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MC74HC4538AFELG 参数 Datasheet PDF下载

MC74HC4538AFELG图片预览
型号: MC74HC4538AFELG
PDF下载: 下载PDF文件 查看货源
内容描述: 双精密单稳多谐振荡器(可重触发,复位) [Dual Precision Monostable Multivibrator (Retriggerable,Resettable)]
分类和应用: 振荡器预分频器多谐振动器逻辑集成电路光电二极管时钟
文件页数/大小: 16 页 / 168 K
品牌: ONSEMI [ ON SEMICONDUCTOR ]
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MC74HC4538A
1.1
OUTPUT PULSE WIDTH (τ)
(NORMALIZED TO 25_C NUMBER)
1.05
1
V
CC
= 6 V
0.95
0.9
0.85
V
CC
= 3 V
0.8
−75 −50
−25
0
25
50
75
100
125
150
R
x
= 10 kW
C
x
= 0.1
mF
T
A
, AMBIENT TEMPERATURE (°C)
Figure 6. Normalized Output Pulse Width versus Power Supply Voltage
1.03
1.02
1.01
1
0.99
0.98
0.97
−75 −50
V
CC
= 5.5 V
V
CC
= 5 V
V
CC
= 4.5 V
−25
0
25
50
75
100
125
150
R
x
= 10 kW
C
x
= 0.1
mF
OUTPUT PULSE WIDTH (τ)
(NORMALIZED TO 25_C NUMBER)
T
A
, AMBIENT TEMPERATURE (°C)
Figure 7. Normalized Output Pulse Width versus Power Supply Voltage
t
w(H)
V
CC
50%
A
t
w(L)
B
50%
GND
t
PLH
50%
Q
t
PHL
Q
50%
τ
t
PHL
τ
τ
t
PLH
τ
V
CC
GND
Figure 8. Switching Waveform
http://onsemi.com
7