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參數(shù)資料
| 型號(hào)： | UPD754264 |
| 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(yè)數(shù)： | 47/68頁(yè) |
| 文件大?。?/td> | 318K |
| 代理商： | UPD754264 |
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47
μ
PD754264
Recommended Oscillator Constants
Ceramic resonator (T
A
= –40 to +85
°
C)
Frequency
Recommended Oscillator
Constant (pF)
Oscillation Voltage
Range (V
DD
)
Manufacturer
Part Number
Remark
(MHz)
C1
C2
MIN. (V)
MAX. (V)
Murata Mfg.
Co., Ltd.
CSB1000J
Note
1.0
100
100
1.8
6.0
Rd = 2.2 k
CSA2.00MG040
2.0
100
100
1.9
—
CST2.00MG040
—
—
On-chip capacitor
CSA4.19MG
4.19
30
30
1.8
—
CST4.19MGW
—
—
On-chip capacitor
CSA6.00MG
6.0
30
30
2.0
—
CST6.00MGW
—
—
On-chip capacitor
CSA6.00MGU
30
30
1.8
—
CST6.00MGWU
—
—
On-chip capacitor
Note
When using the CSB1000J (1.0 MHz) made by Murata Mfg. Co., Ltd. as a ceramic resonator, a limiting resistor
(Rd = 2.2 k
) is necessary (refer to the figure below). This resistor is not necessary when using the other
recommended resonators.
Caution
The oscillator constants and oscillation voltage range indicate conditions for stable oscillation,
but do not guarantee oscillation frequency accuracy. If oscillation frequency accuracy is required
for actual circuits, it is necessary to adjust the oscillation frequency of the oscillator in the actual
circuit. Please contact directly the manufacturer of the resonator to be used.
X1 X2
Rd
C2
CSB1000J
C1
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