µ
PD75512
49
AC CHARACTERISTICS (T
a
= -40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
(1)
Basic Operation
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
t
CY
w/main system clock
V
DD
= 4.5 to 6.0 V
0.95
64
µ
s
3.8
64
µ
s
w/sub-system clock
114
122
125
µ
s
TI0 Input Frequency
f
TI
V
DD
= 4.5 to 6.0 V
0
1
MHz
0
275
kHz
TI0 Input High-,
t
TIH
,
V
DD
= 4.5 to 6.0 V
0.48
µ
s
Low-Level Widths
t
TIL
1.8
µ
s
Interrupt Input High-,
t
INTH
,
INT0
*2
µ
s
Low-Level Widths
t
INTL
INT1, 2, 4
10
µ
s
KR0-7
10
µ
s
RESET Low-Level Width
t
RSL
10
µ
s
*1: The CPU clock (
Φ
) cycle time is
determined by the oscillation frequency
of the connected oscillator, system clock
control register (SCC), and processor
clock control register (PCC). The figure
on the right is cycle time t
CY
vs. supply
voltage V
DD
characteristics at the main
system clock.
2: 2t
CY
or 128/f
X
depending on the setting
of the interrupt mode register (IM0).
0
1
2
3
4
5
6
0.5
1
2
3
4
5
6
60
Supply voltage V
DD
[V]
Cycle time t
CY
[ s]
t
CY
vs V
DD
(with main system clock)
µ
64
70
Guaranteed operating range
CPU Clock Cycle Time*
1
(Minimum Instruction
Execution Time
= 1 Machine Cycle
Содержание mPD75512
Страница 66: ...µPD75512 66 APPENDIX B RELATED DOCUMENTS ...