54AC175/Q2A

Overview

The 54AC175/Q2A is a high-performance, quad D-type flip-flop manufactured by Rochester Electronics. It belongs to the AC logic series and features positive edge triggering with complementary outputs. The device is housed in a PDSO16 package, specifically identified as SOIC-16 with dimensions of 0.150 inches width. It operates within a temperature range of -55 °C to 125 °C, suitable for military and aerospace applications. Key parameters include 16 terminals, 4 bits per function, and compliance with JESD-30 code R-PDSO-G16.

Feature Summary

• Provides four independent D-type flip-flops with complementary outputs for complex digital logic sequencing.
• Engineered for high-reliability environments with extended temperature ratings suitable for defense and aerospace systems.
• Features positive edge-triggered operation ensuring precise timing control in synchronous digital circuits.

Applications

• Military avionics data processing systems
• Aerospace communication equipment state registers
• High-reliability industrial control logic storage

Procurement Notes

Verify component authenticity through authorized distribution channels due to the prevalence of counterfeit devices in the market. Confirm that the specific suffix indicates qualified military-grade performance standards. Request detailed test reports and traceability documentation to ensure compliance with rigorous quality assurance requirements for critical infrastructure applications.

Selection Notes

Select this component when designing systems requiring robust, high-speed logic storage with wide operational temperature ranges. Ensure compatibility with existing power supply voltages and signal levels. Consider the SOIC-16 package constraints for PCB layout and thermal management solutions appropriate for enclosed military or aerospace enclosures.

Part Context

Rochester Electronics specializes in sourcing and distributing active and end-of-life semiconductors, including legacy parts no longer produced by original manufacturers. This part represents their offering of qualified components for long-life programs where supply continuity is critical for defense and aerospace platforms.

Replacement Considerations

Direct substitutes may include other 54AC175 variants from different manufacturers provided they meet MIL-PRF-38535 specifications. Verify pinout compatibility and electrical characteristics before integration. Consult official manufacturer cross-reference guides for approved equivalent part numbers.