SN75477P

Buffers, Drivers, Receivers, Transceivers Overview

The SN75477P is a dual peripheral driver manufactured by Texas Instruments, designed for systems requiring high current and voltage handling. It features two non-inverting input lines driving corresponding outputs with a low-level output current capability of 300 mA. The device operates within a supply voltage range of 4.5 V to 5.5 V and draws a typical operating power supply current of 54 mA. It exhibits a propagation delay time of 350 ns and supports a maximum power dissipation of 1 W. The component is housed in an 8-pin PDIP package and functions reliably across an operating temperature range from 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual peripheral driver architecture providing independent control for two channels
• High current sink capability suitable for driving heavy loads such as relays or lamps
• Non-inverting logic configuration for direct signal transmission

Buffers, Drivers, Receivers, Transceivers Applications

• Driving relay coils in industrial control panels
• Actuating incandescent lamps or indicator lights
• Powering solenoid valves in automation systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'P' confirms the PDIP-8 through-hole package variant. Confirm RoHS compliance status via the manufacturer's latest documentation. Ensure the operating environment remains within the specified 0°C to +70°C thermal limits to maintain performance integrity. Cross-reference the datasheet revision date to ensure alignment with current manufacturing standards.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual-channel solution is required for moderate-speed switching applications. The 300 mA output current rating distinguishes it from standard logic buffers. Consider the PDIP-8 package for prototyping or through-hole PCB designs where surface mount options are not feasible. Evaluate the 350 ns propagation delay against system timing requirements to ensure adequate response speeds.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN7547x series of dual peripheral drivers from Texas Instruments. It shares functional similarities with the SN75476 and SN75478, differing primarily in packaging and minor electrical characteristics. The series is engineered for general-purpose high-current switching tasks in digital logic environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN75477D serves as a surface-mount alternative offering identical electrical functionality in an SOIC-8 package. Verify pinout compatibility before substitution. Other variants in the SN7547x family may require evaluation of specific current ratings and package constraints.