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SN54HC640 Datasheet(数据表) 2 Page - Texas Instruments

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部件型号  SN54HC640
说明  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
下载  7 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
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SN54HC640 Datasheet(HTML) 2 Page - Texas Instruments

   
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SN54HC640, SN74HC640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS303A – JANUARY 1996 – REVISED MAY 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
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
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
A1
B1
OE
DIR
To Seven Other Transceivers
19
1
218




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