CD74AC574M

Overview

The CD74AC574M is an octal D-type flip-flop from the Texas Instruments AC logic family, housed in a 20-pin SOIC package. It features non-inverting outputs with three-state capability and CMOS inputs. The device operates on a supply voltage range of 2 V to 6 V, supporting a maximum clock frequency of 153 MHz. Key electrical parameters include a propagation delay of 13.5 ns at 5 V, output currents of ±24 mA, and a static current of 4 µA. It functions within a temperature range of -55°C to +125°C.

Feature Summary

• Octal D-type edge-triggered flip-flop architecture with eight independent circuits
• Three-state outputs for bus-oriented system design
• CMOS input structure ensuring low static power consumption
• Wide operating voltage range supporting 2 V to 6 V applications

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory register implementations
• High-speed digital signal processing interfaces
• General-purpose storage elements in microprocessor systems

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure component authenticity. Confirm that the package type matches the required SOIC-20 form factor for your PCB layout. Check RoHS compliance status through the manufacturer's environmental files. Ensure the operating temperature range meets your application's thermal requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring octal storage with high-speed performance and wide voltage flexibility. The AC series offers faster switching speeds compared to standard HC logic while maintaining low power consumption. Consider the three-state output feature if bus sharing is necessary. Verify that the 20-pin SOIC package fits your assembly constraints and that the -55°C to +125°C temperature range aligns with your operational environment.

Part Context

The CD74AC574M belongs to the SN54/74AC574 family of octal D-type flip-flops manufactured by Texas Instruments. This series is part of the broader AC logic family, known for combining high-speed operation with low power dissipation. The device serves as a fundamental building block for sequential logic circuits, providing reliable data storage and transfer capabilities in various digital electronic systems.

Replacement Considerations

SN74AC574DWR

FAQ

What is the maximum clock frequency for the CD74AC574M?

The maximum clock frequency is 153 MHz.

Does the CD74AC574M have inverting or non-inverting outputs?

The CD74AC574M features non-inverting outputs.