R8C/2H Group, R8C/2J Group 5. Electrical Characteristics
Rev.1.00 Mar 28, 2008 Page 60 of 65
REJ03B0217-0100
Figure 5.21 Serial Interface Timing Diagram when VCC = 3 V
NOTES:
1. When selecting the digital filter by the INTi
input filter select bit, use an INTi input HIGH width of either (1/digital filter clock
frequency × 3) or the minimum value of standard, whichever is greater.
2. When selecting the digital filter by the INTi
input filter select bit, use an INTi input LOW width of either (1/digital filter clock
frequency × 3) or the minimum value of standard, whichever is greater.
Figure 5.22 External Interrupt INTi Input Timing Diagram when VCC = 3 V
Table 5.49 Serial Interface
Symbol Parameter
Standard
Unit
Min. Max.
t
c(CK) CLK0 input cycle time 300 − ns
t
W(CKH) CLK0 input “H” width 150 − ns
t
W(CKL) CLK0 Input “L” width 150 − ns
t
d(C-Q) TXD0 output delay time − 80 ns
t
h(C-Q) TXD0 hold time 0 − ns
t
su(D-C) RXD0 input setup time 70 − ns
t
h(C-D) RXD0 input hold time 90 − ns
Table 5.50 External Interrupt INTi (i = 0 or 1) Input
Symbol Parameter
Standard
Unit
Min. Max.
t
W(INH)
INTi input “H” width
380
(1)
− ns
t
W(INL)
INTi input “L” width
380
(2)
− ns
tW(CKH)
tC(CK)
tW(CKL)
th(C-Q)
th(C-D)
tsu(D-C)td(C-Q)
CLK0
TXD0
RXD0
VCC = 3 V
INTi input
tW(INL)
tW(INH)
VCC = 3 V
i = 0 or 1
