Datasheet

R01DS0011EJ0101 Rev.1.01 Page 74 of 102
Oct 28, 2011
R8C/LA3A Group, R8C/LA5A Group, R8C/LA6A Group, R8C/LA8A Group 5. Electrical Characteristics
Figure 5.8 External Clock Input Timing
Figure 5.9 Input Timing of TRJiIO
Table 5.26 Timing Requirements of External Clock Input (XIN, XCIN)
(V
SS = 0 V and Topr = −20 to 85 °C (N version)/ −40 to 85 °C (D version), unless
otherwise specified.)
Symbol Parameter
Standard
UnitVCC = 2.2V, Topr = 25°CVCC = 3V, Topr = 25°CVCC = 5V, Topr = 25°C
Min. Max. Min. Max. Min. Max.
t
c(XIN) XIN input cycle time 200 – 50 – 50 – ns
t
WH(XIN) XIN input “H” width 90 – 24 – 24 – ns
t
WL(XIN) XIN input “L” width 90 – 24 – 24 – ns
t
c(XCIN) XCIN input cycle time 20 – 20 – 20 – µs
t
WH(XCIN) XCIN input “H” width 10 – 10 – 10 – µs
t
WL(XCIN) XCIN input “L” width 10 – 10 – 10 – µs
Table 5.27 Timing Requirements of TRJiIO (i = 0 or 1)
(V
SS = 0 V and Topr = −20 to 85 °C (N version)/ −40 to 85 °C (D version), unless
otherwise specified.)
Symbol Parameter
Standard
UnitVCC = 2.2V, Topr = 25°CVCC = 3V, Topr = 25°CVCC = 5V, Topr = 25°C
Min. Max. Min. Max. Min. Max.
t
c(TRJIO) TRJiIO input cycle time 500 – 300 – 100 – ns
t
WH(TRJIO) TRJiIO input “H” width 200 – 120 – 40 – ns
t
WL(TRJIO) TRJiIO input “L” width 200 – 120 – 40 – ns
External Clock
Input
tWH(XIN),
tWH(XCIN)
tC(XIN), tC(XCIN)
tWL(XIN), tWL(XCIN)
TRJiIO input
tC(TRJIO)
tWL(TRJIO)
tWH(TRJIO)