MC74ACT574MELG

Flip Flops Overview

The MC74ACT574MELG is an octal D-type flip-flop manufactured by onsemi using high-speed CMOS technology. It features eight positive-edge-triggered D flip-flops with common clock and output enable inputs. The device provides three-state outputs capable of sourcing or sinking 24 mA, facilitating direct interface with microprocessors and bus-oriented applications. It operates within a supply voltage range of 4.5 V to 5.5 V, with a typical propagation delay of 11 ns at 5 V. The component is housed in a 20-pin SOIC-J package and supports industrial temperature ranges from -40°C to +85°C.

Flip Flops Feature Summary

• Octal D-type flip-flop architecture with positive-edge triggering
• Three-state outputs for efficient bus-oriented system integration
• High current drive capability supporting 24 mA source and sink currents
• TTL-compatible inputs ensuring broad logic family interoperability

Flip Flops Applications

• Direct interface with microprocessor data buses
• Input and output port buffering in digital systems
• Bus-oriented memory and I/O mapping circuits
• Parallel data storage and latching operations

Flip Flops Procurement Notes

Verify the specific suffix 'MELG' against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the procurement channel sources genuine onsemi components to guarantee electrical performance specifications. Check for RoHS compliance documentation if environmental regulations apply to the target assembly. Confirm availability status as this part number may have limited production runs compared to standard variants.

Flip Flops Selection Notes

Select this component when high-speed data latching with strong drive capability is required for 5V logic systems. The ACT series offers faster switching speeds than standard AC counterparts while maintaining TTL input thresholds. Consider the 20-SOIC-J package geometry for PCB layout constraints. Evaluate the 24 mA output current against load requirements to ensure signal integrity without external buffering.

Flip Flops Part Context

This device belongs to the 74ACT logic family, designed for high-speed applications requiring low power consumption. It is functionally similar to the MC74AC374 but differs in pin configuration to optimize board layout for microprocessor interfaces. The MC74ACT574MELG represents a specialized variant within the octal flip-flop category, emphasizing ease of use in complex digital architectures.

Flip Flops Replacement Considerations

Publicly confirmed substitute part numbers include MC74ACT574MEL. Designers should verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Alternative logic families such as HC or AC series may require voltage level adjustments or speed trade-offs.