Datasheet

Section 26 Electrical Characteristics
Rev. 4.00 Sep 27, 2006 page 911 of 1130
REJ09B0327-0400
26.7 Operational Timing
26.7.1 Test Conditions for the AC Characteristics
C
Chip output
pin
R
H
R
L
C = 30 pF: All output ports
R
L
= 2.4 kΩ
R
H
= 12 kΩ
I/O timing test levels
• Low level: 0.8 V
• High level: 2.0 V
V
CC
Figure 26.4 Output Load Circuit
26.7.2 Clock Timing
t
CH
t
cyc
t
Cf
t
CL
t
Cr
φ
Figure 26.5 System Clock Timing