Datasheet

Section 25 Electrical Characteristics
Rev.6.00 Mar. 18, 2009 Page 930 of 980
REJ09B0050-0600
25.3.3 AC Characteristics
The clock, control signal, bus, DMAC, and on-chip peripheral function timings are shown below.
The measurement conditions of the AC characteristics are shown in figure 25.1.
(1) Clock Timing
Table 25.30 Clock Timing
Conditions: V
CC
= 3.0 V to 3.6 V, AV
CC
= 3.0 V to 3.6 V, V
ref
= 3.0 V to AV
CC
, V
SS
= AV
SS
= 0 V,
φ = 8 MHz to 34 MHz, T
a
= −20°C to +75°C (regular specifications),
T
a
= −40°C to +85°C (wide-range specifications)
Item Symbol Min. Max. Unit Test Conditions
Clock cycle time t
cyc
29.4 125 ns Figure 25.2
Clock pulse high width t
CH
9 ⎯ ns Figure 25.2
Clock pulse low width t
CL
9 ⎯ ns
Clock rising time t
Cr
⎯ 5 ns
Clock falling time t
Cf
⎯ 5 ns
Reset oscillation settling time
(crystal)
t
OSC1
10 ⎯ ms Figure 25.3 (1)
Software standby oscillation
settling time (crystal)
t
OSC2
10 ⎯ ms Figure 25.3 (2)
External clock output delay
settling time
t
DEXT
1 ⎯ ms Figure 25.3 (1)