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R8C/18 Group, R8C/19 Group
Timing Requirements
(Unless Otherwise Specified: V
Table 18.14
XIN Input
Symbol
t
XIN input cycle time
c(XIN)
t
XIN input "H" width
WH(XIN)
t
XIN input "L" width
WL(XIN)
X
input
IN
Figure 18.4
XIN Input Timing Diagram when V
Table 18.15
CNTR0 Input, CNTR1 Input, INT1 Input
Symbol
t
CNTR0 input cycle time
c(CNTR0)
t
CNTR0 input "H" width
WH(CNTR0)
t
CNTR0 input "L" width
WL(CNTR0)
CNTR0 input
Figure 18.5
CNTR0 Input, CNTR1 Input, INT1 Input Timing Diagram when V
Table 18.16
TCIN Input, INT3 Input
Symbol
t
TCIN input cycle time
c(TCIN)
t
TCIN input "H" width
WH(TCIN)
t
TCIN input "L" width
WL(TCIN)
NOTES:
1. When using timer C input capture mode, adjust the cycle time to (1/timer C count source frequency x 3) or above.
2. When using timer C input capture mode, adjust the pulse width to (1/timer C count source frequency x 1.5) or above.
TCIN input
Figure 18.6
TCIN Input, INT3 Input Timing Diagram when V
Rev.1.30
Apr 14, 2006
REJ09B0222-0130
= 0 V at Ta = 25 °C) [V
= 5 V, V
CC
SS
Parameter
t
WH(XIN)
Parameter
t
WH(CNTR0)
Parameter
t
WH(TCIN)
Page 211 of 233
= 5 V]
CC
t
c(XIN)
t
WL(XIN)
= 5 V
CC
t
c(CNTR0)
t
WL(CNTR0)
t
c(TCIN)
t
WL(TCIN)
= 5 V
CC
18. Electrical Characteristics
Standard
Unit
Min.
Max.
−
50
ns
−
25
ns
−
25
ns
V
= 5 V
CC
Standard
Unit
Min.
Max.
−
100
ns
−
40
ns
−
40
ns
V
= 5 V
CC
= 5 V
CC
Standard
Unit
Min.
Max.
−
(1)
ns
400
−
(2)
ns
200
−
(2)
ns
200
V
= 5 V
CC
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