MM74HCT574SJX

Flip Flops Overview

The MM74HCT574SJX is an octal D-type flip-flop manufactured by onsemi, belonging to the 74HCT logic series. It features eight positive-edge-triggered D flip-flops with three-state outputs in a 20-SOIC package. The device operates within a supply voltage range of 4.5V to 5.5V. Key electrical parameters include a maximum propagation delay of 30ns at 5V with 50pF load, a clock frequency of 33MHz, and static current consumption of 8µA. Output drive capabilities are specified as 7.2mA for both high and low states.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single integrated circuit
• Three-state outputs allowing direct connection to bus-oriented systems without external drivers
• CMOS construction ensuring high noise immunity and compatibility with TTL-driven interfaces

Flip Flops Applications

• Register files in digital data processing systems
• Shift registers for serial-to-parallel data conversion
• Bus-oriented memory structures requiring tri-state isolation

Flip Flops Procurement Notes

Verify the specific suffix 'SJX' against official onsemi documentation to confirm package dimensions and tape-and-reel specifications. Ensure the design supports the 4.5V minimum supply requirement for HCT logic compatibility. Confirm that the 20-SOIC footprint matches the target PCB layout constraints before finalizing procurement orders.

Flip Flops Selection Notes

Select this component when designing systems requiring eight synchronized storage elements with bus-compatible outputs. The HCT series ensures compatibility with standard 5V logic families, making it suitable for legacy interface integration. Consider the 30ns propagation delay for timing analysis in moderate-speed digital circuits operating at 33MHz.

Flip Flops Part Context

This part belongs to the MM74HCT574 family of octal D-type flip-flops. It shares functional similarities with other 74HCT574 variants but differs in packaging and manufacturing lot specifics. The SJX designation typically indicates a specific reel or tape configuration for surface-mount assembly processes.

Flip Flops Replacement Considerations

Direct substitutes include MM74HCT574MTC and MM74HCT574WMX from onsemi, which offer identical logical functionality. Verify pinout compatibility and package dimensions (SOIC vs TSSOP) when substituting to ensure mechanical fit.