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74HC688DB

8-bit magnitude comparator

Nexperia B.V. All rights reserved 

Nexperia

74HC688

8-bit magnitude comparator

11 Application information

Two or more 74HC688 8-bit magnitude comparators may be cascaded to compare binary

or BCD numbers of more than 8 bits. An example is shown in Figure 9.

74HC688

74HC688

74HC688

Pn

Pn-1

P0

P=Q

P=Q

P=Q

output

Qn

8 MSB

Qn-1

E

E

Figure 9. Binary or BCD comparator

Q0

8 LSB

E

aaa-028707

74HC688

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 3 — 4 July 2018

© Nexperia B.V. 2018. All rights reserved.

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