74AC374SJ

Overview

The onsemi 74AC374SJ is an octal D-type flip-flop belonging to the 74AC logic series. It features eight independent D-type flip-flops with positive-edge triggering and single-ended inputs. The device provides non-inverting outputs in a 20-SOP package. It operates within a supply voltage range of 2.0 V to 6.0 V. Key electrical characteristics include a maximum propagation delay of 13.5 ns at 3.3 V and 9.5 ns at 5 V. Output drive capabilities are specified as -24 mA for high-level and 24 mA for low-level currents. The component supports surface-mount installation and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Octal configuration with eight independent positive-edge triggered D-type flip-flops
• Wide operating voltage range supporting 2.0 V to 6.0 V supply rails
• High-speed performance with propagation delays down to 9.5 ns at 5 V
• Robust output drive capability with 24 mA sink and source current ratings

Applications

• Parallel data storage and buffering in digital systems
• Timing control circuits requiring precise edge-triggered state changes
• Interface bridging between different voltage domains in mixed-signal designs
• Register files in microprocessor-based architectures

Procurement Notes

Verify the specific suffix 'SJ' against the manufacturer's official datasheet to confirm pinout, package dimensions, and electrical tolerances. Ensure that the required operating temperature range and voltage specifications align with the system design constraints before integration. Cross-reference the part number with authorized distributors to confirm current availability status and authenticity.

Selection Notes

Select this component when an octal register with wide voltage compatibility is required. The 74AC series offers superior speed compared to standard 74LS logic while maintaining CMOS power efficiency. Consider the 20-SOP package for surface-mount assembly needs. Evaluate the 24 mA output drive strength against load requirements to ensure signal integrity without additional buffering stages.

Part Context

This device is part of the broader 74AC family of high-speed CMOS logic ICs manufactured by onsemi. It serves as a fundamental building block for sequential logic circuits. The 74AC series is designed to replace older 74LS and 74HC technologies where higher switching speeds and wider voltage operation are necessary. It complements other octal devices like latches (e.g., 74AC373) within the same product line.

Replacement Considerations

Direct substitutes may include MC74AC374DWG or MC74AC374DWR2G from onsemi, which share identical logical functionality but differ in packaging format. Verify pin compatibility and thermal characteristics when transitioning between SOP and SOIC-20W packages.