74F283SJX

Overview

The Fairchild Semiconductor 74F283SJX is a high-speed 4-bit binary full adder with internal carry lookahead, belonging to the F/FAST logic series. It accepts two 4-bit binary words (A0–A3, B0–B3) and a Carry input (C0), generating sum outputs (S0–S3) and a Carry output (C4). The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of 0°C to 70°C. It is housed in a 16-SOIC surface-mount package with a width of 0.209 inches (5.30mm).

Feature Summary

• High-speed operation enabled by internal carry lookahead architecture for rapid addition processing.
• Accepts two independent 4-bit binary inputs along with a carry input to produce sum and carry outputs.
• Designed for synchronous digital logic applications requiring fast propagation delays.

Applications

• Digital arithmetic logic units performing binary addition.
• Address calculation circuits in microprocessor systems.
• Data processing modules requiring high-speed summation operations.

Procurement Notes

Verify that the component matches the 16-SOIC package specification and confirms the 4.5V to 5.5V supply voltage requirement. Ensure the operating temperature range aligns with system constraints of 0°C to 70°C. Confirm RoHS compliance status as indicated in official documentation before integration into production designs.

Selection Notes

Select this component when a dedicated 4-bit binary full adder with internal carry lookahead is required for high-speed digital applications. It is suitable for designs needing fast propagation delays within standard TTL-compatible voltage levels. Consider the 16-SOIC surface-mount package for PCB layout compatibility and thermal management requirements.

Part Context

This part belongs to the 74F series, known for high-speed performance compared to standard 74LS logic. The 'SJX' suffix typically denotes specific packaging or tape-and-reel configurations within the SOIC family. It serves as a fundamental building block for complex arithmetic operations in digital electronics.

Replacement Considerations

Compatible substitutes include other 74F283 variants from different manufacturers offering identical pinouts and logical functions. Verify electrical characteristics such as propagation delay and supply current to ensure seamless integration without circuit modification.