
SCL
−
t
4.8
SU:STA
−
t
4.1
HD:STA
−
t
5.0
LOW
−
t
5.0
HIGH
−
t
0
SU:DAT
t
0.47
4.0
HD:DAT
t
t
SU:STA
HD:STA
Restart
condition
MIN.
TYP.
MAX.
Unit
400
kHz
400
kHz
µ
10
s
High-Speed Mode
Unit
MIN.
MAX.
0
400
kHz
µ
−
0.7
s
µ
−
0.7
s
µ
−
1.25
s
−
µ
1.25
s
µ
−
0
s
µ
0.23
1.00
s
Stop
condition
63
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