R8C/18 Group, R8C/19 Group
18. Electrical Characteristics
Rev.1.30
Apr 14, 2006
Page 216 of 233
REJ09B0222-0130
i = 0 or 1
Figure 18.12
Serial Interface Timing Diagram when V
CC
= 3 V
NOTES:
1.
When selecting the digital filter by the INT0 input filter select bit, use an INT0 input HIGH width of either (1/digital filter clock
frequency x 3) or the minimum value of standard, whichever is greater.
2.
When selecting the digital filter by the INT0 input filter select bit, use an INT0 input LOW width of either (1/digital filter clock
frequency x 3) or the minimum value of standard, whichever is greater.
Figure 18.13
External Interrupt INT0 Input Timing Diagram when V
CC
= 3 V
Table 18.24
Serial Interface
Symbol
Parameter
Standard
Unit
Min.
Max.
t
c(CK)
CLKi input cycle time
300
−
ns
t
W(CKH)
CLKi input “H” width
150
−
ns
t
W(CKL)
CLKi input “L” width
150
−
ns
t
d(C-Q)
TXDi output delay time
−
80
ns
t
h(C-Q)
TXDi hold time
0
−
ns
t
su(D-C)
RXDi input setup time
70
−
ns
t
h(C-D)
RXDi input hold time
90
−
ns
Table 18.25
External Interrupt INT0 Input
Symbol
Parameter
Standard
Unit
Min.
Max.
t
W(INH)
INT0 input “H” width
−
ns
t
W(INL)
INT0 input “L” width
−
ns
t
W(CKH)
t
c(CK)
t
W(CKL)
t
h(C-Q)
t
h(C-D)
t
su(D-C)
t
d(C-Q)
CLKi
TxDi
RxDi
V
CC
= 3 V
INTi input
t
W(INL)
t
W(INH)
V
CC
= 3 V
