74HC73DB,112

Overview

The 74HC73DB,112 is a dual JK flip-flop with a negative-edge triggered clock and an asynchronous active-low reset input. Manufactured by Nexperia USA Inc., this component belongs to the 74HC logic family and is housed in a 14-SSOP surface-mount package. It operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -40 °C to +125 °C. The device features complementary Q and nQ outputs and includes clamp diodes on inputs for overvoltage tolerance.

Feature Summary

• Dual negative-edge triggered JK flip-flops with individual J and K data inputs
• Asynchronous active-low reset input that overrides clock and data signals
• Complementary Q and nQ outputs for flexible logic interfacing
• Input clamp diodes allow safe interface to voltages exceeding VCC

Applications

• Digital state storage and memory elements in control circuits
• Frequency division and counter circuits in digital systems
• Data synchronization and shift register stages
• Timing sequence generation in industrial control applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific packaging variations. Ensure the supplier provides valid traceability documentation. Validate that the received parts match the 14-SSOP package specification and Nexperia branding before integration into production lines.

Selection Notes

Select this part when dual independent JK flip-flops are required in a compact surface-mount form factor. The HC series ensures compatibility with standard CMOS logic levels across a wide voltage range. Consider the asynchronous reset feature for immediate system initialization needs. Verify that the negative-edge triggering aligns with the system clock timing requirements.

Part Context

This component is part of Nexperia's extensive 74HC logic portfolio, designed for general-purpose digital applications. The 74HC73 specifically implements the classic JK flip-flop functionality in modern surface-mount technology. It serves as a fundamental building block for sequential logic design, offering reliable performance in consumer electronics, industrial automation, and telecommunications infrastructure.

Replacement Considerations

Direct pin-compatible substitutes include other manufacturers' 74HC73 variants in SSOP-14 packages. Cross-reference specifications for propagation delay and output drive current to ensure functional equivalence. Verify that alternative sources maintain the same voltage range and temperature ratings for seamless integration.