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Chapter 1 Overview
The instruction cycle is twice the clock cycle.
The feedback resistor is built-in.
14
Electrical Characteristics
1-5-2 Operating Conditions
Parameter
Supply voltage
1
2
Supply voltage
3 during operation
4
5 Voltage to maintain RAM data V
Operating speed
6
7
Instruction execution time
8
9
Crystal oscillator 1
10 Crystal frequency
11
External capacitors
12
13 Internal feedback resistor RF10
Crystal oscillator 2
14 Crystal frequency
15
External capacitors
16
17 Internal feedback resistor RF20
Note:
OSC1
700k
fxtal1
Typ
MN101C
OSC2
C12
Figure 1-5-1 Crystal Oscillator 1
Symbol
Conditions
fosc ≤ 20.0MHz
V
DD1
fosc ≤ 8.39MHz
V
DD2
fosc ≤ 2.00MHz
V
DD3
*
1
V
fx = 32.768kHz
DD4
STOP mode
DD5
2
tc1
V
=4.5
DD
tc2
V
=2.7
DD
tc3
V
=2.0
DD
1
tc4 *
V
=2.0
DD
Fig. 1-5-1
fxtal 1
V
=4.5
DD
C
11
C
12
Fig. 1-5-2*
1
fxtal 2
C
21
C
22
*1. Only for 48-QFH package
2
t
, t
, t
: OSC1 is the CPU clock
c1
c2
c3
t
: XI is the CPU clock
c4
C11
The instruction cycle is four times the clock cycle.
The feedback resistor is built-in.
Figure 1-5-2 Crystal Oscillator 2
Ta=–40
+85°C V
=2.0
to
DD
Rating
MIN
4.5
2.7
2.0
2.0
1.8
to
5.5V
0.100
to
5.5V
0.238
to
5.5V
1.00
to
5.5V
40
to
5.5V
1.0
32.768
XI
4.0M
fxtal2
Typ
MN101C
XO
C22
5.5V V
=0V
to
SS
Unit
TYP
MAX
5.5
5.5
V
5.5
5.5
5.5
µs
125
20.0 MHz
20
pF
20
700
kΩ
kHz
20
pF
20
4.0
MΩ
C21
*1
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