Part # 74LS283 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: 54LS283 DM54LS283 DM74LS283 4-Bit Binary Adders with Fast Carry

Part Details:

54LS283DM54LS283DM74LS283 June 1989 54LS283 DM54LS283 DM74LS2834-Bit Binary Adders with Fast Carry General Description Features These full adders perform the addition of two 4-bit binary Y Full-carry look-ahead across the four bits numbers The sum (R) outputs are provided for each bit and Y Systems achieve partial look-ahead performance with the resultant carry (C4) is obtained from the fourth bit the economy of ripple carry These adders feature full internal look ahead across all four Y Typical add times bits This provides the system designer with partial look- Two 8-bit words 25 ns ahead performance at the economy and reduced package Two 16-bit words 45 ns count of a ripple-carry implementation Y Typical power dissipation per 4-bit adder 95 mW The adder logic including the carry is implemented in its Y Alternate Military Aerospace device (54LS283) is avail- true form meaning that the end-around carry can be accom- able Contact a National Semiconductor Sales Office plished without the need for logic or level inversion Distributor for specifications 4-Bit Connection Diagram Dual-In-Line Package Binary Adders with Fast TL F 6421 ­ 1 Carry Order Number 54LS283DMQB 54LS283FMQB 54LS283LMQB DM54LS283J DM54LS283W DM74LS283M or DM74LS283N See NS Package Number E20A J16A M16A N16E or W16A C1995 National Semiconductor Corporation TL F 6421 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note)If Military Aerospace specified devices are required Note The ``Absolute Maximum Ratings are those values please contact the National Semiconductor Sales beyond which the safety of the device cannot be guaran- Office Distributors for availability and specifications teed The device should not be operated at these limits The Supply Voltage 7V parametric values defined in the ``Electrical Characteristics table are not guaranteed at the absolute maximum ratings

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74LS283.pdf Datasheet