SN75108ADR Equivalent & Substitute Parts

Part Overview

The SN75108ADR is a 0/2 Receiver interface IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as Obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations. The part operates within a ±4.75V to 5.25V supply voltage range and supports operating temperatures from 0°C to 70°C. Due to its obsolete status, equivalent or substitute components must be evaluated to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

SN75108ADR

Texas InstrumentsIn Stock: 5497SN75108ADR Datasheet

Current PartRFQ

SN65C1167ENSR

Texas InstrumentsIn Stock: 9568SN65C1167ENSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75108ADR is based on the following critical parameters:

Functional Compatibility: The SN75108ADR is a 0/2 Receiver. Substitute components must provide receiver functionality suitable for interface applications.

Electrical Specifications: Supply voltage range and operating temperature range define the operational envelope. Substitute parts must support equivalent or broader voltage and temperature specifications to ensure drop-in compatibility.

Physical Form Factor: Surface mount packaging with SOIC configuration is required for PCB integration. Package dimensions and pin count must be compatible with existing board layouts.

Compliance & Certification: RoHS3 compliance and MSL rating ensure environmental and manufacturing process compatibility.

The SN65C1167ENSR is identified as a manufacturer-recommended substitute based on functional interface capability, supply voltage compatibility, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The SN65C1167ENSR is an Active product from Texas Instruments with ROHS3 compliance and MSL 1 rating, providing long-term availability and manufacturing process compatibility. The substitute part operates across a broader temperature range (-40°C to 85°C) compared to the original SN75108ADR (0°C to 70°C), and maintains supply voltage compatibility within the specified operating envelope. The SN65C1167ENSR is a 2/2 Transceiver with full duplex RS422/RS485 protocol support, providing enhanced functionality beyond the receiver-only configuration of the SN75108ADR. Physical integration requires evaluation of the package size difference: the SN65C1167ENSR uses a 16-SOIC package (5.30mm width) versus the 14-SOIC package (3.90mm width) of the original part.

Frequently Asked Questions (FAQ)

Q: Can the SN65C1167ENSR directly replace the SN75108ADR without PCB modifications?

A: The SN65C1167ENSR has a different package size (16-SOIC versus 14-SOIC) and pin count, requiring PCB layout evaluation. Pin-to-pin compatibility must be verified against the specific application schematic before implementation.

Q: What are the key differences between these two parts?

A: The SN75108ADR is a receiver-only device (0/2 configuration), while the SN65C1167ENSR is a full duplex transceiver (2/2 configuration) with RS422/RS485 protocol support. The substitute part offers broader operating temperature range and Active product status for continued availability.

Q: Is the SN65C1167ENSR suitable for applications requiring only receiver functionality?

A: The SN65C1167ENSR provides transceiver capability, which includes receiver functionality. Applications requiring receiver-only operation can utilize the receiver channels of this part, though the additional driver functionality will remain unused.

Q: Are both parts RoHS3 compliant?

A: Yes, both the SN75108ADR and SN65C1167ENSR are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the supply voltage compatibility between these parts?

A: The SN75108ADR operates at ±4.75V to 5.25V, while the SN65C1167ENSR operates at 4.5V to 5.5V. The substitute part supports a slightly broader voltage range and maintains compatibility within standard 5V supply applications.