NEC PD78F9488 User Manual
Page 352
CHAPTER 22 ELECTRICAL SPECIFICATIONS (
µ
PD789488, 78F9488, 789489, 78F9489)
352
User’s Manual U15331EJ4V1UD
AC Characteristics
(1) Basic operation (T
A
= –40 to +85
°C, V
DD
= 1.8 to 5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
V
DD
= 2.7 to 5.5 V
0.4
8.0
µ
s
Operating with main system
clock
V
DD
= 1.8 to 5.5 V
1.6
8.0
µ
s
Original
oscillation
operation
V
DD
= 1.8 to 5.5 V
114
122
125
µ
s
Cycle time (minimum
instruction execution
time)
T
CY
Operating
with
subsystem
clock
× 4
multiplication
operation
V
DD
= 2.7 to 5.5 V
14.3
15.3
15.6
µ
s
Capture input high-/low-
level width
t
CPTH
,
t
CPTL
CPT20 10
µ
s
V
DD
= 2.7 to 5.5 V
0
4
MHz
TMI60, TMI61 input
frequency
f
TI
V
DD
= 1.8 to 5.5 V
0
275
kHz
V
DD
= 2.7 to 5.5 V
0.125
µ
s
TMI60, TMI61 input
high-/low-level width
t
TIH
,
t
TIL
V
DD
= 1.8 to 5.5 V
1.8
µ
s
Interrupt input high-
/low-level width
t
INTH
,
t
INTL
INTP0 to INTP3
10
µ
s
KR0 to KR7(
µ
PD789488, 78F9488)
10
µ
s
Key return input low-
level width
t
KRL
KR00 to KR07, KR10 to KR17 (
µ
789489,
78F9489)
10
µ
s
RESET low-level width
t
RSL
10
µ
s
T
CY
vs. V
DD
(main system clock)
Power supply voltage V
DD
(V)
Cycle time
T
CY
[ s]
µ
1
2
3
4
5
6
0.1
0.4
1.0
10
60
8.0
Guaranteed
operation range