HD74HCT620 Datasheet, PDF (3/9 Pages) Hitachi Semiconductor – Octal Bus Transceivers (with inverted 3-state outputs)/

Block Diagram
HD74HCT620
GAB
GBA
A1
VCC
A2
A3
A4
A5
A6
A7
A8
HD74HCT620/HD74HCT623
VCC
B1
B2
B3
B4
B5
B6
B7
B8
3