HCC40182BF datasheet(1/12 Pages) STMICROELECTRONICS

No de pièce	HCC40182BF

Description	LOOK-AHEAD CARRY GENERATOR

PDF	12 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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HCC/HCF40182B

June 1989

LOOK-AHEAD CARRY GENERATOR

.

GENERATES HIGH-SPEED CARRY ACROSS

FOUR ADDERS OF ADDER GROUPS

.

HIGH-SPEED OPERATIONAL : tPHL =tPLH =

100ns (typ.) @ VDD = 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

°C

FOR HCC DEVICE

.

100% TESTED FOR QUIESCENT CURRENT

.

MEETS ALL REQUIREMENTS OF JEDEC TEN-

TATIVE STANDARD N

°13A, ”STANDARD SPE-

CIFICATIONS FOR DESCRIPTION OF ”B”

SERIES CMOS DEVICES”

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’s. In

addition, other HCC/HCF40182B’s 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.

EY

(Plastic Package)

F

(Ceramic Frit Seal Package)

C1

(Plastic Chip Carrier)

ORDER CODES :

HCC40182BFHCF4018

2BM1

PIN CONNECTIONS

M1

(Micro Package)

1/12

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