SN65175DRG4 Equivalent & Substitute Parts

Part Overview

The SN65175DRG4 is a 0/4 Receiver IC for RS422, RS423, and RS485 serial communication protocols, manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The receiver features 50 mV hysteresis and operates across an extended temperature range of -40°C to 85°C with a supply voltage of 4.75V to 5.25V.

Substiute Parts

SN65175DRG4

Texas InstrumentsIn Stock: 746SN65175DRG4 Datasheet

Current PartRFQ

DS3486M/NOPB

Texas InstrumentsIn Stock: 6122DS3486M/NOPB Datasheet

MFR RecommendedRFQ

DS3486MX/NOPB

Texas InstrumentsIn Stock: 1579DS3486MX/NOPB Datasheet

MFR RecommendedRFQ

SN65175DR

Texas InstrumentsIn Stock: 3748SN65175DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN65175DRG4 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

Protocol Compatibility: The SN65175DRG4 supports RS422, RS423, and RS485 protocols. Substitute parts must support at least RS422 and RS423 protocols. Parts supporting RS485 provide extended protocol coverage.

Temperature and Hysteresis Considerations: The original part operates from -40°C to 85°C with 50 mV receiver hysteresis. Substitute parts with narrower temperature ranges (0°C to 70°C) or different hysteresis values (140 mV) represent functional variations that must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - DS3486MX/NOPB: This part is the manufacturer-recommended substitute with active product status and current inventory availability (1501 pcs). It maintains full electrical compatibility with the SN65175DRG4 across all mandatory parameters: 16-SOIC package, surface mount configuration, 0/4 receiver architecture, and 4.75V to 5.25V supply voltage. ROHS3 compliance is maintained. The operating temperature range is restricted to 0°C to 70°C, and receiver hysteresis is 140 mV instead of 50 mV. These differences must be evaluated against specific application thermal and noise immunity requirements.

Secondary Substitute - DS3486M/NOPB: This part is also manufacturer-recommended with active status and higher inventory (6027 pcs). It is electrically identical to DS3486MX/NOPB but supplied in Tube packaging rather than Cut Tape & Digi-Reel format. Selection depends on procurement and assembly requirements.

Parametric Equivalent - SN65175DR: This part maintains identical electrical specifications to the SN65175DRG4, including 50 mV hysteresis and -40°C to 85°C operating temperature. However, it carries Obsolete product status, making it unsuitable for new designs or long-term supply assurance. It is listed as a parametric equivalent only for reference in legacy system maintenance where existing inventory exists.

Frequently Asked Questions (FAQ)

Q: Can DS3486M/NOPB or DS3486MX/NOPB be used as direct drop-in replacements for SN65175DRG4?

A: Both DS3486 variants are electrically compatible at the package and pinout level. However, they differ in receiver hysteresis (140 mV vs. 50 mV) and operating temperature range (0°C to 70°C vs. -40°C to 85°C). Applications operating below 0°C or above 70°C, or requiring 50 mV hysteresis for noise immunity, must evaluate these differences against system specifications.

Q: What is the difference between DS3486M/NOPB and DS3486MX/NOPB?

A: Both parts are electrically identical. The difference is packaging: DS3486M/NOPB is supplied in Tube format, while DS3486MX/NOPB is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly line requirements and procurement preferences.

Q: Why is SN65175DR listed as a substitute if it is Obsolete?

A: SN65175DR is a parametric equivalent with identical electrical specifications to the SN65175DRG4. It is included for reference in applications where existing inventory is available or for legacy system maintenance. It is not recommended for new designs due to obsolete status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The SN65175DRG4 and all listed substitute parts (DS3486M/NOPB, DS3486MX/NOPB, and SN65175DR) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What protocols do the substitute parts support?

A: DS3486M/NOPB and DS3486MX/NOPB support RS422 and RS423 protocols. SN65175DR supports RS422, RS423, and RS485 protocols, matching the original SN65175DRG4. Applications requiring RS485 support should verify protocol requirements before substitution.