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STMicroelectronics - 4-BIT MAGNITUDE COMPARATOR

Numéro de référence HCC4585
Description 4-BIT MAGNITUDE COMPARATOR
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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HCC4585 fiche technique
HCC/HCF4585B
4-BIT MAGNITUDE COMPARATOR
. EXPANSION TO 8, 12, 16 ... 4 N BITS BY CAS-
CADING UNITS
. MEDIUM-SPEED OPERATION : COMPARES
TWO 4-BIT WORDS IN 180ns (typ.) AT 10V
. STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
. 5V, 10V, AND 15V PARAMETRIC RATINGS
. INPUT CURRENT OF 100nA AT 18V AND 25°C
FOR HCC DEVICE
. 100% TESTED FOR QUIESCENT CURRENT
. MEETS ALL REQUIREMENTS OF JEDECTEN-
TATIVE STANDARD N° 13A, ”STANDARD SPE-
CIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
EY F
(Plastic Package) (Ceramic Frit Seal Package)
M1
(Micro Package)
C1
(Plastic Chip Carrier)
ORDER CODES :
HCC4585BF
HCF4585BM1
HCF4585BEY
HCF4585BC1
PIN CONNECTIONS
DESCRIPTION
The HCC4585B (extended temperature range) and
HCF4585B (intermediate temperature range) are
monolithic integrated circuits, available in 16-lead
dual in-line plastic or ceramic package, and plastic
micro package. The HCC/HCF4585B is a 4-bit mag-
nitude comparator designed for use in computer and
logic applications that require the comparison of two
4-bit words. This logic circuit determines whether
one 4-bit word (Binary or BCD) is ”less than”, ”equal
to”, or ”greater than” a second 4-bit word. The
HCC/HCF4585B has eight comparing inputs (A3,
B3, through A0, B0), three outputs (A < B, A = B, A >
B) and three cascading inputs (A < B, A = B, A > B)
that permit systems designers to expand the com-
parator function to 8, 12, 16 ... 4 N bits. When a
single HCC/HCF4585B is used, the cascading in-
puts are connected as follows : (A < B) = low,
(A = B) = high, (A > B) = high. Cascading these units
for comparison of more than 4 bits is accomplished
as shown in typical application.
June 1989
1/12

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