CD74HCT574QPWRQ1

Overview

The CD74HCT574QPWRQ1 is an automotive-grade octal edge-triggered D-type flip-flop manufactured by Texas Instruments. It features eight independent D-type flip-flops with three-state outputs, designed for bus-driven applications. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 20-TSSOP package. It exhibits a maximum propagation delay of 33 ns at 4.5 V with 50 pF load and maintains a static current consumption of 8 µA. The component is qualified for automotive environments, functioning reliably between -55°C and +125°C.

Feature Summary

• Automotive qualification ensuring reliability in vehicle electronic systems
• Octal configuration providing eight independent data storage elements per unit
• Three-state outputs enabling direct connection to bus-oriented architectures
• CMOS technology delivering low power consumption with high noise immunity

Applications

• Buffer registers in automotive control units
• I/O port expansion for vehicle communication interfaces
• Bidirectional bus drivers for internal system connectivity
• Working registers within engine management systems

Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status through official Texas Instruments documentation. Confirm the 'PWR' designation corresponds to the 20-TSSOP surface-mount package variant. Ensure compatibility with 4.5 V to 5.5 V logic levels before integration into target circuit designs.

Selection Notes

Select this component when designing automotive logic circuits requiring octal storage with bus-compatible outputs. It is suitable for applications needing low static power consumption and wide operating temperature ranges. Consider the 33 ns propagation delay for timing constraints in high-speed automotive data buses.

Part Context

This part belongs to the SN74HCT574 family, which provides octal edge-triggered D-type flip-flops with three-state outputs. The HCT series ensures TTL-compatible input thresholds while utilizing CMOS output structures. The Q1 suffix indicates automotive grade qualification, distinguishing it from standard commercial variants like the CD74HCT574PWR.

Replacement Considerations

SN74HCT574QPWRQ1