Renesas R8C series, Hardware Manual

Page: 230 / 257

R8C/18 Group, R8C/19 Group 18. Electrical Characteristics
Rev.1.30 Apr 14, 2006 Page 215 of 233
REJ09B0222-0130
Timing requirements
(Unless Otherwise Specified: V
CC
= 3 V, V
SS
= 0 V at Ta = 25
°
C) [V
CC
= 3 V]
Figure 18.9 XIN Input Timing Diagram when V
CC
= 3 V
Figure 18.10 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 × 3) or above.
2. When using the timer C input capture mode, adjust the width to (1/timer C count source frequency × 1.5) or above.
Figure 18.11 TCIN Input, INT3 Input Timing Diagram when V
CC
= 3 V
Table 18.21 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 18.22 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 18.23 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
X
IN
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