What is the pin configuration of ic 74266?

this shows you everything you need about them

Pin Number Description

1 A Input Gate 1

2 B Input Gate 1

3 Y Output Gate 1

4 A Input Gate 2

5 B Input Gate 2

6 Y Output Gate 2

7 Ground

8 Y Output Gate 3

9 B Input Gate 3

10 A Input Gate 3

11 Y Output Gate 4

12 B Input Gate 4

13 A Input Gate 4

14 Positive Supply