DS3486M/NOPB

Overview

The DS3486M/NOPB is an RS-422 interface integrated circuit manufactured by Texas Instruments, functioning as a quad receiver. It operates within a supply voltage range of 4.75 V to 5.25 V, with a typical operating voltage of 5 V. The device supports data rates up to 10 Mb/s and features four receivers in a single package. It is housed in a 16-SOIC (Narrow) surface-mount package. The component is rated for operation between 0°C and +70°C. Power consumption is characterized by a maximum operating supply current of 85 mA. The part is identified as obsolete and no longer in production.

Feature Summary

• Provides four differential receivers compliant with RS-422 standards for balanced transmission line applications.
• Utilizes a narrow 16-pin SOIC surface-mount package suitable for space-constrained PCB layouts.
• Operates on a standard 5 V power supply with defined limits for industrial reliability.

Applications

• Balanced digital communication systems requiring multi-drop receiver configurations.
• Industrial control networks utilizing RS-422 protocol for noise-immune data transfer.
• Telecommunications equipment interfacing with differential signal lines.

Procurement Notes

This component is officially classified as obsolete and has been discontinued by the manufacturer. Availability is restricted to existing stock from distributors or secondary market sources. Verification of authenticity and lot traceability is critical when sourcing from non-direct channels. Designers should initiate replacement strategies immediately due to the lack of future manufacturing support. Supply chain stability cannot be guaranteed through standard procurement channels.

Selection Notes

Engineers selecting this part must account for its discontinued status and plan for long-term supply risks. The DS3486 series offers quad RS-422 reception, but newer alternatives may provide enhanced performance or availability. Compatibility checks are required if substituting with other quad receiver ICs, ensuring pinout and electrical specifications match the original design constraints. Reviewing official obsolescence notifications helps anticipate end-of-life timelines.

Part Context

The DS3486M/NOPB belongs to the DS3486 family of RS-422 interface devices from Texas Instruments. This family includes variants such as transceivers and drivers, with the DS3486 specifically designated as a receiver-only unit. The 'M' suffix indicates the narrow SOIC package, while '/NOPB' denotes lead-free and RoHS compliance. It serves as a counterpart to driver components like the DS3487 in complete bus architectures.

Replacement Considerations

Publicly confirmed substitute part numbers include SN75175NSR, DS3486M/NOPB (existing stock), and DS3486MX/NOPB. These alternatives offer similar RS-422 quad receiver functionality. Engineers should verify pin compatibility and electrical parameters before implementation.