SN74LS377N

Flip Flops Overview

The SN74LS377N is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the SN74LS logic series. It features eight independent positive-edge-triggered D flip-flops with non-inverting outputs in a single package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports through-hole mounting in a 20-pin PDIP package. Key electrical parameters include a maximum propagation delay of 27 ns at 5 V with 15 pF load, high-level output current of -400 µA, and low-level output current of 8 mA. It functions reliably across an operating temperature range of 0°C to +70°C.

Flip Flops Feature Summary

• Contains eight independent positive-edge-triggered D-type flip-flops for parallel data storage
• Provides non-inverting outputs directly reflecting input states upon clock activation
• Compatible with standard TTL logic families for seamless system integration

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Register stages in digital counting systems
• Memory buffer applications in microprocessor interfaces

Flip Flops Procurement Notes

Verify the manufacturer part number SN74LS377N against official Texas Instruments documentation to ensure authenticity. Confirm that the component matches the specified 20-pin PDIP package and LS logic family characteristics. Check RoHS compliance status as indicated in the product specifications. Ensure the supplier provides valid traceability documents consistent with the original manufacturer's records.

Flip Flops Selection Notes

Select this component when designing systems requiring octal storage with non-inverting outputs using standard TTL levels. Consider the 27 ns propagation delay and 8 mA sink capability for timing and drive requirements. Verify that the 0°C to +70°C operating range meets environmental constraints. Compare against other 74LS series devices if different trigger types or output configurations are needed.

Flip Flops Part Context

This component is part of the widely used SN74LS series of logic integrated circuits produced by Texas Instruments. The SN74LS377 specifically serves as an octal flip-flop, distinguishing itself from latches like the SN74LS373 by utilizing edge-triggering rather than level-sensitive transparency. It complements other 74LS family members such as buffers and gates in complex digital logic designs.

Flip Flops FAQ

Is the SN74LS377N a latch or a flip-flop?

It is a positive-edge-triggered D-type flip-flop, not a transparent latch.

What is the output configuration of the SN74LS377N?

It features non-inverting outputs corresponding to each of the eight D inputs.