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21
PRELIMINARY
PRELIMINARY
21.5 AC Characteristics
21.5.1 Timing Requirements
•
Unless otherwise noted, timing conditions are VCCE = 5 V ± 0.5 V, VCCI = 3.3 V ± 0.3 V, Ta =
-40 to 125°C
•
The characteristic values apply to the case of concentrated capacitance with an output load
capacitance of 15 to 50 pF (however, 80 pF for JTAG-related). In cases where the output load
capacitance varies, they may deviate from the rated switching characteristics.
(1) Input/output ports
Symbol
Port Input Setup Time
t
(P-E)
su
Port Input Hold Time
t
(E-P)
h
(2) Serial I/O
a) CSIO mode, with internal clock selected
Symbol
t
RxD Input Setup Time
su(D-CLK)
RxD Input Hold Time
t
h(CLK-D)
b) CSIO mode, with external clock selected
Symbol
t
CLK Input Cycle Time
c(CLK)
t
w(CLKH)
CLK Input High Pulse Width
t
CLK Input Low Pulse Width
w(CLKL)
t
su(D-CLK)
RxD Input Setup Tim
RxD Input Hold Time
t
h(CLK-D)
(3) SBI
Symbol
SBI Input Pulse Width
t
w(SBIL)
Parameter
Parameter
Parameter
Parameter
21-12
ELECTRICAL CHARACTERISTICS
21.5 AC Characteristics
Rated Value
Condition
MIN
100
0
Condition
Rated Value
MIN
150
50
Condition
Rated Value
MIN
640
300
300
60
100
Rated Value
Condition
MIN
5
tc(BCLK)
2
See
Unit
Figure
21.5.1
MAX
ns
1
ns
2
See
Unit
Figure
21.5.2
MAX
4
ns
5
ns
See
Unit
Figure
21.5.2
MAX
ns
7
ns
8
ns
9
ns
10
ns
11
See
Unit
Figure
MAX
21.5.3
ns
13
Ver.0.10
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