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74HCT157DB Arkusz danych(PDF) 7 Page - NXP Semiconductors

Numer części 74HCT157DB
Szczegółowy opis  Quad 2-input multiplexer
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Producent  NXP [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
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74HCT157DB Arkusz danych(HTML) 7 Page - NXP Semiconductors

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74HC_HCT157
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 — 31 December 2010
7 of 18
NXP Semiconductors
74HC157; 74HCT157
Quad 2-input multiplexer
10. Dynamic characteristics
Table 7.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 9.
Symbol Parameter
Conditions
Tamb = 25 C
Tamb = 40 C
to +85
C
Tamb = 40 C
to +125
C
Unit
Min
Typ
Max
Min
Max
Min
Max
For type 74HC157
tpd
propagation
delay
nI0, nI1 to nY; see Figure 7
[1]
VCC = 2.0 V
-
36
125
-
155
-
190
ns
VCC = 4.5 V
-
13
25
-
31
-
38
ns
VCC =5V; CL =15pF
-
11
-
-
-
-
-
ns
VCC = 6.0 V
-
10
21
-
26
-
32
ns
S to nY; see Figure 7
[1]
VCC = 2.0 V
-
41
125
-
155
-
190
ns
VCC = 4.5 V
-
15
25
-
31
-
38
ns
VCC =5V; CL =15pF
-
12
-
-
-
-
-
ns
VCC = 6.0 V
-
12
21
-
26
-
32
ns
E to nY; see Figure 8
[1]
VCC = 2.0 V
-
39
115
-
145
-
175
ns
VCC = 4.5 V
-
14
23
-
29
-
35
ns
VCC =5V; CL =15pF
-
11
-
-
-
-
-
ns
VCC = 6.0 V
-
11
20
-
25
-
30
ns
tt
transition
time
nY; see Figure 7
[2]
VCC = 2.0 V
-
19
75
-
95
-
110
ns
VCC = 4.5 V
-
7
15
-
19
-
22
ns
VCC = 6.0 V
-
6
13
-
16
-
19
ns
CPD
power
dissipation
capacitance
CL =50pF;f= 1 MHz;
VI =GND to VCC
[3]
-70
-
-
-
-
-
pF
For type 74HCT157
tpd
propagation
delay
nI0, nI1 to nY; see Figure 7
[1]
VCC = 4.5 V
-
16
27
-
34
-
41
ns
VCC =5V; CL =15pF
-
13
-
-
-
-
-
ns
S to nY; see Figure 7
[1]
VCC = 4.5 V
-
22
37
-
46
-
56
ns
VCC =5V; CL =15pF
-
19
-
-
-
-
-
ns
E to nY; see Figure 8
[1]
VCC = 4.5 V
-
15
26
-
33
-
39
ns
VCC =5V; CL =15pF
-
12
-
-
-
-
-
ns


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