參數(shù)資料
型號: μPD789012
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位單片機微控制器(8位單片微控制器)
文件頁數(shù): 27/44頁
文件大?。?/td> 271K
代理商: ΜPD789012
μ
PD789011, 789012
27
Recommended Oscillating Circuit Constants
Ceramic Resonator (T
A
= –40 to +85
°
C)
C1
C2
MIN.
MAX.
Murata Mfg.
Co., Ltd.
CSB1000J
Note
1.00
100
100
1.9
5.5
Rd = 1.0 k
CSA2.00MG040
2.00
100
100
2.1
5.5
CST2.00MG040
Product containing capacitor
CSA4.19MG
4.19
30
30
1.8
5.5
CST4.19MGW
Product containing capacitor
CSA5.00MG
5.00
30
30
2.2
5.5
CST5.00MGW
Product containing capacitor
CSA5.00MGU
30
30
2.0
5.5
CST5.00MGWU
Product containing capacitor
Note
If the ceramic resonator is the CSB1000J (1.0 MHz) by Murata Mfg. Co., Ltd., the limiting resistor (Rd = 1.0
k
) is needed (see the following figure). If another recommended oscillator is used, the limiting resistor
is not needed.
Manufacturer
Product Name
Frequency
(MHz)
Recommended
Oscillation
Circuit
Constant (pF)
Oscillation
Voltage Range
(V
DD
)
Remarks
Caution
The oscillation circuit constants and oscillation voltage range indicate conditions for stable
oscillation but do not guarantee the accuracy of the oscillation frequency. If the application
circuit requires accuracy of the oscillation frequency, it is necessary to set the oscillation
frequency of the resonator in the application circuit. For this, it is necessary to directly contact
manufacturer of the resonator being used.
X1
X2
CSB1000J
Rd
C2
C1
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