74HCT2G126DP(2013) 查看數據表（PDF） - NXP Semiconductors.
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74HCT2G126DP Datasheet PDF : 15 Pages
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NXP Semiconductors
74HC2G126; 74HCT2G126
Dual buffer/line driver; 3-state
Table 8. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 8.
Symbol Parameter Conditions
Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit
Min Typ[1] Max
Min
Max
ten
enable time nOE to nY; see Figure 7
[2]
VCC = 2.0 V
-
40
115
-
VCC = 4.5 V
-
11
23
-
VCC = 6.0 V
-
8
20
-
tdis
disable time nOE to nY; see Figure 7
[2]
VCC = 2.0 V
-
25
125
-
VCC = 4.5 V
-
12
25
-
VCC = 6.0 V
-
10
21
-
tt
transition nY; see Figure 6
time
VCC = 2.0 V
[2]
-
18
75
-
VCC = 4.5 V
-
6
15
-
VCC = 6.0 V
-
5
13
-
CPD
power
per buffer; VI = GND to VCC
[3]
dissipation
capacitance
output enabled
-
11
-
-
output disabled
-
1
-
-
135
ns
27
ns
23
ns
150
ns
30
ns
26
ns
90
ns
18
ns
15
ns
-
pF
-
pF
74HCT2G126
tpd
propagation nA to nY; see Figure 6
delay
VCC = 4.5 V
[2]
-
15
30
-
VCC = 5.0 V; CL = 15 pF
-
12
-
-
ten
enable time nOE to nY; see Figure 7;
VCC = 4.5 V
[2] -
11
31
-
tdis
disable time nOE to nY; see Figure 7;
VCC = 4.5 V
[2] -
11
35
-
tt
transition nY; see Figure 6; VCC = 4.5 V
[2] -
6
15
-
time
36
ns
-
ns
38
ns
42
ns
18
ns
CPD
power
per buffer;
dissipation VI = GND to VCC 1.5 V
capacitance output enabled
[3]
-
11
-
-
-
pF
output disabled
-
1
-
-
-
pF
[1] All typical values are measured at Tamb = 25 C.
[2] 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.
[3] 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_HCT2G126
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 18 December 2013
© NXP B.V. 2013. All rights reserved.
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