SN75ALS192D Equivalent & Substitute Parts

Part Overview

The SN75ALS192D is a 4/0 Driver RS422/RS485 interface IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is classified as Last Time Buy, indicating it is no longer in active production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications requiring RS422/RS485 differential signaling.

Substiute Parts

SN75ALS192D

Texas InstrumentsIn Stock: 1296SN75ALS192D Datasheet

Current PartRFQ

SN75ALS192DR

Texas InstrumentsIn Stock: 17178SN75ALS192DR Datasheet

MFR RecommendedRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

MFR RecommendedRFQ

DS26C31TMX/NOPB

Texas InstrumentsIn Stock: 20390DS26C31TMX/NOPB Datasheet

MFR RecommendedRFQ

ISL32172EIBZ

Renesas Electronics CorporationIn Stock: 3205ISL32172EIBZ Datasheet

MFR RecommendedRFQ

ISL32172EIBZ-T

Renesas Electronics CorporationIn Stock: 1382ISL32172EIBZ-T Datasheet

MFR RecommendedRFQ

ST26C31BDR

STMicroelectronicsIn Stock: 30523ST26C31BDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75ALS192D is determined by the following critical parameters:

• Package Compatibility: All substitute parts must use 16-SOIC (0.154", 3.90mm Width) surface mount packaging to ensure PCB layout compatibility
• Functional Equivalence: All substitutes must provide 4/0 Driver configuration with RS422/RS485 protocol support
• Electrical Compatibility: Supply voltage range and operating temperature range must encompass or match the original specification
• Compliance: RoHS3 compliance is required for all substitutes

Substitute parts are grouped into two categories based on voltage and temperature specifications:

Category A - Direct Voltage/Temperature Match: Parts with 4.75V ~ 5.25V supply voltage and 0°C ~ 70°C operating temperature range provide the closest electrical compatibility.

Category B - Extended Specifications: Parts with wider voltage ranges (3V ~ 5.5V or 4.5V ~ 5.5V) and extended temperature ranges (-40°C ~ 85°C or -40°C ~ 125°C) offer enhanced operational flexibility while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - SN75ALS192DR: This Texas Instruments part provides identical electrical specifications (4.75V ~ 5.25V, 0°C ~ 70°C) to the SN75ALS192D and is in Active product status. It is the direct functional equivalent with the same base product number (75ALS192) and offers the highest compatibility for direct replacement in existing designs.

Secondary Recommendations - DS26C31TM/NOPB and DS26C31TMX/NOPB: Both Texas Instruments DS26C31 variants provide extended operating temperature range (-40°C ~ 85°C) and slightly wider voltage tolerance (4.5V ~ 5.5V). These parts are suitable for applications requiring enhanced environmental performance while maintaining the same 4/0 driver configuration and RS422/RS485 protocol support. Both are in Active status with ROHS3 compliance.

Extended Range Alternative - ISL32172EIBZ and ISL32172EIBZ-T: Renesas Electronics ISL32172 series offers the widest operational envelope (3V ~ 5.5V supply, -40°C ~ 125°C operating temperature) and includes specified 32Mbps data rate capability. These parts are suitable for designs requiring extended temperature performance or lower supply voltage operation. Available in both Tube (ISL32172EIBZ) and Tape & Reel (ISL32172EIBZ-T) packaging options.

Alternative - ST26C31BDR: STMicroelectronics ST26C31BDR provides equivalent 4/0 driver functionality with extended temperature range (-40°C ~ 85°C) and voltage tolerance (4.5V ~ 5.5V). This part is in Active status and offers supply chain diversification from a different manufacturer.

All recommended substitutes maintain ROHS3 compliance and 16-SOIC package compatibility, ensuring PCB layout and assembly process compatibility with the original SN75ALS192D design.

Frequently Asked Questions (FAQ)

Q: Can SN75ALS192DR be used as a direct replacement for SN75ALS192D?

A: Yes. SN75ALS192DR is the direct equivalent with identical electrical specifications (4.75V ~ 5.25V supply voltage, 0°C ~ 70°C operating temperature range) and the same 16-SOIC package. Both share the same base product number (75ALS192). The primary difference is product status: SN75ALS192D is Last Time Buy while SN75ALS192DR is Active.

Q: What is the difference between DS26C31TM/NOPB and DS26C31TMX/NOPB?

A: Both parts are functionally equivalent 4/0 RS422/RS485 drivers with identical electrical specifications (4.5V ~ 5.5V, -40°C ~ 85°C). The difference is packaging: DS26C31TM/NOPB is supplied in Tube packaging, while DS26C31TMX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on procurement and assembly requirements.

Q: Are ISL32172EIBZ and ISL32172EIBZ-T interchangeable?

A: Both parts are functionally identical Renesas Electronics 4/0 RS422/RS485 drivers with the same electrical specifications (3V ~ 5.5V, -40°C ~ 125°C, 32Mbps data rate). The difference is packaging: ISL32172EIBZ is supplied in Tube format, while ISL32172EIBZ-T is supplied in Tape & Reel format. Selection depends on assembly process requirements.

Q: Can I use ISL32172EIBZ in place of SN75ALS192D?

A: Yes, with design considerations. ISL32172EIBZ provides the same 4/0 driver RS422/RS485 functionality in a compatible 16-SOIC package. However, it offers extended specifications: wider supply voltage range (3V ~ 5.5V vs. 4.75V ~ 5.25V), extended operating temperature (-40°C ~ 125°C vs. 0°C ~ 70°C), and specified 32Mbps data rate. These enhanced specifications make it suitable for applications requiring broader environmental performance.

Q: What is the significance of the voltage supply range differences?

A: The SN75ALS192D operates within 4.75V ~ 5.25V, a narrow 5V-centric range. Substitute parts with wider ranges (4.5V ~ 5.5V or 3V ~ 5.5V) provide greater tolerance to supply voltage variations and noise, making them suitable for applications with less regulated power supplies or extended environmental conditions. Designs operating strictly within the original 4.75V ~ 5.25V specification can use any substitute without voltage-related concerns.

Q: Why do some substitutes have extended temperature ranges?

A: The SN75ALS192D is specified for 0°C ~ 70°C, a commercial temperature range. Substitute parts with -40°C ~ 85°C or -40°C ~ 125°C ranges are qualified for industrial or extended temperature applications. If your application operates within the original 0°C ~ 70°C range, extended temperature substitutes provide additional design margin and environmental flexibility without requiring design changes.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts listed maintain ROHS3 compliance, ensuring compatibility with RoHS3 regulatory requirements and environmental standards.

Q: Does package type affect electrical performance?

A: No. Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR) packaging formats contain identical die and electrical specifications. Package selection is determined by procurement volume, assembly equipment compatibility, and supply chain logistics, not electrical performance.