74ACQ374SCX

Overview

The onsemi 74ACQ374SCX is an octal D-type flip-flop with 3-STATE outputs, part of the 74ACQ automotive-grade logic series. It features a buffered positive edge-triggered clock and common Output Enable (OE) for all flip-flops. The device operates within a supply voltage range of 2V to 6V. Key electrical parameters include a maximum propagation delay of 8.5ns at 5V with 50pF load, output current capability of 24mA source/sink, and static current of 40µA. Input capacitance is 4.5pF. It supports a clock frequency up to 90MHz and functions across a temperature range of -40°C to 85°C.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 standards
• Buffered positive edge-triggered clock input for improved timing performance
• Common Output Enable (OE) control for bus-oriented applications
• TTL-compatible inputs ensuring interoperability with standard logic families

Applications

• Automotive electronic systems requiring robust data storage
• Bus-oriented memory register applications in vehicles
• High-speed data latching in automotive control modules
• Industrial logic circuits operating under wide temperature conditions

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix corresponds to the SCX package variant. Check for RoHS compliance documentation and REACH status. Ensure storage and handling procedures adhere to moisture sensitivity level (MSL) requirements. Validate that the supplier provides traceable manufacturing records for automotive quality assurance purposes.

Selection Notes

Select this component when automotive qualification is mandatory for logic flip-flop applications. Compare against non-automotive AC series variants if environmental ruggedness is required. Consider the 2V to 6V supply range compatibility with existing system power rails. Evaluate the 8.5ns propagation delay against system timing constraints. Verify pinout compatibility with alternative packages if board space is limited.

Part Context

This component belongs to the 74ACQ family, which extends the standard 74AC logic series with enhanced automotive qualifications. It shares functional similarities with the 74ACT374 but differs in supply voltage range and automotive certification. The SCX designation indicates a surface-mount SOIC-20 package configuration optimized for automated assembly processes.

Replacement Considerations

MC74ACQ374SCX is a direct equivalent from the same manufacturer line. CD74AC374E from Texas Instruments offers similar functionality but requires verification of automotive grade status. SN74AC374N is another potential substitute; confirm package dimensions and electrical parameter alignment before integration.