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NTE Electronics - TTL - 4-Bit Binary Full Adder

Numéro de référence NTE7483
Description TTL - 4-Bit Binary Full Adder
Fabricant NTE Electronics 
Logo NTE Electronics 





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NTE7483 fiche technique
NTE7483
Integrated Circuit
TTL 4Bit Binary Full Adder with Fast Carry
Description:
The NTE7483 is a 4bit binary full adder in a 16Lead plastic DIP type package that performs the addition
of two 4bit binary numbers. The sum () outputs are provided for each bit and the resultant carry (C4) is
obtained from the fourth bit. This device features full internal lookahead across all four bits generating the
carry term in ten nanoseconds (typ). This capability provides the system designer with partial lookahead
performance at the economy and reduced package count of a ripplycarry implementation.
The adder logic, including the carry, is implemented in its true form. End around carry can be accomplished
without the need for logic or level inversion.
Features:
D FullCarry LookAhead Across the Four Bits
D Systems Achieve Partial LookAhead Performance with the Economy of RippleCarry
D The NTE74283 is Recommended for New Design as it Features Supply Voltage and GND on
Corner Pins to Simplify Board Layout.
Absolute Maximum Ratings: (Note 1)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Interemitter Voltage (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65C to +150C
Note 1. Unless otherwise specified, all voltages are referenced to GND.
Note 2. This is the voltage between two emitters of a multipleemitter transistor. This rating applies
between the following pairs: A1 and B1, A and B2, A3 and B3, A4 and B4.
Recommended Operating Conditions:
Parameter
Supply Voltage
HighLevel Output Current
Any Output Except C4
Output C4
LowLevel Output Current
Any Output Except C4
Output C4
Operating Temperature Range
Symbol
VCC
IOH
IOL
TA
Min Typ Max Unit
4.75 5.0 5.25 V
− − −800 A
− − −400 A
− − 16 mA
− − 8 mA
0 +70 C

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