QS74FCT1280TSO

Overview

The QS74FCT1280TSO is a high-speed CMOS parity generator and checker integrated circuit manufactured by Quality Semiconductor. It supports 9-bit data processing within the 74FCT logic family. The device operates on a supply voltage range of 4.75 V to 5.25 V. It is designed for surface mount installation in a small outline package. This component provides efficient parity generation and checking capabilities for digital systems requiring error detection.

Feature Summary

• High-speed CMOS technology implementation
• Integrated parity generation and checking functions
• Supports 9-bit data word processing

Applications

• Digital communication systems requiring error detection
• Memory subsystems with parity checking requirements
• Data bus integrity verification circuits

Procurement Notes

Verify the obsolete status of this part number before procurement planning. Confirm package compatibility and pinout alignment with existing designs. Check for authorized distributors offering remaining stock or qualified alternatives. Ensure documentation matches the specific suffix designation for accurate integration.

Selection Notes

Select this component when 9-bit parity handling is required within the 74FCT family constraints. Evaluate power consumption against system thermal limits given the CMOS architecture. Consider the surface mount package type for PCB layout optimization. Verify voltage tolerance matches the target system's 5V rail specifications.

Part Context

This part belongs to the 74FCT series, which bridges TTL and CMOS performance characteristics. Quality Semiconductor produced this variant before corporate acquisitions affected product lines. The TSO suffix indicates a specific surface mount package configuration. It serves as a specialized logic function within broader digital signal processing applications.

Replacement Considerations

Check for direct equivalents from Texas Instruments or other manufacturers holding former Quality Semiconductor assets. Verify functional compatibility regarding pinouts and electrical characteristics. Ensure replacement parts maintain the 9-bit parity capability and FCT speed grades.