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74HCT253DB Scheda tecnica(PDF) 7 Page - NXP Semiconductors

Il numero della parte 74HCT253DB
Spiegazioni elettronici  Dual 4-input multiplexer; 3-state
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Produttore elettronici  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HCT253DB Scheda tecnica(HTML) 7 Page - NXP Semiconductors

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74HC_HCT253_3
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 22 April 2010
7 of 17
NXP Semiconductors
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
11. Dynamic characteristics
ΔI
CC
additional
supply current
VI =VCC − 2.1 V;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V;
IO =0A
per input pin; 1In, 2In
inputs
-
40
144
-
180
-
196
μA
per input pin; nOE input
-
110
396
-
495
-
539
μA
per input pin; Sn input
-
110
396
-
495
-
539
μA
CI
input
capacitance
-3.5
-
pF
Table 6.
Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
25
°C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
Table 7.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); For test circuit see Figure 8.
Symbol Parameter
Conditions
25
°C
−40 °C to
+85
°C
−40 °C to
+125
°C
Unit
Typ
Max
Max
Max
74HC253
tpd
propagation delay
1ln to 1Y or 2ln to 2Y;
see Figure 6
[1]
VCC = 2.0 V
55
175
220
265
ns
VCC = 4.5 V
20
35
44
53
ns
VCC = 5.0 V; CL = 15 pF
17
-
-
-
ns
VCC = 6.0 V
16
30
37
45
ns
Sn to nY; see Figure 6
VCC = 2.0 V
58
175
220
265
ns
VCC = 4.5 V
21
35
44
53
ns
VCC = 5.0 V; CL = 15 pF
18
-
-
-
ns
VCC = 6.0 V
17
30
37
45
ns
ten
enable time
nOE to nY; see Figure 7
[2]
VCC = 2.0 V
30
100
125
150
ns
VCC = 4.5 V
11
20
25
30
ns
VCC = 6.0 V
9
17
21
26
ns
tdis
disable time
nOE to nY; see Figure 7
[3]
VCC = 2.0 V
41
150
190
225
ns
VCC = 4.5 V
15
30
38
45
ns
VCC = 6.0 V
12
26
33
38
ns


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