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MM54HC283 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. MM54HC283
Description  4-Bit Binary Adder with Fast Carry
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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MM54HC283 Datasheet(HTML) 1 Page - National Semiconductor (TI)

   
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TLF5332
January 1988
MM54HC283MM74HC283
4-Bit Binary Adder with Fast Carry
General Description
This full adder performs the addition of two 4-bit binary num-
bers utilizing advanced silicon-gate CMOS technology The
sum (R) outputs are provided for each bit and the resultant
carry (C4) is obtained from the fourth bit These adders fea-
ture full internal look ahead across all four bits This pro-
vides the system designer with partial look-ahead perform-
ance at the economy and reduced package count of a rip-
ple-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 All in-
puts are protected from damage due to static discharge by
internal diode clamps to VCC and ground
Features
Y
Full-carry look-ahead across the four bits
Y
Systems
achieve
partial
look-ahead
performance
with the economy of ripple carry
Y
Wide supply range 2V to 6V
Y
Low quiescent power consumption 8 mAat25 C
Y
Low input current 1 mA maximum
Connection Diagram
Dual-In-Line Package
TLF5332 – 1
Top View
Order Number MM54HC283 or MM74HC283
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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