SN74HCT574NSR

Flip Flops Overview

The SN74HCT574NSR is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments, featuring three-state outputs for efficient bus driving. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 20-SOIC surface-mount package. The device exhibits a maximum propagation delay of 47 ns at 5.5 V with 150 pF load, supporting clock frequencies up to 40 MHz. Output drive capability provides ±6 mA current, while static power consumption remains low at 8 µA. Designed for industrial applications, it functions reliably across temperatures from -40°C to +85°C.

Flip Flops Feature Summary

• Octal configuration with positive-edge triggering for simultaneous data capture
• Three-state non-inverting outputs enable direct bus line interfacing
• TTL-compatible input thresholds ensure seamless integration with legacy logic systems

Flip Flops Applications

• Buffer register implementations
• I/O port interface circuits
• Bidirectional bus driver designs
• Working register architectures

Flip Flops Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm exact packaging and environmental compliance status. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference RoHS directives and REACH regulations with current regulatory standards before finalizing procurement orders to maintain supply chain compliance.

Flip Flops Selection Notes

Select this component when designing systems requiring eight-bit parallel data storage with high-speed bus interfacing capabilities. The HCT series compatibility allows direct connection to TTL-driven sources without additional level shifting circuitry. Consider the 20-SOIC footprint constraints and thermal dissipation requirements during the initial schematic capture phase to ensure optimal board space utilization and reliable long-term operation under specified electrical loads.

Flip Flops Part Context

This part belongs to the standard 74HCT logic family, which bridges CMOS technology with TTL input specifications. The SN74HCT574 serves as a fundamental building block for sequential logic circuits in digital electronics. Its widespread adoption stems from its robust performance characteristics and compatibility with established design methodologies used in consumer and industrial electronic equipment manufacturing.

Flip Flops Replacement Considerations

SN74AHCT574NSR offers faster switching speeds but requires careful attention to voltage levels. SN74F574NSR provides higher speed at the cost of increased power consumption. SN74LVTH574NSR supports lower voltage operations suitable for modern low-power designs.