dm74ls283 National Semiconductor Corporation, dm74ls283 Datasheet

no-image

dm74ls283

Manufacturer Part Number
dm74ls283
Description
4-bit Binary Adders With Fast Carry
Manufacturer
National Semiconductor Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
dm74ls283N
Manufacturer:
NS
Quantity:
4 000
Part Number:
dm74ls283N
Manufacturer:
NS/国半
Quantity:
20 000
C 1995 National Semiconductor Corporation
54LS283 DM54LS283 DM74LS283
4-Bit Binary Adders with Fast Carry
General Description
These full adders perform the addition of two 4-bit binary
numbers The sum (R) outputs are provided for each bit and
the resultant carry (C4) is obtained from the fourth bit
These adders feature full internal look ahead across all four
bits This provides the system designer with partial look-
ahead performance at the economy and reduced package
count of a ripple-carry implementation
The adder logic including the carry is implemented in its
true form meaning that the end-around carry can be accom-
plished without the need for logic or level inversion
Connection Diagram
Order Number 54LS283DMQB 54LS283FMQB 54LS283LMQB
TL F 6421
DM54LS283J DM54LS283W DM74LS283M or DM74LS283N
See NS Package Number E20A J16A M16A N16E or W16A
Dual-In-Line Package
Features
Y
Y
Y
Y
Y
Full-carry look-ahead across the four bits
Systems achieve partial look-ahead performance with
the economy of ripple carry
Typical add times
Typical power dissipation per 4-bit adder 95 mW
Alternate Military Aerospace device (54LS283) is avail-
able Contact a National Semiconductor Sales Office
Distributor for specifications
Two 8-bit words 25 ns
Two 16-bit words 45 ns
TL F 6421 – 1
RRD-B30M105 Printed in U S A
June 1989

Related parts for dm74ls283

dm74ls283 Summary of contents

Page 1

... Connection Diagram Order Number 54LS283DMQB 54LS283FMQB 54LS283LMQB DM54LS283J DM54LS283W DM74LS283M or DM74LS283N See NS Package Number E20A J16A M16A N16E or W16A C 1995 National Semiconductor Corporation TL F 6421 ...

Page 2

... Max Max Max DM54 DM74 20 b Max (Note 3) e Max (Note DM74LS283 Units Nom Max Typ Max Units (Note ...

Page 3

Switching Characteristics Symbol Parameter t Propagation Delay Time PLH Low to High Level Output t Propagation Delay Time PHL High to Low Level Output t Propagation Delay Time PLH Low to High Level Output t Propagation Delay Time PHL High ...

Page 4

Logic Diagram LS283 6421 – 2 ...

Page 5

5 ...

Page 6

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) 16-Lead Ceramic Dual-In-Line Package (J) Order Number 54LS283DMQB or DM54LS283J Order Number 54LS283LMQB NS Package Number E20A NS Package Number J16A 6 ...

Page 7

... Physical Dimensions inches (millimeters) (Continued) 16-Lead Small Outline Molded Package (M) 16-Lead Molded Dual-In-Line Package (N) Order Number DM74LS283M NS Package Number M16A Order Number DM74LS283N NS Package Number N16E 7 ...

Page 8

Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 54LS283FMQB or DM54LS283W LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF ...

Related keywords