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SN74HC257DT Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce SN74HC257DT
Description  QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
Download  17 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

SN74HC257DT Fiches technique(HTML) 5 Page - Texas Instruments

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SN54HC257, SN54HC258, SN74HC257, SN74HC258
QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS
WITH 3STATE OUTPUTS
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC257
SN74HC257
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
50
100
150
125
A or B
Any Y
4.5 V
10
20
30
25
tpd
A or B
Any Y
6 V
9
17
25
21
ns
tpd
2 V
50
100
150
125
ns
A/B
Any Y
4.5 V
10
20
30
25
A/B
Any Y
6 V
9
17
25
21
2 V
75
150
225
190
ten
G
Any Y
4.5 V
15
30
45
38
ns
ten
G
Any Y
6 V
13
26
38
32
ns
2 V
75
150
225
190
tdis
G
Any Y
4.5 V
15
30
45
38
ns
tdis
G
Any Y
6 V
13
26
38
32
ns
2 V
28
60
90
75
tt
Any Y
4.5 V
8
12
18
15
ns
tt
Any Y
6 V
6
10
15
13
ns
switching characteristics over recommended operating free-air temperature range, CL = 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC257
SN74HC257
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
75
150
245
190
A or B
Any Y
4.5 V
15
30
45
38
tpd
A or B
Any Y
6 V
13
26
38
32
ns
tpd
2 V
75
150
245
190
ns
A/B
Any Y
4.5 V
15
30
45
38
A/B
Any Y
6 V
13
26
38
32
2 V
100
200
300
250
ten
G
Any Y
4.5 V
24
40
60
50
ns
ten
G
Any Y
6 V
18
34
51
43
ns
2 V
45
210
315
265
tt
Any Y
4.5 V
17
42
63
53
ns
tt
Any Y
6 V
13
36
53
45
ns


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