Datasheet

R8C/33T Group 5. Electrical Characteristics
R01DS0046EJ0110 Rev.1.10 Page 41 of 47
Apr 26, 2011
Timing requirements
(Unless Otherwise Specified: Vcc = 3 V, Vss = 0 V at Topr = 25°C)
Figure 5.8 External Clock Input Timing Diagram when Vcc = 3 V
Figure 5.9 TRAIO Input Timing Diagram when Vcc = 3 V
Table 5.21 External Clock Input (XOUT)
Symbol Parameter
Standard
Unit
Min. Max.
t
c(XOUT) XOUT input cycle time 50 — ns
t
WH(XOUT) XOUT input “H” width 24 — ns
t
WL(XOUT) XOUT input “L” width 24 — ns
Table 5.22 TRAIO Input
Symbol Parameter
Standard
Unit
Min. Max.
t
c(TRAIO) TRAIO input cycle time 300 — ns
t
WH(TRAIO) TRAIO input “H” width 120 — ns
t
WL(TRAIO) TRAIO input “L” width 120 — ns
Vcc = 3 V
External
clock input
tC(XOUT)
tWH(XOUT)
tWL(XOUT)
Vcc = 3 V
TRAIO input
tC(TRAIO)
tWH(TRAIO)
tWL(TRAIO)