Datasheet

Section 15 Electrical Characteristics
Rev. 6.00 Aug 04, 2006 page 505 of 680
REJ09B0145-0600
15.6.3 AC Characteristics
Table 15.19 lists the control signal timing, and tables 15.20 and 15.21 list the serial interface
timing.
Table 15.19 Control Signal Timing
Applicable
Values
Reference
Item Symbol Pins Min Typ Max Unit Test Condition Figure
f
OSC
OSC
1
, OSC
2
2—10MHzV
CC
= 2.7 V to 3.6 VSystem clock
oscillation
frequency
2—4 V
CC
= 1.8 V to 3.6 V
t
OSC
OSC
1
, OSC
2
100 — 500
(1000)
ns V
CC
= 2.7 V to 3.6 V Figure 15.1
*
2
OSC clock (φ
OSC
)
cycle time
250 — 500
(1000)
V
CC
= 1.8 V to 3.6 V
t
cyc
2 — 128 t
OSC
System clock (φ)
cycle time
— — 128 µs
Subclock oscilla-
tion frequency
f
W
X
1
, X
2
— 32.768
or
38.4
—kHz
Watch clock (φ
W
)
cycle time
t
W
X
1
, X
2
— 30.5
or
26.0
— µs Figure 15.1
Subclock (φ
SUB
)
cycle time
t
subcyc
2—8t
W
*
1
Instruction cycle
time
2——t
cyc
t
subcyc
Oscillation
stabilization time
t
rc
OSC
1
, OSC
2
— 20 45 µs Ceramic Oscillator
Parameters
V
CC
= 2.2 V to 3.6 V
Figure 15.10
— 80 — Ceramic Oscillator
Parameters
Except the above
— 0.8 2 ms Crystal Oscillator
Parameters
V
CC
= 2.7 V to 3.6 V
— 1.2 3 Crystal Oscillator
Parameters
V
CC
= 2.2 V to 3.6 V