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μ
2
I
C Bus Mode (
PD703302Y, 70F3302Y Only)
= −40 to +85°C, V
(T
= EV
A
DD
Parameter
SCL0 clock frequency
Bus free time
(Between start and stop conditions)
Note 1
Hold time
SCL0 clock low-level width
SCL0 clock high-level width
Setup time for start/restart
conditions
Data hold time
CBUS compatible
master
2
I
C mode
Data setup time
SDA0 and SCL0 signal rise time
SDA0 and SCL0 signal fall time
Stop condition setup time
Pulse width of spike suppressed by
input filter
Capacitance load of each bus line
Notes 1. At the start condition, the first clock pulse is generated after the hold time.
2. The system requires a minimum of 300 ns hold time internally for the SDA0 signal (at V
signal) in order to occupy the undefined area at the falling edge of SCL0.
3. If the system does not extend the SCL0 signal low hold time (t
(t
:
) needs to be satisfied.
HD
DAT
4. The high-speed mode I
2
speed mode I
C bus so that it meets the following conditions.
• If the system does not extend the SCL0 signal's low state hold time:
≥ 250 ns
t
:
SU
DAT
• If the system extends the SCL0 signal's low state hold time:
Transmit the following data bit to the SDA0 line prior to the SCL0 line release (t
250 = 1250 ns: Normal mode I
5. Cb: Total capacitance of one bus line (unit: pF)
670
CHAPTER 28 ELECTRICAL SPECIFICATIONS
= AV
= 2.7 to 5.5 V, V
DD
REF0
Symbol
f
CLK
t
<111>
BUF
t
<112>
HD:STA
t
<113>
LOW
t
<114>
HIGH
t
<115>
SU:STA
t
<116>
HD:DAT
t
<117>
SU:DAT
t
<118>
R
t
<119>
F
t
<120>
SU:STO
t
<121>
SP
Cb
2
C bus can be used in the normal-mode I
2
C bus specification).
User's Manual U16896EJ2V0UD
= EV
= AV
= 0 V, C
SS
SS
SS
L
Normal Mode
MIN.
MAX.
MIN.
0
100
−
4.7
−
4.0
−
4.7
−
4.0
−
4.7
−
5.0
−
Note 2
0
0
−
250
100
−
1000
20 + 0.1Cb
−
300
20 + 0.1Cb
−
4.0
−
−
−
400
), only the maximum data hold time
LOW
2
C bus system. In this case, set the high-
= 50 pF)
High-Speed Mode
Unit
MAX.
0
400
kHz
μ
−
1.3
s
μ
−
0.6
s
μ
−
1.3
s
μ
−
0.6
s
μ
−
0.6
s
μ
−
−
s
μ
Note 2
Note 3
0.9
s
−
Note 4
ns
Note 5
300
ns
Note 5
300
ns
μ
−
0.6
s
0
50
ns
−
400
pF
of SCL0
IHmin.
+ t
= 1000 +
Rmax.
SU:DAT
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