CHAPTER 20 ELECTRICAL SPECIFICATIONS (TARGET VALUES)
Preliminary User’s Manual U16898EJ1V0UD
286
AC Characteristics
(1) Basic operation (T
A
=
−
40 to +85
°
C, V
DD
= 2.0 to 5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
4.0 V
≤
V
DD
≤
5.5 V
0.2
4
µ
s
3.0 V
≤
V
DD
< 4.0 V
0.33
4
µ
s
2.7 V
≤
V
DD
< 3.0 V
0.4
4
µ
s
Crystal/ceramic oscillation
clock, external clock input
2.0 V
≤
V
DD
< 2.7 V
4
4
µ
s
4.0 V
≤
V
DD
≤
5.5 V
0.25
4
µ
s
2.7 V
≤
V
DD
< 4.0 V
0.5
4
µ
s
Cycle time (minimum
instruction execution time)
T
CY
High-speed Ring-OSC
clock
2.0 V
≤
V
DD
< 2.7 V
4
4
µ
s
4.0 V
≤
V
DD
≤
5.5 V
2/fsam+
0.1
Note
µ
s
TI000 input high-level width,
low-level width
t
TIH
,
t
TIL
2.0 V
≤
V
DD
< 4.0 V
2/fsam+
0.2
Note
µ
s
Interrupt input high-level
width, low-level width
t
INTH
,
t
INTL
1
µ
s
RESET input low-level
width
t
RSL
1
µ
s
Note Selection of fsam = 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, fsam = f
XP
.
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