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SN74AS638ADW データシート(PDF) 2 Page - Texas Instruments

部品番号 SN74AS638ADW
部品情報  OCTAL BUS TRANSCEIVERS
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
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SN74AS638ADW データシート(HTML) 2 Page - Texas Instruments

  SN74AS638ADW Datasheet HTML 1Page - Texas Instruments SN74AS638ADW Datasheet HTML 2Page - Texas Instruments SN74AS638ADW Datasheet HTML 3Page - Texas Instruments SN74AS638ADW Datasheet HTML 4Page - Texas Instruments SN74AS638ADW Datasheet HTML 5Page - Texas Instruments SN74AS638ADW Datasheet HTML 6Page - Texas Instruments SN74AS638ADW Datasheet HTML 7Page - Texas Instruments  
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SN74ALS638A, SN74ALS639A, SN74AS638A, SN74AS639
OCTAL BUS TRANSCEIVERS
SDAS123A – DECEMBER 1983 – REVISED JANUARY 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbols
B2
17
B3
16
B4
15
A5
6
A6
7
A7
8
A8
9
A2
3
A3
4
A4
5
OE
A1
2
G3
19
3 EN2 [AB]
B5
14
B6
13
B7
12
B8
11
B1
18
3 EN1 [BA]
1
DIR
1
2
B2
17
B3
16
B4
15
A5
6
A6
7
A7
8
A8
9
A2
3
A3
4
A4
5
OE
A1
2
G3
19
3 EN2 [AB]
B5
14
B6
13
B7
12
B8
11
B1
18
3 EN1 [BA]
1
DIR
1
2
SN74ALS638A, SN74AS638A
SN74ALS639A, SN74AS639
† These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagrams (positive logic)
SN74ALS638A, SN74AS638A
SN74ALS639A, SN74AS639
To Seven Other Transceivers
OE
A1
DIR
B1
19
2
1
18
To Seven Other Transceivers
OE
A1
DIR
B1
19
2
1
18
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI: All inputs
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-bus I/O ports
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-bus I/O ports
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN74ALS638A, SN74ALS639A
0
°C to 70°C
. . . . . . . . . . . . . . . . .
Storage temperature range
– 65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.


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