CHAPTER 19 ELECTRICAL SPECIFICATIONS
User’s Manual U18172EJ2V0UD
287
AC Characteristics
Basic operation (T
A
=
−
40 to +85
°
C, V
DD
= 2.0 to 5.5 V
Note 1
,
V
SS
= 0 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
4.0 V
≤
V
DD
≤
5.5 V
0.2
16
µ
s
3.0 V
≤
V
DD
< 4.0 V
0.33
16
µ
s
2.7 V
≤
V
DD
< 3.0 V
0.4
16
µ
s
Crystal/ceramic oscillation
clock, external clock input
2.0 V
≤
V
DD
< 2.7 V
1
16
µ
s
4.0 V
≤
V
DD
≤
5.5 V
0.23
4.22
µ
s
2.7 V
≤
V
DD
< 4.0 V
0.47
4.22
µ
s
Cycle time (minimum
instruction execution time)
T
CY
High-speed internal
oscillation clock
2.0 V
≤
V
DD
< 2.7 V
0.95
4.22
µ
s
4.0 V
≤
V
DD
≤
5.5 V
2/f
sam
+
0.1
Note 2
µ
s
TI000 input high-level width,
low-level width
t
TIH
,
t
TIL
2.0 V
≤
V
DD
< 4.0 V
2/f
sam
+
0.2
Note 2
µ
s
Interrupt input high-level
width, low-level width
t
INTH
,
t
INTL
1
µ
s
RESET input low-level
width
t
RSL
2
µ
s
Notes 1.
Use this product in a voltage range of 2.2 to 5.5 V because the detection voltage (V
POC
) of the power-on
clear (POC) circuit is 2.1 V
±
0.1 V.
2.
Selection of f
sam
= f
XP
, f
XP
/4, or f
XP
/256 is possible using bits 0 and 1 (PRM000, PRM001) of prescaler mode
register 00 (PRM00). Note that when selecting the TI000 valid edge as the count clock, f
sam
= f
XP
.
CPU Clock Frequency, Peripheral Clock Frequency
Parameter
Conditions
CPU Clock (f
CPU
) Peripheral
Clock
(f
XP
)
4.0 to 5.5 V
125 kHz
≤
f
CPU
≤
10 MHz
3.0 to 4.0 V
125 kHz
≤
f
CPU
≤
6 MHz
2.7 to 3.0 V
125 kHz
≤
f
CPU
≤
5 MHz
500 kHz
≤
f
XP
≤
10 MHz
Ceramic resonator,
crystal resonator,
external clock
2.0 to 2.7 V
Note
125
kHz
≤
f
CPU
≤
2 MHz
500 kHz
≤
f
XP
≤
5 MHz
4.0 to 5.5 V
500 kHz (TYP.)
≤
f
CPU
≤
8 MHz (TYP.)
2.7 to 4.0 V
500 kHz (TYP.)
≤
f
CPU
≤
4 MHz (TYP.)
2 MHz (TYP.)
≤
f
XP
≤
8 MHz (TYP.)
High-speed internal
oscillator
2.0 to 2.7 V
Note
500
kHz
(TYP.)
≤
f
CPU
≤
2 MHz (TYP.) 2 MHz (TYP.)
≤
f
XP
≤
4 MHz (TYP.)
Note
Use this product in a voltage range of 2.2 to 5.5 V because the detection voltage (V
POC
) of the power-on-clear
(POC) circuit is 2.1 V
±
0.1 V.
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