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The NTE7483 is a 4-bit binary full adder in a 16-lead plastic DIP-type package that performs the addition of two 4-bit 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 look-ahead across all four bits generating the carry term in ten nanoseconds (type). This capability 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. End around carry can be accomplished without the need for logic or level inversion.
Systems achieve partial look−ahead performance with the economy of ripple−carry
The NTE7483 is recommended for new design as it features supply voltage and GND on corner pins
Absolute Maximum Ratings:
Supply voltage VCC: 7V
Input voltage: 7V
Interemitter voltage (Note 2): 5.5V
Operating temperature range TA: 0°C to +70°C
Storage temperature range Tstg: -65°C to +150°C
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Note 1. Unless otherwise specified, all voltages are referenced to GND.
Note 2. This is the voltage between two emitters of a multiple−emitter transistor. This rating applies between the following pairs: A1 and B1, A and B2, A3 and B3, A4 and B4.