R8C/1A Group, R8C/1B Group
19. Electrical Characteristics
Rev.1.30
Dec 08, 2006
Page 294 of 315
REJ09B0252-0130
Timing requirements (Unless Otherwise Specified: V
CC
= 3 V, V
SS
= 0 V at Ta = 25
°
C) [V
CC
= 3 V]
Figure 19.13
XIN
Input Timing Diagram when V
CC
= 3 V
Figure 19.14
CNTR0 Input, CNTR1 Input, INT1 Input Timing Diagram when V
CC
= 3 V
NOTES:
1.
When using the timer C input capture mode, adjust the cycle time to (1/timer C count source frequency x 3) or above.
2.
When using the timer C input capture mode, adjust the width to (1/timer C count source frequency x 1.5) or above.
Figure 19.15
TCIN Input, INT3 Input Timing Diagram when V
CC
= 3 V
Table 19.23
XIN
Input
Symbol
Parameter
Standard
Unit
Min.
Max.
t
c(XIN)
XIN input cycle time
100
−
ns
t
WH(XIN)
XIN input “H” width
40
−
ns
t
WL(XIN)
XIN input “L” width
40
−
ns
Table 19.24
CNTR0 Input, CNTR1 Input, INT1 Input
Symbol
Parameter
Standard
Unit
Min.
Max.
t
c(CNTR0)
CNTR0 input cycle time
300
−
ns
t
WH(CNTR0)
CNTR0 input “H” width
120
−
ns
t
WL(CNTR0)
CNTR0 input “L” width
120
−
ns
Table 19.25
TCIN Input, INT3 Input
Symbol
Parameter
Standard
Unit
Min.
Max.
t
c(TCIN)
TCIN input cycle time
1,200
(1)
−
ns
t
WH(TCIN)
TCIN input “H” width
600
(2)
−
ns
t
WL(TCIN)
TCIN input “L” width
600
(2)
−
ns
XIN input
t
WH(XIN)
t
c(XIN)
t
WL(XIN)
V
CC
= 3 V
CNTR0 input
t
WH(CNTR0)
t
c(CNTR0)
t
WL(CNTR0)
V
CC
= 3 V
TCIN input
t
WH(TCIN)
t
c(TCIN)
t
WL(TCIN)
V
CC
= 3 V
