HCF4555B Datasheet, PDF (2/10 Pages) STMicroelectronics – DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXER OUTPUT HIGH ON SELECT

HCF4555B
IINPUT EQUIVALENT CIRCUIT
TRUTH TABLE
INPUTS ENABLE SELECT
E
B
A
L
L
L
L
L
H
L
H
L
L
H
H
H
X
X
X : Don’t Care
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN No
2, 3
1
4, 5, 6, 7
14, 13
15
12, 11, 10, 9
8
16
SYMBOL
A, B
E
Q0 to Q3
A, B
E
Q0 to Q3
V_SS
V_DD
NAME AND FUNCTION
Select Inputs (1/2 of dual)
Enable Input (1/2 of dual)
Outputs (1/2 of dual)
Select Inputs (1/2 of dual)
Enable Input (1/2 of dual)
Outputs (1/2 of dual)
Negative Supply Voltage
Positive Supply Voltage
OUTPUTS
Q3
Q2
Q1
Q0
L
L
L
H
L
L
H
L
L
H
L
L
H
L
L
L
L
L
L
L
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