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R8C/18 Group, R8C/19 Group
Table 18.24
Serial Interface
Symbol
t
CLKi input cycle time
c(CK)
t
CLKi input "H" width
W(CKH)
t
CLKi input "L" width
W(CKL)
t
TXDi output delay time
d(C-Q)
t
TXDi hold time
h(C-Q)
t
RXDi input setup time
su(D-C)
t
RXDi input hold time
h(C-D)
i = 0 or 1
CLKi
TxDi
RxDi
Figure 18.12
Serial Interface Timing Diagram when V
Table 18.25
External Interrupt INT0 Input
Symbol
t
W(INH)
INT0 input "H" width
t
W(INL)
INT0 input "L" width
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.
INTi input
Figure 18.13
External Interrupt INT0 Input Timing Diagram when V
Rev.1.30
Apr 14, 2006
REJ09B0222-0130
Parameter
t
W(CKH)
t
d(C-Q)
Parameter
t
W(INL)
Page 216 of 233
t
c(CK)
t
W(CKL)
t
su(D-C)
= 3 V
CC
t
W(INH)
= 3 V
CC
18. Electrical Characteristics
Standard
Unit
Min.
Max.
−
300
ns
−
150
ns
−
150
ns
−
80
ns
−
0
ns
−
70
ns
−
90
ns
V
= 3 V
CC
t
h(C-Q)
t
h(C-D)
Standard
Unit
Min.
Max.
−
(1)
ns
380
−
(2)
ns
380
V
= 3 V
CC
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