DM74LS83AN

Specialty Logic Overview

The DM74LS83AN is a 4-bit binary adder with fast carry, manufactured by onsemi. It performs the addition of two 4-bit binary numbers, providing sum outputs for each bit and a resultant carry from the fourth bit. The device features full internal look-ahead across all four bits, offering partial look-ahead performance at the economy of ripple-carry implementation. It operates within a supply voltage range of 4.75V to 5.25V and an operating temperature range of 0°C to +70°C. The component is housed in a 16-lead plastic dual-in-line package (PDIP).

Specialty Logic Feature Summary

• Full internal carry look-ahead across all four bits.
• Logic implemented in true form allowing end-around carry without inversion.
• Provides partial look-ahead performance with ripple-carry economy.

Specialty Logic Applications

• Digital arithmetic circuits requiring 4-bit binary addition.
• Systems utilizing partial look-ahead performance.
• End-around carry implementations.

Specialty Logic Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or onsemi, noting historical corporate transitions. Confirm the specific PDIP-16 package designation N16E matches design requirements. Ensure compatibility with standard TTL logic levels and verify that the component meets the necessary environmental specifications for the intended application environment.

Specialty Logic Selection Notes

Select this component when a 4-bit binary adder with internal carry look-ahead is required. It is suitable for applications needing partial look-ahead performance while maintaining the cost benefits of ripple-carry designs. Consider the 16-pin DIP package for through-hole mounting and ensure the operating conditions align with standard 5V logic systems.

Specialty Logic Part Context

The DM74LS83A belongs to the 74LS series of logic integrated circuits, specifically designed as a 4-bit binary adder. This series is known for low-power Schottky technology, balancing speed and power consumption. The DM74LS83AN variant specifically denotes the through-hole PDIP-16 packaging option available from the manufacturer.

Specialty Logic Replacement Considerations

Direct substitutes include SN74LS83N from Texas Instruments. Verify pinout compatibility and electrical characteristics before substitution.