參數(shù)資料
型號(hào)： μPD789025
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(yè)數(shù)： 32/52頁(yè)
文件大?。?/td> 275K
代理商： ΜPD789025
32
μ
PD789022, 789024, 789025, 789026
RECOMMENDED PARAMETERS FOR THE OSCILLATION CIRCUIT
Ceramic resonator (T
A
= -40
°
C to +85
°
C)
Manufacturer
Product name
Frequency
(MHz)
Oscillation circuit
constant (pF)
Oscillation
voltage range
(V
DD
)
Remarks
C1
C2
MIN.
MAX.
Murata Mfg.
CSB1000J
Note
1.0
100
100
2.2
5.5
Rd = 4.7 k
CSA2.00MG040
2.0
100
100
1.8
5.5
CST2.00MG040
-
-
With a built-in
capacitor
CSA4.19MG
4.19
100
100
1.8
5.5
CST4.19MGW
-
-
With a built-in
capacitor
CSA5.00MG
5.0
30
30
2.0
5.5
CST5.00MGW
-
-
With a built-in
capacitor
CSA5.00MGU
30
30
1.8
5.5
CST5.00MGWU
-
-
With a built-in
capacitor
TDK
CCR4.19MC3
4.19
-
-
2.0
5.5
With a built-in
capacitor
FCR4.19MC5
-
-
With a built-in
capacitor
CCR5.0MC3
5.0
-
-
2.0
5.5
With a built-in
capacitor
FCR5.0MC5
-
-
With a built-in
capacitor
Note
When the CSB1000J (1.0 MHz) manufactured by Murata Mfg. is used, a limiting resistor (Rd = 4.7 k
) is
necessary (see the following figure). When one of other resonators is used, no limiting resistor is required.
Caution
The oscillation circuit constant and oscillation voltage range indicate the conditions to settle the
oscillation, not to guarantee the accuracy of the oscillation frequency. When an accuracy
oscillation frequency is needed for the implemented circuit, the oscillation frequency of the
resonator should be adjusted on the circuit. Ask the manufacturer of the resonator you use.
X1
X2
CSB1000J
Rd
C2
C1
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