SN74LS85
CONNECTION DIAGRAM DIP
(TOP VIEW)
V
CC
16
A
3
15
B
2
14
A
2
13
A
1
12
B
1
11
A
0
10
B
0
9
NOTE:
The Flatpak version has the same
pinouts (Connection Diagram) as
the Dual In-Line Package.
1
B
3
2
I
A<B
3
I
A=B
4
I
A>B
5
6
7
8
O
A>B
O
A=B
O
A<B
GND
LOADING
(Note a)
PIN NAMES
A
0
– A
3
, B
0
– B
3
I
A = B
I
A < B
, I
A > B
O
A > B
O
A < B
O
A
= B
Parallel Inputs
A = B Expander Inputs
A < B, A > B, Expander Inputs
A Greater than B Output
B Greater than A Output
A Equal to B Output
HIGH
1.5 U.L.
1.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
10 U.L.
LOW
0.75 U.L.
0.75 U.L.
0.25 U.L.
5 U.L.
5 U.L.
5 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
m
A HIGH/1.6 mA LOW.
LOGIC SYMBOL
10 12 13 15 9 11 14 1
4
2
3
A
0
A
1
A
2
A
3
B
0
B
1
B
2
B
3
I
A>B
O
A>B
I
A<B
O
A<B
I
A=B
O
A=B
V
CC
= PIN 16
GND = PIN 8
5
7
6
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