74HC4538 查看數據表（PDF） - Nexperia B.V. All rights reserved
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74HC4538 Datasheet PDF : 21 Pages
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Nexperia
74HC4538
Dual retriggerable precision monostable multivibrator
10 Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9.
Symbol Parameter Conditions
25 °C
Min Typ[1] Max
-40 °C to
+85 °C
Min Max
tPLH
LOW to HIGH nA, nB to nQ; see Figure 7
propagation
delay
VCC = 2.0 V
VCC = 4.5 V
-
85 265
-
330
-
31
53
-
66
VCC = 5.0 V; CL = 15 pF
-
27
-
-
-
VCC = 6.0 V
-
25
45
-
56
nCD to nQ; see Figure 7
VCC = 2.0 V
-
83 265
-
340
VCC = 4.5 V
-
30
53
-
68
VCC = 6.0 V
-
24
45
-
58
tPHL
HIGH to LOW nA, nB to nQ; see Figure 7
propagation
delay
VCC = 2.0 V
VCC = 4.5 V
-
83 265
-
330
-
30
53
-
66
VCC = 5.0 V; CL = 15 pF
-
27
-
-
-
VCC = 6.0 V
-
24
45
-
56
nCD to nQ; see Figure 7
VCC = 2.0 V
-
80 265
-
330
VCC = 4.5 V
-
29
53
-
66
VCC = 6.0 V
-
23
45
-
56
tt
transition time nQ and nQ; see Figure 7 [2]
VCC = 2.0 V
-
19
75
-
95
VCC = 4.5 V
-
7
15
-
19
VCC = 6.0 V
-
6
13
-
16
tW
pulse width nA LOW; see Figure 8
VCC = 2.0 V
80 17
- 100
-
VCC = 4.5 V
16
6
-
20
-
VCC = 6.0 V
14
5
-
17
-
nB HIGH; see Figure 8
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
nCD LOW; see Figure 8
80 17
- 100
-
16
6
-
20
-
14
5
-
17
-
VCC = 2.0 V
80 19
- 100
-
74HC4538
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 17 March 2017
-40 °C to Unit
+125 °C
Min Max
-
400 ns
-
80 ns
-
- ns
-
68 ns
-
400 ns
-
80 ns
-
68 ns
-
400 ns
-
80 ns
-
- ns
-
68 ns
-
400 ns
-
80 ns
-
68 ns
-
119 ns
-
22 ns
-
19 ns
120
- ns
24
- ns
20
- ns
120
- ns
24
- ns
20
- ns
120
- ns
© Nexperia B.V. 2017. All rights reserved.
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