HD74HCT449 Datasheet, PDF (2/8 Pages) Hitachi Semiconductor – Quad. Bus Transceivers with Individual Direction Controls

HD74HCT449
Pin Arrangement
GBA 1
A1 2
DIR2 3
A2 4
A3 5
DIR3 6
A4 7
GND 8
Logic Diagram
GBA
GAB
DIR1
(Top view)
16 VCC
15 GAB
14 B1
13 DIR1
12 B2
11 B3
10 DIR4
9 B4
A1
B1
To other three transceivers
2