SN74HC374NSR

Flip Flops Overview

The SN74HC374NSR is an octal edge-triggered D-type flip-flop with three-state outputs manufactured by Texas Instruments. It belongs to the HC logic series and features a 20-pin SOIC package for surface-mount applications. The device operates within a supply voltage range of 2 V to 6 V, supporting standard CMOS input levels. Key electrical parameters include a maximum propagation delay of 230 ns at 2 V and output drive currents of ±7.8 mA. It is designed for high-capacitance or low-impedance loads, offering non-inverting logic polarity and eight independent circuits per package.

Flip Flops Feature Summary

• Octal configuration providing eight independent edge-triggered D-type flip-flops in a single package
• Three-state outputs allowing direct bus-oriented connections without additional interface components
• High-current drive capability suitable for driving high capacitive or low impedance loads
• CMOS compatible inputs with low static power consumption characteristics

Flip Flops Applications

• Buffer registers for data storage and transfer
• I/O port interfaces in embedded systems
• Bidirectional bus drivers for data communication lines
• Working registers in digital processing circuits

Flip Flops Procurement Notes

Verify that the ordering suffix NSR specifically denotes the tape-and-reel packaging format required for automated surface-mount assembly processes. Confirm the manufacturer is Texas Instruments to ensure compliance with the official SN74HC374 datasheet specifications. Check RoHS compliance status if environmental regulations apply to the final product assembly. Ensure the SOIC-20 footprint matches the PCB design constraints.

Flip Flops Selection Notes

Select this component when an octal register with tri-state control is required for bus-based architectures. The HC series offers compatibility with standard 5V and lower voltage logic families. Consider the 20-pin SOIC package size for space-constrained surface-mount designs. Evaluate the propagation delay and output current requirements against the load capacitance to ensure signal integrity at the target operating frequency.

Flip Flops Part Context

This part is a member of the Texas Instruments SN74HC374 family of octal D-type flip-flops. It shares functional similarities with other variants such as SN74HC374N (PDIP) and SN74HC374DWR (SOIC), differing primarily in package type and reel configuration. The SN74HC374NSR is optimized for high-volume surface-mount production lines compared to through-hole alternatives.

Flip Flops Replacement Considerations

Direct substitutes include SN74HC374DR and SN74HC374DWR, which share the same SOIC-20 package and electrical characteristics but may differ in reel quantity or specific manufacturing lot details. Cross-reference with SN74HC374N only if through-hole mounting is acceptable.