4 Bit Parallel Adder 7483

The 4 Bit Parallel Adder 7483 is a TTL logic IC that adds two 4-bit binary numbers in one step. It takes inputs A1–A4 and B1–B4 plus a carry-in, and gives the 4-bit sum and a carry-out, using internal look-ahead (fast) carry. Several chips can be chained for 8-bit or wider adders, which makes it a classic part for digital electronics labs, calculators and simple ALU projects.

4 Bit Parallel Adder 7483 Specifications

• Function: 4-bit binary full adder with fast carry
• Inputs: A1–A4, B1–B4 and carry-in C0
• Outputs: sum Σ1–Σ4 and carry-out C4
• Logic family: 7400-series TTL
• Supply voltage: 5 V (4.75 V to 5.25 V)
• Package: 16-pin DIP, through-hole
• Power pins: VCC on pin 5, GND on pin 12

4 Bit Parallel Adder 7483 Applications

• Binary addition experiments in digital logic labs
• 8-bit and wider adders by cascading several chips
• Subtractors using two's complement with XOR gates
• Simple ALU, counter and calculator projects
• Code converters, such as BCD adders

What's in the Box

• 1 × 7483 4-bit parallel adder IC

Tip: The 7483 does not use the usual corner power pins: connect VCC to pin 5 and GND to pin 12. To build an 8-bit adder, connect the C4 carry-out (pin 14) of the first chip to the C0 carry-in (pin 13) of the second, and tie C0 of the first chip to GND.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.