DS36F95M/NOPB Equivalent & Substitute Parts

Part Overview

The DS36F95M/NOPB is a half-duplex RS422/RS485 transceiver manufactured by Texas Instruments in an 8-SOIC surface mount package. This part is classified as obsolete, with 3900 units currently in stock. Due to its obsolete status, identifying functionally equivalent and compatible substitute parts is essential for ongoing system support, design updates, and long-term supply chain planning.

Key Parameters

Parameter	DS36F95M/NOPB
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS422, RS485
Duplex Configuration	Half
Number of Drivers/Receivers	1/1
Receiver Hysteresis	50 mV
Voltage Supply Range	4.75V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DS36F95M/NOPB is determined by the following critical parameters:

Protocol compatibility: RS422 and/or RS485 support
Duplex configuration: Half-duplex operation
Driver/Receiver count: 1/1 configuration
Package type: 8-SOIC form factor
Supply voltage range: 4.75V ~ 5.25V
Operating temperature range: Minimum 0°C, maximum 70°C or higher
Receiver hysteresis: 50 mV nominal (±10 mV tolerance acceptable)
Surface mount capability
RoHS3 compliance

Substitute parts are grouped into three categories:

Direct Manufacturer Substitutes (Active Status): Parts from Texas Instruments with identical electrical specifications and active product status, suitable for immediate replacement in new designs.

Manufacturer Recommended Substitutes (Active or Obsolete Status): Parts recommended by Texas Instruments or component manufacturers with compatible electrical characteristics and enhanced specifications (extended temperature range, higher data rates).

Parametric Equivalents (Active or Obsolete Status): Parts from alternative manufacturers (Renesas, Analog Devices) meeting core electrical and mechanical requirements with minor parameter variations.

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Duplex	Drivers/Receivers	Hysteresis	Supply Voltage	Operating Temp	Package	Data Rate
DS36F95M/NOPB	Texas Instruments	Obsolete	RS422, RS485	Half	1/1	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
SN75ALS176BDR	Texas Instruments	Active	RS422, RS485	Half	1/1	60 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
SN65ALS1176DR	Texas Instruments	Active	RS422, RS485	Half	1/1	60 mV	4.75V ~ 5.25V	-25°C ~ 85°C	8-SOIC	35 Mbps
SN75ALS176BD	Texas Instruments	Obsolete	RS422, RS485	Half	1/1	60 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
SN75ALS176DR	Texas Instruments	Obsolete	RS422, RS485	Half	1/1	60 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
SN75176AD	Texas Instruments	Obsolete	RS422, RS485	Half	1/1	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
SN75176ADG4	Texas Instruments	Obsolete	RS422, RS485	Half	1/1	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
SN75176BD	Texas Instruments	Obsolete	RS422, RS485	Half	1/1	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	—
ISL3179EFBZ	Renesas Electronics	Active	RS422, RS485	Half	1/1	28 mV	3V ~ 3.6V	-40°C ~ 125°C	8-SOIC	40 Mbps
LT1785ACS8#PBF	Analog Devices Inc.	Active	RS422, RS485	Half	1/1	20 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-SOIC	250 kbps

Engineering Selection Recommendations

For New Designs (Active Product Status Required):

SN75ALS176BDR is the primary direct substitute from Texas Instruments with active product status. It maintains identical supply voltage range, operating temperature, and 8-SOIC package compatibility. The receiver hysteresis increase from 50 mV to 60 mV is within acceptable tolerance for RS422/RS485 applications. With 7796 units in stock, supply continuity is assured.

SN65ALS1176DR offers enhanced specifications including extended operating temperature range (-25°C to 85°C) and specified 35 Mbps data rate capability. This part is recommended for applications requiring improved temperature performance or higher data throughput. Active product status and 650,200 units in inventory provide long-term availability.

For Existing System Support (Obsolete Parts Acceptable):

SN75176AD, SN75176ADG4, and SN75176BD maintain the original 50 mV receiver hysteresis specification, providing the closest electrical match to DS36F95M/NOPB. These parts are suitable for field repairs and legacy system maintenance where exact parameter matching is required. All three are obsolete but currently in stock.

For Low-Voltage Applications:

ISL3179EFBZ from Renesas Electronics is an active product suitable only for systems operating at 3V to 3.6V supply voltage. This part is not compatible with the 4.75V to 5.25V requirement of the original DS36F95M/NOPB.

For Low-Speed Applications:

LT1785ACS8#PBF from Analog Devices Inc. is an active product with identical supply voltage and temperature range. The 250 kbps data rate specification indicates suitability for low-speed RS422/RS485 networks. The 20 mV receiver hysteresis is tighter than the original specification.

All recommended substitutes maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can SN75ALS176BDR directly replace DS36F95M/NOPB in existing designs?

A: Yes. SN75ALS176BDR is electrically compatible with identical supply voltage (4.75V ~ 5.25V), operating temperature (0°C ~ 70°C), and 8-SOIC package. The receiver hysteresis increases from 50 mV to 60 mV, which remains within acceptable RS422/RS485 specifications. Active product status ensures long-term availability.

Q: What is the difference between receiver hysteresis values?

A: Receiver hysteresis determines the voltage difference between the rising and falling threshold levels. The original DS36F95M/NOPB specifies 50 mV. Substitutes with 60 mV hysteresis provide slightly wider threshold separation, improving noise immunity in some applications. Substitutes with 28 mV or 20 mV hysteresis offer tighter thresholds for applications requiring precise signal detection.

Q: Why is ISL3180EIBZ listed but not recommended as a direct substitute?

A: ISL3180EIBZ is a full-duplex transceiver in a 14-SOIC package, whereas DS36F95M/NOPB is half-duplex in an 8-SOIC package. The different duplex configuration and package form factor make it incompatible for direct substitution despite matching protocol support.

Q: Can I use SN65ALS1176DR in place of DS36F95M/NOPB?

A: Yes, with consideration for enhanced specifications. SN65ALS1176DR maintains the 8-SOIC package and supply voltage range but extends operating temperature to -25°C ~ 85°C and specifies 35 Mbps data rate. It is suitable for applications requiring improved temperature performance. Active product status provides long-term supply security.

Q: What does "Obsolete" product status mean for substitution?

A: Obsolete status indicates the manufacturer no longer produces the part. However, current inventory remains available for purchase. For new designs, active-status substitutes are recommended. For field repairs and legacy system support, obsolete substitutes may be acceptable if inventory is available and performance requirements are met.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance, matching the environmental certification of DS36F95M/NOPB.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in multiple packaging formats: Cut Tape (CT), Digi-Reel, Tape & Reel (TR), and Tube. All maintain the 8-SOIC surface mount form factor. Packaging selection depends on procurement volume and assembly requirements.

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