4585

4-bit magnitude comparator


B₂	1 •	16	Vcc
A₂	2	15	A₃
Q_A=B	3	14	B₃
I_A>B	4	13	Q_A>B
I_A<B	5	12	Q_A<B
I_A=B	6	11	B₀
A₁	7	10	A₀
GND	8	9	B₁

Pin	Symbol	Description
1	B₂	word B input
2	A₂	word A input
3	Q_A=B	A = B output
4	I_A>B	A > B expansion input
5	I_A<B	A < B expansion input
6	I_A=B	A = B expansion input
7	A₁	word A input
8	GND	ground
9	B₁	word B input
10	A₀	word A input
11	B₀	word B input
12	Q_A<B	A < B output
13	Q_A>B	A > B output
14	B₃	word B input
15	A₃	word A input
16	Vcc	supply voltage

Notes

The least significant (or only) comparator in a chain should have I_A=B and I_A>B tied high and I_A<B tied low.
To compare more than 4 bits, connect Q_A<B and Q_A=B to the inputs of the next significant comparator. I_A>B of the next significant comparator should be tied high.

Note: Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information.