SN74HCT374NS

Flip Flops Overview

The SN74HCT374NS is an octal D-type edge-triggered flip-flop manufactured by Texas Instruments. It features eight independent D-type flip-flops with positive-edge triggering and three-state outputs. The device operates within a supply voltage range of 2V to 6V, with typical propagation delay of 230ns at 5V. Output drive capability includes -7.8mA high-level and 7.8mA low-level currents. It is housed in a 20-pin SOIC package.

Flip Flops Feature Summary

• Octal configuration with eight independent D-type flip-flops for parallel data storage
• Positive-edge triggered clocking mechanism ensures precise data capture
• Three-state outputs allow direct connection to bus systems without additional drivers
• CMOS input structure provides high noise immunity and low static power consumption

Flip Flops Applications

• Buffer registers for temporary data storage in digital systems
• I/O port interfaces for connecting microcontrollers to peripheral devices
• Bidirectional bus drivers for managing data flow on shared communication lines
• Working registers within arithmetic logic units or control circuits

Flip Flops Procurement Notes

Verify the exact suffix 'NS' against the manufacturer's current ordering information, as standard datasheets often list 'N' (PDIP) or 'DWR' (SOIC-20). Confirm that the specific package variant matches your PCB footprint requirements. Check RoHS compliance status and lead times directly with authorized distributors, as availability varies by region and production batch.

Flip Flops Selection Notes

Select this component when an octal register with three-state output is required for bus interfacing. Ensure the system voltage falls within the 2V to 6V operating range. Consider the 230ns propagation delay if timing constraints are critical. Compare with HC series for lower cost or HCT series for TTL compatibility if input thresholds differ from CMOS standards.

Flip Flops Part Context

This part belongs to the Texas Instruments 74HCT logic family, which combines CMOS speed with TTL-compatible input thresholds. The 374 designation indicates an octal D-type flip-flop. The NS suffix typically denotes a specific surface-mount or through-hole variant depending on the manufacturer's coding scheme, distinguishing it from other packages like DIP or TSSOP.

Flip Flops FAQ

What is the trigger type of the SN74HCT374NS?

The device uses positive-edge triggering, meaning data is captured on the rising edge of the clock signal.

Can the outputs be placed in a high-impedance state?

Yes, the three-state output enable (OE) input allows all outputs to enter a high-impedance state, disconnecting them from the bus.