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HCF4556 Fiches technique(PDF) 2 Page - STMicroelectronics

No de pièce HCF4556
Description  DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXER OUTPUT LOW ON SELECT
PDF  9 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HCF4556 Fiches technique(HTML) 2 Page - STMicroelectronics

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HCF4556B
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IINPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
FUNCTIONAL DIAGRAM
PIN No
SYMBOL
NAME AND FUNCTION
2, 3
A, B
Select Inputs (1/2 of dual)
1E
Enable Input (1/2 of dual)
4, 5, 6, 7
Q0 to Q3
Outputs (1/2 of dual)
14, 13
A, B
Select Inputs (1/2 of dual)
15
E
Enable Input (1/2 of dual)
12, 11, 10, 9
Q0 to Q3
Outputs (1/2 of dual)
8
VSS
Negative Supply Voltage
16
VDD
Positive Supply Voltage
INPUTS ENABLE SELECT
OUTPUTS
E
BA
Q3
Q2
Q1
Q0
LLL
H
H
H
L
L
L
H
H
HLH
LHL
HLH
H
L
H
H
L
HHH
H
X
X
HHHH



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