Datasheet




SDAS081C − APRIL 1982 − REVISED DECEMBER 1994
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
logic diagrams (positive logic)
4Y
3Y
2Y
1Y
12
9
7
4
A
/B
G
4B
4A
3B
3A
2B
2A
1B
1A
1
15
13
14
10
11
6
5
3
2
4Y
3Y
2Y
1Y
12
9
7
4
A
/B
G
4B
4A
3B
3A
2B
2A
1B
1A
1
15
13
14
10
11
6
5
3
2
′
ALS157A
′
ALS158
4Y
3Y
2Y
1Y
12
9
7
4
A
/B
G
4B
4A
3B
3A
2B
2A
1B
1A
1
15
13
14
10
11
6
5
3
2
SN74AS157 SN74AS158
4Y
3Y
2Y
1Y
12
9
7
4
A
/B
G
4B
4A
3B
3A
2B
2A
1B
1A
1
15
13
14
10
11
6
5
3
2
Pin numbers shown are for the D, J, and N packages.