SN74LS377DWR

Flip Flops Overview

The SN74LS377DWR is an octal D-type flip-flop from the Texas Instruments 74LS series, housed in a 20-SOIC surface-mount package. It features positive-edge triggering and non-inverting outputs with a clock enable function. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum clock frequency of 40 MHz. Key electrical parameters include a propagation delay of 27 ns at 5 V with 15 pF load, low-level output current of 8 mA, high-level output current of -400 µA, and static current of 28 mA. It functions across a temperature range of 0°C to +70°C.

Flip Flops Feature Summary

• Octal D-type flip-flop architecture with eight independent storage elements
• Positive-edge triggering mechanism synchronized with clock input
• Clock enable control for selective data latching operations
• Non-inverting output configuration compatible with TTL logic levels

Flip Flops Applications

• Digital memory storage systems requiring parallel data retention
• Counter circuits utilizing sequential state updates
• Register files for temporary data buffering in processing units
• Logic control interfaces managing signal synchronization

Flip Flops Procurement Notes

Verify the specific ordering suffix corresponds to the SOIC-20 surface-mount package variant. Confirm RoHS compliance status and moisture sensitivity level classification prior to integration. Ensure the supplier provides official datasheet documentation matching the SN74LS377DWR part number to guarantee parameter accuracy. Cross-reference manufacturing site information if assembly origin impacts qualification requirements.

Flip Flops Selection Notes

Select this component when an octal D-type flip-flop with clock enable functionality is required in a surface-mount design. The 74LS series ensures compatibility with standard TTL logic families. Consider the 27 ns propagation delay and 40 MHz maximum frequency limits against system timing constraints. Verify that the 0°C to +70°C operating temperature range meets environmental specifications for the intended application environment.

Flip Flops Part Context

The SN74LS377DWR belongs to the SN74LS377 family of octal D-type flip-flops manufactured by Texas Instruments. It shares functional characteristics with other variants such as SN74LS377N and SN74LS377NSR, differing primarily in packaging technology. The DWR suffix specifically denotes the SOIC-20 surface-mount form factor, distinguishing it from through-hole or tape-and-reel variations within the same logical product line.

Flip Flops Replacement Considerations

SN74LS377NSR: Surface-mount SOIC-20 variant with identical logical function.

Flip Flops FAQ

What is the trigger type of the SN74LS377DWR?

The device utilizes positive-edge triggering for data latching.

Does the SN74LS377DWR have tri-state outputs?

No, the SN74LS377DWR features non-inverting outputs without tri-state capability.