
R8C/14 Group, R8C/15 Group 19. Electrical Characteristics
Rev.2.10 Jan 19, 2006 Page 233 of 253
REJ09B0164-0210
Timing requirements (Unless otherwise specified: VCC = 3V, VSS = 0V at Topr = 25 °C) [VCC = 3V]
NOTES:
1. When using the Timer C input capture mode, adjust the cycle time (1/Timer C count source frequency x 3) or above.
2. When using the Timer C input capture mode, adjust the width (1/Timer C count source frequency x 1.5) or above.
NOTES:
1. When selecting the digital filter by the INT0
input filter select bit, use the INT0 input HIGH width to the greater value, either
(1/digital filter clock frequency x 3) or the minimum value of standard.
2. When selecting the digital filter by the INT0
input filter select bit, use the INT0 input LOW width to the greater value, either
(1/digital filter clock frequency x 3) or the minimum value of standard.
Table 19.22 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 19.23 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 19.24 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
Table 19.25 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) RCDi Input Hold Time 90 − ns
Table 19.26 External Interrupt INT0 Input
Symbol Parameter
Standard
Unit
Min. Max.
t
W(INH)
INT0 Input “H” Width
380
(1)
− ns
t
W(INL)
INT0 Input “L” Width
380
(2)
− ns
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