DS96176CN/NOPB Equivalent & Substitute Parts

Part Overview

The DS96176CN/NOPB is a half-duplex RS422/RS485 transceiver IC manufactured by Texas Instruments in an 8-MDIP through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The device operates within a 4.75V to 5.25V supply range and is rated for 0°C to 70°C operating temperatures. Substitute parts must maintain functional compatibility across RS422/RS485 protocol support, half-duplex operation, and identical electrical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	DS96176CN/NOPB
Manufacturer	Texas Instruments
Category	Interface
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Half
Receiver Hysteresis	50 mV
Voltage - Supply	4.75V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package / Case	8-DIP (0.300", 7.62mm)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Core Compatibility Requirements:

Protocol: RS422/RS485 half-duplex operation
Number of Drivers/Receivers: 1/1 configuration
Voltage Supply Range: 4.75V ~ 5.25V
Package Type: 8-DIP through-hole form factor
Mounting Type: Through Hole

Acceptable Parameter Variations:

Receiver Hysteresis: 20 mV to 60 mV (DS96176CN/NOPB specifies 50 mV)
Operating Temperature: May extend beyond 0°C ~ 70°C range
Data Rate: Variations permitted if minimum performance maintained
Product Status: Active parts preferred over obsolete alternatives
RoHS Compliance: ROHS3 Compliant required

Substitute parts are grouped by manufacturer and functional equivalence. All listed substitutes maintain identical electrical interface characteristics and package dimensions, ensuring direct replacement capability in existing PCB designs.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Product Status
DS96176CN/NOPB	Texas Instruments	RS422, RS485	1/1	Half	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Obsolete
SN75176BP	Texas Instruments	RS422, RS485	1/1	Half	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LTC1485CN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	60 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LT1785ACN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	20 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LT1785AIN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	20 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-DIP	Active
LT1785CN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	20 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
LT1785IN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	20 mV	4.75V ~ 5.25V	-40°C ~ 85°C	8-DIP	Active
LTC1481CN8#PBF	Analog Devices Inc.	RS422, RS485	1/1	Half	45 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Active
SN75LBC176AP	Texas Instruments	RS422, RS485	1/1	Half	50 mV	4.75V ~ 5.25V	0°C ~ 70°C	8-DIP	Obsolete

Engineering Selection Recommendations

Primary Recommendation: SN75176BP

The SN75176BP is the direct active equivalent from Texas Instruments. It maintains identical electrical specifications to the DS96176CN/NOPB, including 50 mV receiver hysteresis, matching supply voltage range, and identical operating temperature range. As an active product with ROHS3 compliance, it provides the most straightforward replacement path for existing designs. This part is currently in production with substantial inventory availability.

Secondary Recommendations: LT1785 Series (Analog Devices Inc.)

The LT1785ACN8#PBF, LT1785CN8#PBF, LT1785AIN8#PBF, and LT1785IN8#PBF variants are manufacturer-recommended alternatives from Analog Devices Inc. These parts maintain full RS422/RS485 protocol compatibility and identical supply voltage specifications. The LT1785 series features reduced receiver hysteresis (20 mV versus 50 mV), which may provide improved noise margin in certain applications. Temperature-rated variants (AIN8, IN8) extend operating range to -40°C ~ 85°C for industrial applications. All variants are active products with ROHS3 compliance.

Alternative: LTC1485CN8#PBF

The LTC1485CN8#PBF from Analog Devices Inc. provides functional equivalence with 60 mV receiver hysteresis. This part is suitable for applications where hysteresis tolerance permits variation from the original 50 mV specification. Active product status and ROHS3 compliance ensure regulatory compliance.

Obsolete Alternative: SN75LBC176AP

The SN75LBC176AP is an obsolete Texas Instruments part with identical electrical specifications to the DS96176CN/NOPB. While functionally equivalent, its obsolete status makes it unsuitable for new designs or long-term production support.

Frequently Asked Questions (FAQ)

Q: Can I use SN75176BP as a direct replacement for DS96176CN/NOPB?

A: Yes. The SN75176BP is electrically and mechanically identical to the DS96176CN/NOPB. Both devices feature 1/1 half-duplex RS422/RS485 transceiver configuration, 50 mV receiver hysteresis, 4.75V ~ 5.25V supply voltage, and 8-DIP through-hole packaging. The primary difference is product status: SN75176BP is active while DS96176CN/NOPB is obsolete.

Q: What is the significance of receiver hysteresis variation in substitute parts?

A: Receiver hysteresis determines the voltage differential required to switch receiver output states. The DS96176CN/NOPB specifies 50 mV. Substitute parts with lower hysteresis (20 mV in LT1785 series) provide tighter noise margins and faster response to signal transitions. Higher hysteresis (60 mV in LTC1485CN8#PBF) increases noise immunity. Selection depends on signal integrity requirements in your specific application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification, matching the compliance status of the DS96176CN/NOPB. This ensures regulatory compliance for applications subject to RoHS directives.

Q: Can I use LT1785 variants with extended temperature ratings in place of the standard DS96176CN/NOPB?

A: Yes. The LT1785AIN8#PBF and LT1785IN8#PBF extend operating temperature to -40°C ~ 85°C while maintaining all other electrical specifications. These variants are suitable for applications requiring broader temperature operation. Standard variants (LT1785ACN8#PBF, LT1785CN8#PBF) match the original 0°C ~ 70°C range.

Q: What is the difference between LTC1481CN8#PBF and other Analog Devices substitutes?

A: The LTC1481CN8#PBF features 45 mV receiver hysteresis and supports data rates up to 2.5 Mbps, compared to the LT1785 series which specifies 250 kbps. This higher data rate capability makes LTC1481CN8#PBF suitable for applications requiring faster communication speeds while maintaining RS422/RS485 protocol compatibility and identical package form factor.

Q: Are through-hole packages mandatory for substitution?

A: Yes. All listed substitute parts maintain 8-DIP through-hole packaging identical to the DS96176CN/NOPB. This ensures mechanical compatibility with existing PCB designs without requiring layout modifications.

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