Renesas R8C/20 User Manual

R8C/20 Group, R8C/21 Group 20. Electrical Characteristics
Rev.2.00 Aug 27, 2008 Page 427 of 458
REJ09B0250-0200
i = 0 or 1
Figure 20.14 Serial Interface Timing Diagram when VCC = 3 V
NOTES:
1. When selecting the digital filter by the INTi
input filter select bit, use the INTi 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 INTi
input filter select bit, use the INTi input LOW width to the greater value, either
(1/digital filter clock frequency x 3) or the minimum value of standard.
Figure 20.15 External Interrupt INTi Input Timing Diagram when VCC = 3 V (i = 0 to 3)
Table 20.24 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) 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 20.25 External Interrupt INTi (i = 0 to 3) 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
i = 0 or 1
Vcc = 3V
CLK0
TXDi
RXDi
tW(CKH)
tc(CK)
tW(CKL)
th(C-Q)
th(C-D)
tsu(D-C)
td(C-Q)
i = 0 to 3
Vcc = 3V
INTi input
tW(INL)
tW(INH)

Renesas R8C/20 Specifications

General

Brand	Renesas
Model	R8C/20
Category	Control Unit
Language	English