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Amplifier or comparator.

Part number	74LS682 8-Bit Magnitude Comparator
Category	Integrated Circuits › Op-Amps & Comparators
Package	DIP-20
Pins	20
Resolution	8 bit

74LS682 8-Bit Magnitude Comparator pinout

Pin	Name	Type
1	~P>Q	output
2	P0	input
3	Q0	input
4	P1	input
5	Q1	input
6	P2	input
7	Q2	input
8	P3	input
9	Q3	input
10	Gnd	ground
11	P4	input
12	Q4	input
13	P5	input
14	Q5	input
15	P6	input
16	Q6	input
17	P7	input
18	Q7	input
19	~P=Q	output
20	Vcc	power

Schematic symbol and footprint

Schematic symbol

Footprint: DIP-20_W7.62mm — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.