SN74F574DWR

Flip Flops Overview

The SN74F574DWR is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments, belonging to the high-speed 74F logic series. It features eight independent D-type flip-flops with three-state outputs in a 20-SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum clock frequency of 100 MHz. Key electrical parameters include a propagation delay of 8.5 ns at 5 V with 50 pF load, a high-level output current of -3 mA, and a low-level output current of 24 mA. It functions with non-inverting polarity and TTL input types across an operating temperature range of 0°C to +70°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type edge-triggered flip-flops for parallel data storage.
• Three-state outputs enable direct bus driving connections without additional interface hardware.
• High-speed 74F logic series performance supporting clock frequencies up to 100 MHz.
• Non-inverting polarity ensures output states match input data states upon clock triggering.

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Register files in microprocessor-based systems
• Shift register implementations
• Buffering digital signals on system buses

Flip Flops Procurement Notes

Verify component authenticity through authorized distribution channels to ensure compliance with RoHS3 standards and REACH regulations. Confirm that the specific ordering suffix corresponds to the required tape-and-reel packaging format for surface-mount assembly processes. Cross-reference the manufacturer part number against official datasheets to validate pinout compatibility and electrical specifications before integration into final designs.

Flip Flops Selection Notes

Select this component when high switching speed is critical for the application, as the 74F series offers faster propagation delays compared to standard or HC variants. Ensure the design accommodates the specific output drive capabilities, particularly the asymmetrical current ratings between high and low states. Verify that the power supply remains strictly within the 4.5 V to 5.5 V range to maintain signal integrity and prevent device malfunction during operation.

Flip Flops Part Context

This device is part of the broader SN74F574 family, which includes variations such as the SN74F574DW and SN74AS574DWR. While sharing functional similarities, differences exist in propagation delay characteristics and power consumption profiles across the F and AS sub-series. The SOIC-20 package provides a standardized footprint compatible with various automated pick-and-place manufacturing equipment used in modern electronics production lines.

Flip Flops Replacement Considerations

SN74AS574DWR offers similar functionality with potentially different speed and power characteristics within the same package.

Flip Flops FAQ

What is the maximum operating frequency of the SN74F574DWR?

The device supports a maximum clock frequency of 100 MHz under specified test conditions.

Does the SN74F574DWR have inverted outputs?

No, the device features non-inverting polarity, meaning the output state directly reflects the input data state.