DS3486MX/NOPB Equivalent & Substitute Parts

Part Overview

The DS3486MX/NOPB is a 0/4 Receiver IC for RS422 and RS423 serial communication protocols, manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is currently in active product status with 1501 units in stock. Substitute parts become necessary when addressing supply constraints, end-of-life transitions, or specific application requirements that align with compatible electrical and mechanical specifications.

Key Parameters

Parameter	DS3486MX/NOPB
Manufacturer	Texas Instruments
Type	Receiver
Protocol	RS422, RS423
Number of Drivers/Receivers	0/4
Receiver Hysteresis	140 mV
Voltage - Supply	4.75V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DS3486MX/NOPB is determined by the following critical parameters:

Mandatory Matching Parameters:

Package / Case: 16-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Number of Drivers/Receivers: 0/4
Voltage - Supply: 4.75V ~ 5.25V
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Compatible Protocol Variations: Parts supporting RS422 and RS423 protocols are directly substitutable. Parts supporting RS422, RS423, and RS485 are functionally compatible, as RS485 capability represents an extended feature set that does not compromise RS422/RS423 operation.

Operating Temperature Considerations: The DS3486MX/NOPB operates from 0°C to 70°C. Substitute parts with extended temperature ranges (-40°C to 85°C) are electrically compatible but represent different thermal specifications.

Receiver Hysteresis Variations: The DS3486MX/NOPB specifies 140 mV receiver hysteresis. Substitute parts with 50 mV hysteresis represent a tighter input threshold specification and remain functionally compatible.

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Receiver Hysteresis	Operating Temperature	Packaging	Inventory
DS3486MX/NOPB	Texas Instruments	Active	RS422, RS423	140 mV	0°C ~ 70°C	Cut Tape (CT) & Digi-Reel®	1501 Pcs
MC3486D	Texas Instruments	Last Time Buy	RS422, RS423	—	0°C ~ 70°C	Tube	1245 Pcs
MC3486DR	Texas Instruments	Active	RS422, RS423	—	0°C ~ 70°C	Cut Tape (CT) & Digi-Reel®	83969 Pcs
SN65175DR	Texas Instruments	Obsolete	RS422, RS423, RS485	50 mV	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	3715 Pcs
SN75175D	Texas Instruments	Last Time Buy	RS422, RS423, RS485	50 mV	0°C ~ 70°C	Tube	2100 Pcs
SN75175DR	Texas Instruments	Active	RS422, RS423, RS485	50 mV	0°C ~ 70°C	Cut Tape (CT) & Digi-Reel®	30100 Pcs
SN65175D	Texas Instruments	Obsolete	RS422, RS423, RS485	50 mV	-40°C ~ 85°C	Tube	1900 Pcs
SN75ALS199D	Texas Instruments	Obsolete	—	120 mV	0°C ~ 70°C	—	776 Pcs

Engineering Selection Recommendations

Primary Substitutes (Active Status): MC3486DR and SN75175DR are the preferred substitutes, both maintaining Active product status. MC3486DR provides direct protocol compatibility (RS422, RS423) with matching operating temperature range. SN75175DR extends protocol support to include RS485 while maintaining the 0°C to 70°C operating window, offering functional compatibility with enhanced capability.

Secondary Substitutes (Last Time Buy Status): MC3486D and SN75175D remain available but are designated Last Time Buy, indicating limited future availability. These parts maintain full electrical and mechanical compatibility but should be evaluated only when primary substitutes are unavailable.

Obsolete Parts (Not Recommended for New Designs): SN65175DR, SN65175D, and SN75ALS199D carry Obsolete product status. While electrically compatible, these parts should not be selected for new designs or long-term production requirements due to discontinued manufacturer support.

Compliance Verification: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility with the DS3486MX/NOPB.

Frequently Asked Questions (FAQ)

Q: Can MC3486DR replace DS3486MX/NOPB directly? A: Yes. MC3486DR matches all mandatory parameters: 16-SOIC package, surface mount, 0/4 receiver configuration, 4.75V to 5.25V supply, ROHS3 compliance, and MSL 1 rating. Both support RS422 and RS423 protocols with identical 0°C to 70°C operating temperature range.

Q: What is the difference between SN75175DR and DS3486MX/NOPB? A: SN75175DR is electrically compatible but adds RS485 protocol support. It maintains the same 16-SOIC package, surface mount configuration, 0/4 receiver count, and 0°C to 70°C operating temperature. The receiver hysteresis differs (50 mV vs. 140 mV), representing a tighter input threshold specification that does not affect RS422/RS423 compatibility.

Q: Why are some substitutes marked Obsolete? A: Obsolete designation indicates the manufacturer has discontinued production and support. While these parts may remain electrically compatible, they should not be used in new designs due to limited availability and lack of manufacturer technical support.

Q: Does packaging format affect substitutability? A: Packaging format (Cut Tape & Digi-Reel® vs. Tube) does not affect electrical or mechanical compatibility. Selection depends on procurement and assembly requirements. All listed substitutes use identical 16-SOIC surface mount packages.

Q: Are extended temperature range parts compatible? A: Parts with -40°C to 85°C operating ranges (SN65175DR, SN65175D) are electrically compatible with the DS3486MX/NOPB (0°C to 70°C). The extended range represents additional capability and does not compromise operation within the original temperature specification.

Q: What inventory levels should influence part selection? A: MC3486DR offers the highest inventory (83969 Pcs), followed by SN75175DR (30100 Pcs). Higher inventory levels support sustained production requirements and reduce supply risk.

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