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SN74ALS258AN Arkusz danych(PDF) 4 Page - Texas Instruments

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Numer części SN74ALS258AN
Szczegółowy opis  QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
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SN74ALS258AN Arkusz danych(HTML) 4 Page - Texas Instruments

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SN54ALS257A, SN54ALS258A, SN74ALS257A, SN74ALS258A, SN74AS257, SN74AS258
QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS
WITH 3STATE OUTPUTS
SDAS124C − APRIL 1982 − REVISED AUGUST 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS257A
SN54ALS258A
SN74ALS257A
SN74ALS258A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = −18 mA
−1.5
−1.5
V
VCC = 4.5 V to 5.5 V,
IOH = −0.4 mA
VCC−2
VCC−2
VOH
VCC = 4.5 V
IOH = −1 mA
2.4
3.3
V
VOH
VCC = 4.5 V
IOH = −2.6 mA
2.4
3.2
V
VOH
VCC = 4.5 V
IOL = 12 mA
0.25
0.4
0.25
0.4
V
VOH
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
20
20
µA
IOZL
VCC = 5.5 V,
VO = 0.4 V
−20
−20
µA
II
VCC = 5.5 V,
VI = 7 V
0.1
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
IIL
VCC = 5.5 V,
VI = 0.4 V
−0.1
−0.1
mA
IO‡
VCC = 5.5 V,
VO = 2.25 V
−20
−112
−30
−112
mA
SN54ALS257A,
Outputs high
3
8
3
6
SN54ALS257A,
SN74ALS257A
VCC = 5.5 V
Outputs low
8
12
8
12
ICC
SN74ALS257A
VCC = 5.5 V
Outputs disabled
9
14
9
14
mA
ICC
SN54ALS258A,
Outputs high
2.5
5
2.5
4
mA
SN54ALS258A,
SN74ALS258A
VCC = 5.5 V
Outputs low
7
11
7
11
SN74ALS258A
VCC = 5.5 V
Outputs disabled
8
13
8
13
† All typical values are at VCC = 5 V, TA = 25°C.
‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
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
(INPUT)
(OUTPUT)
SN54ALS257A
SN74ALS257A
MIN
MAX
MIN
MAX
tPLH
A or B
Any Y
2
12
2
10
ns
tPHL
A or B
Any Y
2
14
2
12
ns
tPLH
A /B
Any Y
4
21
6
18
ns
tPHL
A /B
Any Y
6
25
6
22
ns
tPZH
OE
Any Y
3
20
4
16
ns
tPZL
OE
Any Y
4
22
5
18
ns
tPHZ
OE
Any Y
2
12
2
10
ns
tPLZ
OE
Any Y
2
35
4
15
ns
§ For conditions shown MIN or MAX, use the appropriate value specified under recommended operating conditions.


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