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SN74AS257N Fiches technique(PDF) 7 Page - Texas Instruments

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No de pièce SN74AS257N
Description  QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

SN74AS257N Fiches technique(HTML) 7 Page - Texas Instruments

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SN54ALS257A, SN54ALS258A, SN74ALS257A, SN74ALS258A, SN74AS257, SN74AS258
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDAS124C – APRIL 1982 – REVISED AUGUST 1996
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
Ω,
R2 = 500
Ω,
TA = MIN to MAX†
UNIT
SN74AS257
MIN
MAX
tPLH
AorB
Any Y
1
5.5
ns
tPHL
A or B
Any Y
1
6
ns
tPLH
A /B
Any Y
2
11
ns
tPHL
A/B
Any Y
2
10
ns
tPZH
OE
Any Y
2
7.5
ns
tPZL
OE
Any Y
2
9.5
ns
tPHZ
OE
Any Y
1.5
6.5
ns
tPLZ
OE
Any Y
2
7
ns
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
Ω,
R2 = 500
Ω,
TA = MIN to MAX†
UNIT
SN74AS258
MIN
MAX
tPLH
AorB
Any Y
1
5
ns
tPHL
A or B
Any Y
1
4
ns
tPLH
A /B
Any Y
2
9.5
ns
tPHL
A/B
Any Y
2
10
ns
tPZH
OE
Any Y
2
8
ns
tPZL
OE
Any Y
2
10
ns
tPHZ
OE
Any Y
1.5
6
ns
tPLZ
OE
Any Y
2
6.5
ns
† For conditions shown MIN or MAX, use the appropriate value specified under recommended operating conditions.


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