SN74HC374DB

Flip Flops Overview

The SN74HC374DB is an octal edge-triggered D-type flip-flop manufactured by Texas Instruments. It features eight independent D-type flip-flops with three-state outputs, housed in a 20-pin SSOP package. The device operates within a supply voltage range of 2 V to 6 V and supports a maximum clock frequency of 40 MHz. Typical propagation delay is 19 ns at 5 V. Output drive capability includes ±6 mA at 5 V, allowing it to drive up to 15 LSTTL loads. Static current is typically 8 µA.

Flip Flops Feature Summary

• Octal configuration with eight independent positive-edge triggered D-type flip-flops
• Three-state outputs enable direct bus system interfacing without additional drivers
• High-impedance state prevents excessive loading on bus lines during inactive periods
• CMOS input structure ensures low static power consumption

Flip Flops Applications

• Buffer registers for data storage and isolation
• I/O port implementations in embedded systems
• Bidirectional bus driver circuits
• Working registers in digital logic designs

Flip Flops Procurement Notes

Verify the specific suffix 'DB' corresponds to the SSOP-20 surface-mount package variant rather than the PDIP-20 through-hole version (SN74HC374N). Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering code matches the exact manufacturer part number to avoid pinout or electrical specification mismatches.

Flip Flops Selection Notes

Select this component when an octal register with tri-state output control is required for bus-oriented architectures. The HC series offers standard CMOS speed and voltage compatibility. Consider the HCT series if TTL-level input thresholds are necessary for interfacing with legacy logic families. Verify that the SSOP package size fits the available PCB footprint constraints.

Flip Flops Part Context

This part belongs to the SN74HC374 family of octal D-type flip-flops. It is functionally compatible with other industry-standard octal latches but specifically utilizes high-speed CMOS technology. The DB suffix denotes the plastic small-outline package, distinguishing it from other packaging options like N (PDIP) or R (T/R).

Flip Flops Replacement Considerations

Direct functional substitutes include SN74HCT374 variants for TTL-compatible inputs and SN74AHC374 for higher speed performance. Cross-reference pinouts and electrical characteristics carefully before substitution.