DM74LS283N

Specialty Logic Overview

The DM74LS283N 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 output from the fourth bit. The device features full internal look-ahead across all four bits, enabling 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. Typical power dissipation per 4-bit adder is 95 mW.

Specialty Logic Feature Summary

• Full internal look-ahead logic across all four bits
• Adder logic implemented in true form for end-around carry capability
• Provides partial look-ahead performance with ripple-carry economy

Specialty Logic Applications

• Digital circuit design requiring 4-bit binary addition
• Systems utilizing partial look-ahead performance
• Applications requiring end-around carry without logic inversion

Specialty Logic Procurement Notes

Verify that the component matches the specific DM74LS283N part number and package type (16-Lead Plastic Dual-In-Line). Confirm manufacturer details align with onsemi specifications. Check for RoHS compliance status as indicated in official documentation. Ensure the device meets the recommended operating conditions for voltage and temperature before integration into final designs.

Specialty Logic Selection Notes

Select this component when a 4-bit binary adder with fast carry is required. Consider the full internal look-ahead feature for improved performance compared to standard ripple-carry adders. Verify compatibility with system voltage levels and temperature ranges. Evaluate the trade-off between the economy of ripple-carry implementation and the benefits of partial look-ahead performance for the specific application requirements.

Specialty Logic Part Context

The DM74LS283N belongs to the 74LS series of logic integrated circuits. It is designed for general-purpose digital applications requiring arithmetic operations. The device is available in a 16-lead PDIP package. It is part of a family of adders that provide efficient binary addition capabilities for various computing and data processing systems.

Specialty Logic Replacement Considerations

Direct substitutes include SN74LS283N from Texas Instruments. Verify pinout and electrical characteristics match before replacement. Other compatible parts may exist within the 74LS series; consult official datasheets for cross-reference information.