74HCT126D 查看數據表（PDF） - NXP Semiconductors.
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74HCT126D Datasheet PDF : 15 Pages
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Nexperia
74HC126; 74HCT126
Quad buffer/line driver; 3-state
Table 7. Dynamic characteristics …continued
GND = 0 V; CL = 50 pF; for test circuit, see Figure 8.
Symbol Parameter
Conditions
ten
enable time
nOE to nY; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
tdis
disable time
nOE to nY; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
tt
transition time
see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CPD
power dissipation
capacitance
74HCT126
per package;
VI = GND to VCC
tpd
propagation delay nA to nY; see Figure 6
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
ten
enable time
nOE to nY; see Figure 7;
VCC = 4.5 V
tdis
disable time
nOE to nY; see Figure 7;
VCC = 4.5 V
tt
transition time
VCC = 4.5 V; see Figure 6
CPD
power dissipation per package;
capacitance
VI = GND to VCC 1.5 V
Tamb = 25 C
Min Typ Max
[1]
Tamb = 40 C to +125 C Unit
Max (85 C) Max (125 C)
- 41 125
155
- 15 25
31
- 12 21
26
[1]
190
ns
38
ns
32
ns
- 41 125
155
- 15 25
31
- 12 21
26
[1]
190
ns
38
ns
32
ns
- 14 60
75
-
5 12
15
-
4 10
13
[2] -
23
-
-
90
ns
18
ns
15
ns
-
pF
[1]
- 14 24
30
- 11 -
-
[1] -
13 25
31
[1] -
18 28
35
[1] -
5 12
15
[2] -
24
-
-
36
ns
-
ns
38
ns
42
ns
18
ns
-
pF
[1] tpd is the same as tPLH and tPHL.
ten is the same as tPZL and tPZH.
tdis is the same as tPLZ and tPHZ.
tt is the same as tTHL and tTLH.
[2] CPD is used to determine the dynamic power dissipation (PD in W).
PD = CPD VCC2 fi N + (CL VCC2 fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
(CL VCC2 fo) = sum of outputs.
74HC_HCT126
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 1 December 2015
© Nexperia B.V. 2017. All rights reserved
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