DS3487N/NOPB

Overview

The DS3487N/NOPB is a quad TRI-STATE line driver compliant with EIA RS-422 standards. It features four independent drivers in a 16-pin PDIP package. The device operates on a 5V supply voltage ranging from 4.75V to 5.25V, with an active power supply current of 50mA typical and 80mA maximum. Propagation delays are typically 10ns, with output rise and fall times under 15ns. It functions within a temperature range of 0°C to +70°C.

Feature Summary

• Four independent TRI-STATE outputs for balanced voltage digital interface circuits
• TTL compatible inputs with PNP buffering to minimize loading
• Fast propagation times and output transition speeds

Applications

• Balanced voltage digital interface circuits
• RS-422 communication systems
• Industrial control networks

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and environmental compliance. Ensure the component status aligns with current design requirements, as availability may vary based on production lifecycle stages. Cross-reference datasheet revisions to validate electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing RS-422 interfaces requiring four independent drivers with TRI-STATE capability. Verify that the operating environment stays within the specified 0°C to +70°C temperature range. Confirm that the 5V supply voltage matches the system power architecture and that TTL-compatible input logic levels are supported by the driving circuitry.

Part Context

This part belongs to the DS3487 family of quad line drivers manufactured by Texas Instruments. It serves as a pin-compatible alternative to legacy components like the MC3487 and DS8924. The device provides robust signal transmission for RS-422 applications while maintaining compatibility with standard TTL logic families.

Replacement Considerations

The DS3487N/NOPB is pin-compatible with the MC3487 and DS8924. Designers replacing these parts should verify that the replacement meets all RS-422 electrical specifications and maintains the required TRI-STATE functionality for the specific application bus topology.