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CD4538 参数 Datasheet PDF下载

CD4538图片预览
型号: CD4538
PDF下载: 下载PDF文件 查看货源
内容描述: 双单稳态精度 [Dual Precision Monostable]
分类和应用:
文件页数/大小: 11 页 / 137 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
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AC Electrical Characteristics (Note 4)  
T
A = 25°C, CL = 50 pF, and t = t = 20 ns unless otherwise specified  
r
f
Symbol  
, t  
Parameter  
Conditions  
Min  
Typ  
Max  
Units  
t
Output Transition Time  
Propagation Delay Time  
V
V
V
= 5V  
100  
50  
200  
100  
80  
ns  
ns  
ns  
TLH THL  
DD  
DD  
DD  
= 10V  
= 15V  
40  
t
, t  
Trigger Operation—  
A or B to Q or Q  
PLH PHL  
V
V
V
= 5V  
300  
150  
100  
600  
300  
220  
ns  
ns  
ns  
DD  
DD  
DD  
= 10V  
= 15V  
Reset Operation—  
C
to Q or Q  
D
V
V
V
V
V
V
V
V
V
= 5V  
250  
125  
95  
500  
250  
190  
70  
60  
50  
0
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
pF  
pF  
µs  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
= 10V  
= 15V  
= 5V  
t
, t  
Minimum Input Pulse Width  
35  
WL WH  
A, B, or C  
= 10V  
= 15V  
= 5V  
30  
D
25  
t
Minimum Retrigger Time  
Input Capacitance  
RR  
= 10V  
= 15V  
0
0
0
C
Pin 2 or 14  
10  
5
IN  
Other Inputs  
7.5  
PW  
V
= 5V  
208  
226  
244  
R
= 100 kΩ  
Output Pulse Width (Q or Q)  
(Note: For Typical Distribution,  
see Figure 6)  
OUT  
DD  
X
X
C
= 0.002 µF  
V
V
V
V
V
V
V
V
V
V
V
= 10V  
= 15V  
= 5V  
211  
216  
230  
235  
9.60  
9.80  
10.00  
0.95  
0.97  
0.99  
±1  
248  
254  
µs  
µs  
ms  
ms  
ms  
s
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
DD  
R
C
= 100 kΩ  
= 0.1 µF  
8.83  
9.02  
9.20  
0.87  
0.89  
0.91  
10.37  
10.59  
10.80  
1.03  
1.05  
1.07  
X
= 10V  
= 15V  
= 5V  
X
R
C
= 100 kΩ  
= 10.0 µF  
X
= 10V  
= 15V  
= 5V  
s
X
s
Pulse Width Match between  
Circuits in the Same Package  
R
C
= 100 kΩ  
= 0.1 µF  
%
%
%
X
= 10V  
= 15V  
±1  
X
C
= 0.1 µF, R = 100 kΩ  
±1  
X
X
Operating Conditions  
R
C
External Timing Resistance  
External Timing Capacitance  
5.0  
0
(Note 5)  
No Limit  
kΩ  
X
X
pF  
Note 4: AC parameters are guaranteed by DC correlated testing.  
Note 5: The maximum usable resistance R is a function of the leakage of the Capacitor C , leakage of the CD4538BC, and leakage due to board layout,  
X
X
surface resistance, etc.  
www.fairchildsemi.com  
6
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