HD74HC682 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74HC682

8-bit Magnitude Comparator

Hitachi -> Renesas Electronics 

HD74HC682/HD74HC684

8-bit Magnitude Comparator

Description

These magnitude comparators perform comparisons of two eight-bit binary or BCD words. All types

provide P=Q outputs and provide P>Q outputs. The HD74HC682 features 20 k pullup termination

resistors on the Q inputs for analog or switch data.

Type

HD74HC682

HD74HC684

P=Q

Yes

Yes

P>Q

Yes

Yes

Output Enable

No

No

20 kΩ Pullup

Yes

No

Features

• High Speed Operation

• High Output Current: Fanout of 10 LSTTL Loads

• Wide Operating Voltage: VCC = 2 to 6 V

• Low Input Current: 1 µA max

• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

Function Table

Input

Data

Outputs

P, Q

P=Q

P>Q

P=Q

L

H

P>Q

H

L

P<Q

Note:

H

H

1. The P<Q function can be generated by applying the P=Q and P>Q Outputs to a 2-input NAND

gate.

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