DM74LS283N ,4-Bit Binary Adder with Fast CarryFeaturesYFull-carry look-ahead across the four bitsThese full adders perform the addition of two 4- ..
DM74LS293N ,7 V, 4-bit binary counterFeatures
I GND and Vcc on Corner Pins (Pins 7 and 14
respectively)
I Typical power dissipati ..
DM74LS298N ,Quad 2-Port Register Multiplexer with StorageFeaturesThe DM74LS298 is a quad 2-port register. It is the logical Select from two data sourcesequ ..
DM74LS298N ,Quad 2-Port Register Multiplexer with StorageFunctional DescriptionThis device is a high speed quad 2-port register. It selects four bits of dat ..
DM74LS299N ,8-Input Universal Shift/Storage Register with Common Parallel I/O Pins
DM74LS30N ,8-Input NAND GateGeneral DescriptionThis device contains a single gate which performs the logicNAND function. Orderi ..
DS2223 ,256朾it EconoRAMDS2223/DS2224DS2223/DS2224EconoRAM
DS2223 ,256朾it EconoRAMDS2223/DS2224DS2223/DS2224EconoRAM
DS2223Z ,256朾it EconoRAMDS2223/DS2224DS2223/DS2224EconoRAM
DS2224 ,32朾it serial number (ROM), 224朾it SRAMDS2223/DS2224DS2223/DS2224EconoRAM
DS2227-100 ,Flexible NV SRAM StikFEATURES PIN ASSIGNMENT Flexibly organized as 128k x 32, 256k x 16,or 512k x 8 bits Data retentio ..
DS2227-120 ,Flexible NV SRAM Stikapplications data integrity is paramount. TheDS2227 provides two batteries for each SRAM and an int ..
54LS283DMQB-DM74LS283N
4-Bit Binary Adders with Fast Carry
TL/F/6421
54LS283/DM54LS283/DM74LS283
4-Bit
Binary
Adders
with
Fast
Carry
June 1989
54LS283/DM54LS283/DM74LS283
4-Bit Binary Adders with Fast Carry
General Description
Thesefull adders performthe additionoftwo 4-bit binary
numbers.The sum(R) outputsare providedfor eachbitand
the resultant carry (C4)is obtained fromthe fourthbit.
These adders featurefull internal look ahead acrossallfour
bits. This providesthe system designer with partial look-
ahead performanceatthe economyand reduced package
countofa ripple-carry implementation.
The adder logic, includingthe carry,is implementedinits
true form meaningthatthe end-around carrycanbe accom-
plished withoutthe needfor logicor level inversion.
Features Full-carry look-ahead acrossthe fourbits Systems achieve partial look-ahead performance with
the economyof ripple carry Typical add times
Two 8-bit words25ns
Two 16-bit words45ns Typical power dissipationper 4-bit adder95 mW Alternate Military/Aerospace device (54LS283)is avail-
able. Contacta National Semiconductor Sales Office/
Distributorfor specifications.
Connection Diagram
Dual-In-Line Package
TL/F/6421–1
OrderNumber54LS283DMQB, 54LS283FMQB,54LS283LMQB,
DM54LS283J, DM54LS283W,DM74LS283Mor DM74LS283N
SeeNS Package Number E20A, J16A, M16A, N16Eor W16A
C1995National SemiconductorCorporation RRD-B30M105/PrintedinU.S.A.
