SERIES CMOS DEVICES鈥?/div>
EY
(Plastic Package)
F
(Ceramic Frit Seal Package)
M1
(Micro Package)
C1
(Plastic Chip Carrier)
ORDER CODES :
HCC45XXBF
HCF45XXBM1
HCF45XXBEY
HCF45XXBC1
PIN CONNECTIONS
4555B
DESCRIPTION
The
HCC4555B, HCC4556B
(extended tempera-
ture range) and the
HCF4555B, HCF4556B
(inter-
mediate temperature range) are monolithic
integrated circuits available in 16-lead dual in-line
plastic or ceramic package and plastic micropack-
age.
The
HCC/HCF4555B
and
HCC/HCF4556B
are
dual one-of-four decoders/demultiplexers. Each
decoder has two select inputs (A and B), an Enable
input (E), and four mutually exclusive outputs. On
the
HCC/HCF4555B
the outputs are high on select ;
on the
HCC/HCF4556B
the outputs are low on se-
lect. When the Enable input is high, the outputs of
the
HCC/HCF4555B
remain low and the outputs of
the
HCC/HCF4556B
remain high regardless of the
state of the select inputs A and B.
June 1989
4556B
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