參數(shù)資料
型號: UPD75008CU
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機
文件頁數(shù): 46/66頁
文件大小: 542K
代理商: UPD75008CU
μ
PD75004, 75006, 75008
46
AC CHARACTERISTICS
(T
a
= -40 to +85
°
C, V
DD
= 2.7 to 6.0 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
μ
s
μ
s
CPU Clock Cycle Time*
1
(Minimum Instruction
Execution Time
= 1 Machine Cycle)
t
CY
w/main system clock
V
DD
= 4.5 to 6.0 V
0.95
3.8
64
64
w/subsystem clock
114
122
125
μ
s
TI0 Input Frequency
f
TI
V
DD
= 4.5 to 6.0 V
0
0
1
MHz
kHz
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
275
TI0 Input High-, Low-
Level Widths
t
TIH
,
t
TIL
V
DD
= 4.5 to 6.0 V
0.48
1.8
*2
Interrupt Input High-,
Low-Level Widths
t
INTH
,
t
INTL
INT0
INT1, 2, 4
KR0-7
10
10
10
RESET Low-Level Width
t
RSL
0
1
2
3
4
5
6
0.5
1
2
3
4
5
6
60
Supply voltage V
DD
[V]
C
C
t
CY
vs V
DD
(with main system clock)
μ
64
70
Operation
guaranteed
range
*1: The CPU clock (
Φ
) cycle time (minimum
instruction
execution
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).
time)
is
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