7483 IC 4-Bit Binary Full Adder (Fast Carry)
he IC 7483 is a high-speed 4-bit binary full adder that adds two 4-bit binary numbers along with a carry-in bit. It provides a 4-bit sum output and a carry-out that enables cascading for multi-bit addition.
Each of the two 4-bit inputs (A and B) is processed using full adder logic for each corresponding bit, and the IC outputs the sum and an end carry bit. The carry-in (Cin) input allows the IC to connect in series with other 7483s to construct 8-bit, 12-bit, or higher-bit adders.
Because of its built-in fast carry generation, the 7483 offers low propagation delays, making it ideal for use in high-speed arithmetic logic units (ALUs), digital counters, and arithmetic sections of microprocessors.
This IC works seamlessly with other TTL devices, thanks to its logic-level compatibility and standard 5V operation. It simplifies digital addition in both standalone and chained configurations.
Key Features
Adds two 4-bit binary numbers
Supports carry-in and carry-out for cascading
Produces 4-bit sum and 1-bit carry output
Fast carry generation logic reduces delay
TTL-compatible inputs and outputs
Directly expandable to higher-bit adders
Compact 16-pin DIP or SOIC package
Applications
Perform binary addition in arithmetic logic units (ALUs).
Design multi-bit adders by cascading multiple ICs.
Create digital calculators and arithmetic circuits.
Build up/down counters that require binary summing.
Implement binary adders in digital signal processors.
Design data path sections in processors or FPGAs.
Create fast parallel adder logic for logic trainers.
Perform logic-level math in control systems.
Use in educational labs for binary arithmetic teaching.
Simplify binary math operations in embedded systems.
Specifications Table
| Parameter | Value |
|---|---|
| Logic Family | TTL |
| Function | 4-bit Binary Full Adder |
| Inputs | A0–A3, B0–B3, Carry-In (Cin) |
| Outputs | Sum0–Sum3, Carry-Out (Cout) |
| Max Operating Voltage | 5.25V |
| Min Operating Voltage | 4.75V |
| Input HIGH Voltage | ≥ 2.0V |
| Input LOW Voltage | ≤ 0.8V |
| Output HIGH Voltage | ≥ 2.4V |
| Output LOW Voltage | ≤ 0.4V |
| Propagation Delay (typical) | 20–30 ns |
| Supply Current (typical) | ~22 mA |
| Operating Temperature Range | 0°C to 70°C ‘ |
| Package Type | DIP-16 / SOIC-16 |
| Number of Pins | 16 |
