DS3486N/NOPB

Overview

The DS3486N/NOPB is a quad RS-422 and RS-423 line receiver manufactured by Texas Instruments. It features four independent receivers with TRI-STATE outputs that are compatible with 74LS logic. The device operates on a single 5V supply, with a voltage range of 4.75V to 5.25V. It supports data rates up to 10 Mb/s and includes internal hysteresis for improved noise margin. The typical propagation delay is 19 ns, and the maximum power supply current is 85 mA. It is housed in a 16-pin PDIP package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Four independent differential-input line receivers with TTL-compatible outputs
• TRI-STATE output structures allowing high-impedance states when control pins are low
• Internal hysteresis circuitry designed to improve noise margins and prevent instability
• Pin-compatible and interchangeable with MC3486 devices

Applications

• Balanced/unbalanced voltage digital interface circuits compliant with EIA standards
• Industrial communication systems requiring robust signal reception
• Data transmission lines utilizing RS-422 or RS-423 protocols

Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance during procurement. Confirm the package type matches the required PCB footprint, as this part number specifies the PDIP variant. Ensure the ordering documentation explicitly references the DS3486N/NOPB designation to avoid confusion with other packaging options like SOIC.

Selection Notes

Select the DS3486N/NOPB when a through-hole solution is required for RS-422/RS-423 applications. This component serves as a direct replacement for the MC3486 in designs needing pin compatibility. Consider the 85 mA supply current and 16-pin DIP form factor when evaluating board space and power budget constraints relative to surface-mount alternatives.

Part Context

This component belongs to the DS3486 family of quad line receivers from Texas Instruments. It is derived from National Semiconductor technology now integrated into TI's portfolio. The device is specifically engineered to meet ANSI TIA/EIA-422-B and TIA/EIA-423-B standards, providing a reliable interface solution for legacy and industrial serial communication architectures.

Replacement Considerations

The MC3486 is a confirmed pin-compatible and functionally interchangeable substitute. Designers should verify that any replacement maintains the same PDIP-16 package configuration and electrical characteristics to ensure seamless integration without schematic modifications.