74AC175SJX

Overview

The onsemi 74AC175SJX is a D-type flip-flop integrated circuit belonging to the 74AC logic series. It contains one functional element with four bits per element, packaged in a 16-SOP (SOIC-16) surface-mount configuration. The device operates on a supply voltage range of 2V to 6V and supports a maximum clock frequency of 244 MHz. Key electrical parameters include a propagation delay of 9.5ns at 5V with 50pF load, output currents of ±24mA, and static current of 40µA. It features positive edge triggering, complementary outputs, and a master reset function, operating within a temperature range of -40°C to +85°C.

Feature Summary

• Positive edge triggered D-type flip-flop architecture
• Complementary output configuration for differential signaling
• Integrated master reset functionality
• High-speed operation capability up to 244 MHz

Applications

• Parallel data storage and buffering
• Shift register construction
• Timing control circuits
• Data acquisition systems

Procurement Notes

This component is officially obsolete and no longer manufactured by onsemi. Procurement is restricted to third-party distributors holding remaining stock or surplus inventory. Verify part authenticity carefully as these are non-production units. Availability is subject to market fluctuations without guaranteed supply continuity. Sourcing should prioritize authorized surplus channels to ensure component integrity and traceability.

Selection Notes

Select this component only if legacy compatibility with the 74AC series is required. Note that it is discontinued; active designs must consider alternative sources. Evaluate the 2V to 6V supply range and 9.5ns delay against system requirements. Ensure the 16-SOP package fits the PCB layout constraints. Confirm availability through secondary markets before finalizing specifications.

Part Context

The 74AC175SJX is part of the broader 74AC175 family, which includes variants like the SJ and SCX suffixes. These components share identical logical functions but differ in packaging formats such as SOP or SOIC. The AC series represents high-speed CMOS technology, offering performance improvements over older LS or ALS families while maintaining standard pinouts for backward compatibility in digital logic applications.

Replacement Considerations

Texas Instruments CD74AC175M96 is documented as a similar replacement option.