參數(shù)資料
型號: UPD753208
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁數(shù): 61/80頁
文件大?。?/td> 577K
代理商: UPD753208
61
μ
PD753204, 753206, 753208
AC CHARACTERISTICS (T
A
= –40 to +85C, V
DD
= 1.8 to 5.5 V)
Parameter
Symbol
Test conditions
MIN.
TYP.
MAX.
Unit
CPU clock cycle
time
Note 1
t
CY
V
DD
= 2.7 to 5.5 V
0.67
64
μ
s
0.95
64
μ
s
TI0 input frequency
f
TI
V
DD
= 2.7 to 5.5 V
0
1.0
MHz
0
275
kHz
TI0 input
high/low-level width
t
TIH
, t
TIL
V
DD
= 2.7 to 5.5 V
0.48
μ
s
1.8
μ
s
Interrupt input high/
low-level width
t
INTH
,
t
INTL
INT0
IM02 = 0
Note 2
μ
s
IM02 = 1
10
μ
s
INT4
10
μ
s
KR0 to KR3
10
μ
s
RESET low level width
t
RSL
10
μ
s
Notes 1.
The cycle time (minimum instruc-
tion execution time) of the CPU
clock (
Φ
) is determined by the
oscillation frequency of the con-
nected resonator (and external
clock) and the processor clock
control register (PCC). The figure
at the right indicates the cycle
time t
CY
versus supply voltage
V
DD
characteristic.
2.
2t
CY
or 128/f
X
is set by setting the
interrupt mode register (IM0).
1
0
2
3
4
5
6
0.5
1
3
4
5
6
30
64
Supply Voltage V
DD
[V]
t
CY
vs V
DD
C
C
Guaranteed Operation
Range
μ
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