HCF4556BF datasheet(8/14 Pages) STMICROELECTRONICS

Part #	HCF4556BF

Description	DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXERS

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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8 / 14 page

APPLICATIONS (continued)

1 of 16 Decoder using HCC/HCF4555B and

HCC/HCF4556B

HCC/HCF4555B Input to Q3 Output Dynamic

Signal Waveforms

HCC/HCF4556B Input to Q3 Output Dynamic

Signal Waveforms

X = Don’t care.

TRUT H TABLE

Inputs

Q Outputs

E D C B A 0 1 2 3 4 5 6 7 8 9 1 0 1 112 131 4 1 5

0 0 0 0 0 10000 0 0 0 0 0

00000

0 0 0 0 1 01000 0 0 0 0 0

00000

0 0 0 1 0 00100 0 0 0 0 0

00000

0 0 0 1 1 00010 0 0 0 0 0

00000

0 0 1 0 0 00001 0 0 0 0 0

00000

0 0 1 0 1 00000 1 0 0 0 0

00000

0 0 1 1 0 00000 0 1 0 0 0

00000

0 0 1 1 1 00000 0 0 1 0 0

00000

0 1 0 0 0 00000 0 0 0 1 0

00000

0 1 0 0 1 00000 0 0 0 0 1

00000

0 1 0 1 0 00000 0 0 0 0 0

00000

0 1 0 1 1 00000 0 0 0 0 0

10000

0 1 1 0 0 00000 0 0 0 0 0

01000

0 1 1 0 1 00000 0 0 0 0 0

00100

0 1 1 1 0 00000 0 0 0 0 0

00010

0 1 1 1 1 00000 0 0 0 0 0

00001

1 X X X X 00000 0 0 0 0 0

00000

HCC/HCF4555B/4556B

8/14

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