Datasheet

Section 23A Clock Pulse Generator
(H8S/2633, H8S/2632, H8S/2631, H8S/2633F)
Page 1000 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
External Clock: Table 23A.4 and figure 23A.7 show the input conditions for the external clock.
Table 23A.4 External Clock Input Conditions
V
CC
= 3.0 V
to 3.6 V,
PV
CC
= 3.0 V
to 5.5 V
V
CC
= 3.0 V
to 3.6 V,
PV
CC
= 5.0 V
±10%
Item Symbol Min Max Min Max Unit Test Conditions
External clock input low
pulse width
t
EXL
20 — 15 — ns Figure 23A.7
External clock input
high pulse width
t
EXH
20 — 15 — ns
External clock rise time t
EXr
— 10 — 5 ns
External clock fall time t
EXf
— 10 — 5 ns
t
EXH
t
EXL
t
EXr
t
EXf
V
CC
× 0.5
EXTAL
Figure 23A.7 External Clock Input Timing