SN75115DR Equivalent & Substitute Parts

Part Overview

The SN75115DR is a 0/2 Receiver interface IC manufactured by Texas Instruments in a 16-SOIC package. This component is classified as Obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations. The receiver functionality requires substitution with components that maintain electrical compatibility while meeting current availability and compliance requirements.

Substiute Parts

SN75115DR

Texas InstrumentsIn Stock: 790SN75115DR Datasheet

Current PartRFQ

SN65C1167ENSR

Texas InstrumentsIn Stock: 9568SN65C1167ENSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75115DR is based on the following critical parameters:

• Package Compatibility: Both main and substitute parts use 16-SOIC surface mount packages, ensuring PCB layout compatibility
• Supply Voltage Range: The substitute operates within an extended voltage range (4.5V ~ 5.5V) that encompasses the original specification (4.75V ~ 5.25V)
• Receiver/Transceiver Functionality: The SN65C1167ENSR provides 2/2 transceiver capability, which includes the receiver functionality of the original 0/2 receiver configuration
• Compliance Standards: Both components maintain ROHS3 compliance and MSL Level 1 rating
• Manufacturer Continuity: Both parts are manufactured by Texas Instruments, ensuring design consistency and support

The SN65C1167ENSR is classified as an Active product with extended operating temperature range (-40°C ~ 85°C), providing improved availability and broader environmental performance compared to the Obsolete SN75115DR.

Parameter Comparison

Engineering Selection Recommendations

The SN65C1167ENSR serves as the manufacturer-recommended substitute for the obsolete SN75115DR. Selection of this alternative is justified by:

• Product Availability: The SN65C1167ENSR maintains Active product status with 9508 units in stock, compared to the Obsolete SN75115DR with limited remaining inventory
• Regulatory Compliance: Both components achieve ROHS3 compliance and carry identical MSL Level 1 ratings, satisfying environmental and reliability requirements
• Electrical Compatibility: The substitute's supply voltage range (4.5V ~ 5.5V) fully encompasses the original specification, ensuring operation across the intended power supply window
• Functional Capability: The transceiver configuration of the SN65C1167ENSR includes full receiver functionality, supporting the original receiver-only application
• Temperature Performance: Extended operating range (-40°C ~ 85°C) provides enhanced thermal margin beyond the original specification (0°C ~ 70°C)

Frequently Asked Questions (FAQ)

Q: Can the SN65C1167ENSR directly replace the SN75115DR on existing PCBs?

A: Physical package compatibility exists for both 16-SOIC variants. However, the SN65C1167ENSR has a slightly larger package width (5.30mm versus 3.90mm). PCB layout verification is necessary to confirm clearance with adjacent components and trace routing.

Q: What is the functional difference between a receiver and a transceiver?

A: The SN75115DR is a 0/2 receiver, providing receive-only capability. The SN65C1167ENSR is a 2/2 transceiver, providing both driver and receiver functionality. In receiver-only applications, the driver outputs of the substitute remain unused.

Q: Are there supply voltage compatibility concerns?

A: The SN65C1167ENSR operates across 4.5V ~ 5.5V, which fully encompasses the SN75115DR specification of 4.75V ~ 5.25V. No voltage adjustment is required.

Q: Does the extended temperature range of the substitute affect compatibility?

A: The SN65C1167ENSR's operating range (-40°C ~ 85°C) exceeds the original specification (0°C ~ 70°C). This provides enhanced performance margin and does not create compatibility issues for applications within the original temperature window.

Q: What protocol standards does the SN65C1167ENSR support?

A: The substitute supports RS422 and RS485 protocols. Verify that the application circuit design aligns with the intended protocol implementation.

Q: Are both components RoHS compliant?

A: Both the SN75115DR and SN65C1167ENSR are ROHS3 compliant with MSL Level 1 ratings, meeting current environmental and reliability standards.