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HCF40181BM1 Datasheet

  • HCF40181BM1

  • 4-BIT ARITHMETIC LOGIC UNIT

  • 274.91KB

  • 12頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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HCC/HCF40181B
4-BIT ARITHMETIC LOGIC UNIT
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FULL LOOK-AHEAD CARRY FOR SPEED
OPERATIONS ON LONG WORDS
GENERATES 16 LOGIC FUNCTIONS OF TWO
BOOLEAN VARIABLES
GENERATES 16 ARITHMETIC FUNCTIONS
OF TWO 4-BIT BINARY WORDS
A = B COMPARATOR OUTPUT AVAILABLE
RIPPLE-CARRY INPUT AND OUTPUT AVAIL-
ABLE
TYPICAL ADDITION TIME 200ns @ V
DD
= 10V
STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
QUIESCENT CURRENT AT 20V FOR HCC DE-
VICE
5V, 10V, AND 15V PARAMETRIC RATINGS
INPUT CURRENT OF 100nA AT 18V AND 25擄C
FOR HCC DEVICE
100% TESTED FOR QUIESCENT CURRENT
MEETS ALL REQUIREMENTS OF JEDEC TEN-
TATIVE STANDARD N擄 13A, 鈥漇TANDARD SPE-
CIFICATIONS FOR DESCRIPTION OF 鈥滲鈥?/div>
SERIES CMOS DEVICES鈥?/div>
EY
(Plastic Package)
F
(Ceramic Frit Seal Package)
M1
(Micro Package)
ORDER CODES :
HCC40181BF
HCF40181BEY
HCF40181BM1
PIN CONNECTIONS
DESCRIPTION
The
HCC40181B
(extended temperature range)
and
HCF40181B
(intermediate temperature range)
are monolithic integrated circuits, available in 24-
lead dual in-line plastic or ceramic package and
plastic micro package. The
HCC/HCF40181B
is a
low-power four-bit parallel arithmetic logic unit
(ALU) capable of providing 16 binary arithmetic
operations on two four-bit words and 16 logical func-
tions of two Boolean variables. The mode control
input M selects logical (M = High) or arithmetic (M =
Low) operation. The four select inputs (S0, S1, S2,
and S3) select the desired logical or arithmetic func-
tions, which include AND, OR, NAND, NOR, and ex-
clusive-OR and-NOR in the logical mode, and
addition, subtraction, decrement, left-shift and
straight transfer in the arithmetic mode, according to
the truth table. The
HCC/HCF40181B
operation
may be interpreted with either active-low or active-
high data at the A and B word inputs and the function
outputs F, by using the appropriate truth table. The
HCC/HCF40181B
contains logic for full look-ahead
carry operation for fast carry generation using the
carry-generate and carry-propagate outputs G and
June 1989
1/12

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