9517A-4DM/B

Overview

The AM9517A-4DM/B is a high-speed CMOS quad differential line driver manufactured by Rochester Electronics. It is designed for RS-422 and RS-485 communication applications, providing balanced transmission capabilities over twisted-pair cables. The device features four independent drivers with enable controls, ensuring reliable data transfer in noisy industrial environments. It operates within standard voltage ranges and supports high data rates suitable for multi-drop bus configurations.

Feature Summary

• Provides four independent differential line drivers for balanced transmission
• Designed specifically for RS-422 and RS-485 communication standards
• Features individual enable controls for each driver channel
• Utilizes CMOS technology for low power consumption and high noise immunity

Applications

• RS-422 balanced digital interface circuits
• RS-485 multi-point communication systems
• Industrial automation control networks
• Data acquisition systems requiring long-distance transmission

Procurement Notes

Verify the specific suffix 'DM/B' against the manufacturer's official documentation to confirm package type and material composition. Ensure the component matches the required pinout and electrical specifications for your design. Cross-reference the date code and lot number with available traceability records if required for quality assurance purposes.

Selection Notes

Select this component when designing systems that require robust differential signaling for noise immunity. It is suitable for applications needing multiple transmitter channels on a single package. Consider the operating temperature range and supply voltage requirements to ensure compatibility with the target system environment.

Part Context

Rochester Electronics specializes in sourcing and manufacturing legacy and obsolete semiconductor components. The AM9517A series originates from AMD, and Rochester provides these parts through licensed manufacturing or inventory sources. This ensures availability for existing designs that rely on established industry-standard interface controllers.

Replacement Considerations

Direct replacements include other AM9517A variants with compatible suffixes such as -4DC or -5JC, provided the package and speed grade match. Verify pin compatibility before substitution. Generic equivalents may exist but require careful validation of electrical parameters and timing characteristics.