HD74HC640_15 Datasheet, PDF (4/13 Pages) Renesas Technology Corp – Octal Bus Transceivers (with 3-state outputs)

HD74HC640, HD74HC643
Pin Arrangement
HD74HC640
HD74HC643
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
(Top View)
20 VCC
19 Enable G
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
(Top View)
20 VCC
19 Enable G
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
Rev.2.00 Mar 30, 2006 page 2 of 10