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HCC40182B Datasheet

  • HCC40182B

  • LOOK-AHEAD CARRY GENERATOR

  • 12頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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HCC/HCF40182B
LOOK-AHEAD CARRY GENERATOR
.
.
.
.
.
.
.
.
.
.
GENERATES HIGH-SPEED CARRY ACROSS
FOUR ADDERS OF ADDER GROUPS
HIGH-SPEED OPERATIONAL : t
PHL
= t
PLH
=
100ns (typ.) @ V
DD
= 10V
CASCADABLE FOR FAST CARRIES OVER N
BITS
DESIGNED FOR USE WITH
HCC/HCF40181B
ALU
STANDARDIZED, SYMMETRICAL OUTPUT
CHARACTERISTICS
QUIESCENT CURRENT SPECIFIED AT 20V
FOR HCC DEVICE
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)
C1
(Plastic Chip Carrier)
ORDER CODES :
HCC40182BFHCF4018
2BM1
DESCRIPTION
The
HCC40182B
(extended temperature range)
and
HCF40182B
(intermediate temperature range)
are monolithic integrated circuits, available in 16-
lead dual in-line plastic or ceramic package and
plastic micro package. The
HCC/HCF40182B
is a
high-speed look-ahead carry generator capable of
anticipating a carry across four binary adders or
groups of adders. The
HCC/HCF40182B
is cascad-
able to perform full look-ahead across n-bit adders.
Carry, propagate-carry, and generate-carry func-
tions are provided as enumerated in the terminal
designation below. The
HCC/HCF40182B,
when
used in conjunction with the
HCC/HCF40181B
arithmetic logic unit (ALU), provides full high-speed
look-ahead carry capability for up to n-bit words.
Each
HCC/HCF40182B
generates the look-ahead
(anticipated carry) across a group of four ALU鈥檚. In
addition, other
HCC/HCF40182B鈥檚
may be em-
played to anticipate the carry across sections of four
look-ahead blocks up to n-bits. Carry inputs and out-
puts of the
HCC/HCF40181B
are active-high logic,
and carry-generate (G) and carry-propagate (P) out-
puts are active low. Therefore the inputs and outputs
of the
HCC/HCF40182B
are compatible. The
HCC/HCF40182B
is similar to industry type
MC14582.
June 1989
PIN CONNECTIONS
1/12

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