SN75114D Equivalent & Substitute Parts

Part Overview

The SN75114D is a 2/0 driver IC manufactured by Texas Instruments in a 16-SOIC package. This component is classified as obsolete, indicating it has been discontinued and is no longer in active production. The SN75114D operates within a supply voltage range of 4.75V to 5.25V and is designed for surface mount applications with an operating temperature range of 0°C to 70°C. Due to its obsolete status, identifying functionally compatible substitute components is essential for ongoing system maintenance, redesign efforts, and procurement continuity.

Substiute Parts

SN75114D

Texas InstrumentsIn Stock: 2187SN75114D Datasheet

Current PartRFQ

SN65C1167ENSR

Texas InstrumentsIn Stock: 9568SN65C1167ENSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75114D is determined by the following critical parameters:

Functional Compatibility Criteria:

• Package type: 16-SOIC surface mount configuration
• Supply voltage range: Must accommodate or exceed the 4.75V to 5.25V requirement
• Pin count and layout: 16-pin configuration
• Interface category: Electronic interface driver/transceiver functionality
• RoHS and environmental compliance: ROHS3 compliance and MSL rating

The SN65C1167ENSR qualifies as a substitute based on its 16-SOIC package configuration, surface mount capability, compatible supply voltage range (4.5V to 5.5V), and identical RoHS3 compliance status. While the SN65C1167ENSR provides enhanced functionality as a 2/2 transceiver with RS422/RS485 protocol support compared to the 2/0 driver configuration of the SN75114D, it maintains electrical and mechanical compatibility within the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The SN65C1167ENSR is an active product with current manufacturing support from Texas Instruments, providing supply chain continuity for applications previously using the obsolete SN75114D. Both components maintain ROHS3 compliance and identical MSL ratings, ensuring equivalent environmental and regulatory standing.

The SN65C1167ENSR operates across an extended temperature range (-40°C to 85°C) compared to the SN75114D (0°C to 70°C), providing broader operational capability. The supply voltage range of the SN65C1167ENSR (4.5V to 5.5V) encompasses the SN75114D specification (4.75V to 5.25V), ensuring voltage compatibility.

Both components utilize 16-SOIC surface mount packages. The SN65C1167ENSR package width is 5.30mm compared to the SN75114D at 3.90mm; PCB layout verification is necessary to confirm physical fit within existing designs.

Frequently Asked Questions (FAQ)

Q: Can the SN65C1167ENSR directly replace the SN75114D in existing designs?

A: The SN65C1167ENSR is electrically and mechanically compatible based on supply voltage range, pin count, package type, and compliance certifications. However, the 16-SOIC package width differs (5.30mm versus 3.90mm), requiring PCB layout verification before implementation.

Q: What are the key differences between these components?

A: The SN75114D is a 2/0 driver (output only), while the SN65C1167ENSR is a 2/2 transceiver (bidirectional communication). The SN65C1167ENSR includes RS422 and RS485 protocol support and operates across a wider temperature range. Both maintain identical RoHS3 compliance and MSL ratings.

Q: Why is the SN75114D classified as obsolete?

A: The SN75114D has been discontinued by Texas Instruments. The SN65C1167ENSR represents the active product line continuation for similar interface applications.

Q: Are there any supply voltage compatibility concerns?

A: The SN65C1167ENSR supply voltage range (4.5V to 5.5V) fully encompasses the SN75114D requirement (4.75V to 5.25V). No voltage compatibility issues exist.

Q: What should be verified before substitution?

A: Confirm PCB layout accommodates the 16-SOIC package width difference (5.30mm for substitute versus 3.90mm for original). Verify pin assignment compatibility with existing circuit design. Confirm operating temperature requirements fall within the SN65C1167ENSR range (-40°C to 85°C).