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參數(shù)資料
| 型號(hào)： | μPD78P083A) |
| 廠商： | NEC Corp. |
| 英文描述： | 8 Bit Single Chip Microcontrollers(8位單片微控制器) |
| 中文描述： | 8位單片機(jī)微控制器（8位單片微控制器） |
| 文件頁數(shù)： | 28/44頁 |
| 文件大?。?/td> | 301K |
| 代理商： | ΜPD78P083A) |
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28
m
PD78P083(A)
Resonator
Recommended
Circuit
Parameter
Test Conditions
MIN.
TYP.
MAX. Unit
Ceramic
resonator
Oscillation frequency
V
DD
= Oscillation voltage range
1.0
5.0
MHz
(fX)
Note 1
Oscillation stabilization
After V
DD
came to MIN.
4
ms
time
Note 2
of oscillation voltage range
Crystal
resonator
Oscillation frequency
1.0
5.0
MHz
(fX)
Note 1
Oscillation stabilization
V
DD
= 4.5 to 5.5 V
10
ms
time
Note 2
30
External clock
X1 input frequency
1.0
5.0
MHz
(fX)
Note 1
X1 input high- and
85
500
ns
low-level widths (t
XH
, t
XL
)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Input capacitance
C
IN
f = 1 MHz, Unmeasured pins returned to 0 V.
15
pF
I/O capacitance
C
IO
f = 1 MHz,
Unmeasured pins
returned to 0 V.
P01 to P03, P10 to P17,
P30 to P37, P50 to P57,
P70 to P72, P100, P101
15
pF
Capacitance
(T
A
= 25°C, V
DD
= V
SS
= 0 V)
Remark
Unless otherwise specified, dual-function pin characteristics are the same as port pin characteristics.
Main System Clock Oscillator Characteristics
(T
A
= –40 to +85°C, V
DD
= 1.8 to 5.5 V)
Notes
1.
Only the oscillator characteristics are shown. For the instruction execution time, refer to
AC Character-
istics
.
2.
Time required for oscillation to stabilize after a reset or the STOP mode has been released.
Caution
When using the oscillation circuit of the main system clock, wire the portion enclosed in broken
lines in the figures as follows to avoid adverse influences on the wiring capacitance:
Keep the wiring length as short as possible.
Do not cross the wiring over other signal lines.
Do not route the wiring in the vicinity of lines through which a high fluctuating current flows.
Always keep the ground point of the capacitor of the oscillation circuit at the same potential as
V
SS
.
Do not connect the power source pattern through which a high current flows.
Do not extract signals from the oscillation circuit.
V
PP
C1
X1
C2
X2
V
PP
C1
X1
C2
X2
X2
X1
PD74HCU04
m
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