SN74LS74AMEL

Flip Flops Overview

The SN74LS74AMEL is a dual D-type positive edge-triggered flip-flop manufactured by ON Semiconductor. It utilizes Low Power Schottky (LPS) TTL circuitry to achieve high-speed operation with reduced power consumption. The device features individual asynchronous preset and clear inputs, allowing direct control of the output states independent of the clock signal. Complementary Q and Q-bar outputs are provided for each flip-flop. The 'A' suffix indicates an improved version with enhanced switching characteristics, while the 'MEL' package designation corresponds to a specific ceramic or plastic surface-mount configuration suitable for commercial temperature ranges.

Flip Flops Feature Summary

• Dual independent D-type flip-flops with positive edge triggering
• Asynchronous preset and clear inputs for direct state control
• Low Power Schottky TTL technology for high speed and low power
• Complementary Q and Q-bar outputs available

Flip Flops Applications

• Data storage and register circuits
• Shift registers in digital systems
• Frequency division and counting applications
• State machines and sequential logic control

Flip Flops Procurement Notes

Verify the exact package type associated with the 'MEL' suffix against the manufacturer's current datasheet, as packaging designations can vary between ceramic and plastic variants. Confirm that the 'A' suffix denotes the specific improved electrical characteristics required for your timing constraints. Ensure compatibility with standard 5V TTL logic levels if interfacing with other LS series components.

Flip Flops Selection Notes

Select this component when dual D-type flip-flops are required in a compact form factor with low power dissipation needs. The LPS technology offers a balance between speed and power efficiency compared to standard LS series. Consider the availability of the specific MEL package variant for your PCB layout requirements and ensure the operating temperature range meets your application's environmental specifications.

Flip Flops Part Context

The SN74LS74 belongs to the widely used 74LS family of digital logic ICs, known for their compatibility with standard TTL voltage levels. This specific part represents a dual flip-flop configuration, essential for building sequential logic circuits. The 'A' variant typically offers improved noise margins and switching speeds over earlier versions, making it suitable for more demanding digital applications within the commercial temperature range.

Flip Flops Replacement Considerations

Compatible substitutes include SN74LS74N, SN74LS74D, and MC74LS74 from various manufacturers. Ensure the replacement maintains the same dual D-type flip-flop functionality and LPS TTL characteristics. Verify pinout compatibility and package dimensions before substitution.