100179DCQR

Overview

The 100179DCQR is a Look-Ahead Carry Generator integrated circuit belonging to the National Semiconductor 100K series. It is housed in a 24-CDIP package with a width of 0.600 inches. The device operates within a voltage range of -4.2V to -5.7V and features four outputs. This component is classified as specialty logic and is RoHS non-compliant.

Feature Summary

• Generates carry signals using look-ahead logic architecture for high-speed arithmetic operations
• Designed for negative voltage supply operation typical of older ECL-compatible logic families
• Provides multiple output channels for parallel carry propagation

Applications

• High-speed binary adder circuits
• Arithmetic Logic Units (ALUs)
• Digital signal processing hardware acceleration

Procurement Notes

Verify RoHS compliance status, as this specific part number is listed as non-compliant. Confirm package integrity for the 24-CDIP form factor. Ensure compatibility with -5V logic systems. Check manufacturer obsolescence status due to the legacy nature of the 100K series.

Selection Notes

Select this component only when designing systems requiring legacy National Semiconductor 100K series compatibility. Verify that the system power supply supports the required -4.2V to -5.7V operating range. Consider pinout compatibility if replacing existing designs.

Part Context

National Semiconductor was a prominent American semiconductor manufacturer specializing in analog devices before its acquisition by Texas Instruments. The 100K series represents a family of high-speed logic components historically used in computing and industrial applications prior to modern CMOS dominance.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the legacy status of the 100K series and specific voltage requirements, direct pin-to-pin replacements may require careful verification of electrical characteristics.