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參數(shù)資料
| 型號： | mPD789326GB-xxx-8ET |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 80/96頁 |
| 文件大?。?/td> | 482K |
| 代理商： | MPD789326GB-XXX-8ET |
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Preliminary Product Information U14673EJ1V0PM00
80
μ
PD789322,789324,789326,789327
Main System Clock Oscillator Characteristics
(T
A
=
40 to +85°C, V
DD
= 1.8 to 5.5 V)
Resonator
Recommended Circuit
Parameter
Conditions
MIN.
TYP.
MAX.
Unit
Oscillation frequency
(f
X
)
Note 1
1.0
5.0
MHz
Ceramic
resonator
X1
X2
V
DD
C1
C2
Oscillation
stabilization time
Note 2
After V
DD
has reached the MIN.
oscillation voltage range
4
ms
Oscillation frequency
(f
X
)
Note 1
1.0
5.0
MHz
Crystal
resonator
X1
X2
IC
C1
C2
Oscillation
stabilization time
Note 2
30
ms
X1 input frequency
(f
X
)
Note 1
1.0
5.0
MHz
External
clock
X2
X1
X1 input high-/low-
level width (t
XH
, t
XL
)
85
500
ns
Notes 1.
Indicates only oscillator characteristics. Refer to AC Characteristics
for instruction execution time.
2.
Time required to stabilize oscillation after reset or STOP mode release.
Cautions 1. When using the main system clock oscillator, wire as follows in the area enclosed by the
broken lines in the above figures to avoid an adverse effect from wiring capacitance.
Keep the wiring length as short as possible.
Do not cross the wiring with other signal lines.
Do not route the wiring near a signal line through which a high fluctuating current flows.
Always make the ground point of the oscillator capacitor the same potential as V
SS
.
Do not ground the capacitor to a ground pattern through which a high current flows.
Do not fetch signals from the oscillator.
2. When the main system clock is stopped and the device is operating on the subsystem clock,
wait until the oscillation stabilization time has been secured by the program before switching
back to the main system clock.
Remark
For the resonator selection and oscillator constant, customers are requested to either evaluate the
oscillation themselves or apply to the resonator manufacturer for evaluation.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MPD789327 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
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| MPD789445 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
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