74HCT244BQ-Q100 查看數據表（PDF） - NXP Semiconductors.
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74HCT244BQ-Q100 Datasheet PDF : 17 Pages
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NXP Semiconductors
74HC244-Q100; 74HCT244-Q100
Octal buffer/line driver; 3-state
10. Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; for load circuit see Figure 8.
Symbol Parameter
Conditions
74HC244-Q100
tpd
propagation delay nAn to nYn;
see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
ten
enable time
nOE to nYn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
tdis
disable time
VCC = 6.0 V
nOE to nYn or 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 per buffer; VI = GND to VCC
capacitance
25 C
40 C to +125 C Unit
Min Typ Max Max
Max
(85 C) (125 C)
[1]
-
-
-
-
[2]
-
-
-
[3]
-
-
-
[4]
-
-
-
[5]
-
30
110
145
11
22
28
9
-
-
9
19
24
36
150
190
13
30
38
10
26
33
39
150
190
14
30
38
11
26
33
14
60
75
5
12
15
4
10
13
35
-
-
165 ns
33 ns
- ns
28 ns
225 ns
45 ns
38 ns
225 ns
45 ns
38 ns
90 ns
18 ns
15 ns
- pF
74HC_HCT244_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1. — 7 August 2012
© NXP B.V. 2012. All rights reserved.
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