HCF4063B_01 Datasheet, PDF (1/9 Pages) STMicroelectronics – 4-BIT MAGNITUDE COMPARATOR

HCF4063B
4-BIT MAGNITUDE COMPARATOR
s QUIESCENT CURRENT SPECIFIED UP TO
20V
s STANDARD B-SERIES OUTPUT DRIVE
s EXPANSION TO 8-16....4 N BITS BY
CASCADING UNIT
s MEDIUM SPEED OPERATION : COMPARES
TWO 4-BIT WORDS IN 250ns (Typ.) at 10V
s 5V, 10V AND 15V PARAMETRIC RATINGS
s INPUT LEAKAGE CURRENT
I_I = 100nA (MAX) AT V_DD = 18V T_A = 25°C
s 100% TESTED FOR QUIESCENT CURRENT
s MEETS ALL REQUIREMENTS OF JEDEC
JESD13B " STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DESCRIPTION
The HCF4063B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
The HCF4063B is a low power 4-bit magnitude
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 HCF4063B 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)
DIP
SOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
HCF4063BEY
HCF4063BM1
T&R
HCF4063M013TR
that permit system s designers to expand the
comparator function to 8, 12, 16...4N bits. When a
single HCF4063B is used the cascading inputs
are connected as follows :
(A<B) = low, (A=B) = high, (A>B) = low.
For words longer than 4 bits, HCF4063B device
may be cascaded by connecting the outputs of the
less-significant comparator to the corresponding
cascading inputs of the more significant
comparator. Cascading inputs (A<B, A=B, and
A>B) on the least significant comparator are
connected to a low, a high, and a low level,
respectively.
PIN CONNECTION
September 2001
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