SN75ALS199N Equivalent & Substitute Parts

Part Overview

The SN75ALS199N is a 0/4 Receiver interface IC manufactured by Texas Instruments in a 16-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The part operates within a 4.75V to 5.25V supply voltage range and is rated for 0°C to 70°C operating temperatures. Identifying compatible alternatives ensures design flexibility and supply chain resilience for applications requiring receiver functionality in this electrical and mechanical specification range.

Substiute Parts

SN75ALS199N

Texas InstrumentsIn Stock: 2438SN75ALS199N Datasheet

Current PartRFQ

SN65LBC175ADR

Texas InstrumentsIn Stock: 3102SN65LBC175ADR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75ALS199N is determined by the following critical parameters:

• Electrical Compatibility: Supply voltage range (4.75V ~ 5.25V), receiver configuration (0/4), and receiver hysteresis characteristics
• Functional Equivalence: Interface receiver functionality with matching driver/receiver count
• Compliance Requirements: ROHS3 compliance and REACH unaffected status
• Mechanical Considerations: Package type and mounting method

The SN65LBC175ADR qualifies as a manufacturer-recommended substitute based on matching electrical specifications (identical supply voltage range and 0/4 receiver configuration), equivalent compliance certifications, and functional receiver capability. While the substitute features a surface-mount SOIC package rather than through-hole DIP, it maintains electrical parameter compatibility within the allowed specification envelope.

Parameter Comparison

Engineering Selection Recommendations

The SN65LBC175ADR is the manufacturer-recommended substitute for the obsolete SN75ALS199N. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements. The substitute is currently in active production status, ensuring supply availability and long-term support.

Selection of the SN65LBC175ADR requires accommodation of the package transition from 16-DIP through-hole to 16-SOIC surface-mount configuration. The substitute provides an extended operating temperature range (-40°C to 85°C) compared to the original part (0°C to 70°C), offering broader environmental capability. Electrical specifications remain equivalent within the defined supply voltage and receiver configuration parameters.

Frequently Asked Questions (FAQ)

Q: Can the SN65LBC175ADR directly replace the SN75ALS199N in existing PCB designs?

A: Direct PCB replacement is not possible due to package differences. The SN75ALS199N uses a 16-DIP through-hole package, while the SN65LBC175ADR uses a 16-SOIC surface-mount package. PCB redesign is required to accommodate the different footprint and mounting method.

Q: Are the electrical specifications compatible between these parts?

A: Yes. Both components operate within the same 4.75V to 5.25V supply voltage range and maintain identical 0/4 receiver configuration. Functional receiver capability is equivalent.

Q: What is the significance of the extended operating temperature range in the substitute?

A: The SN65LBC175ADR operates from -40°C to 85°C, compared to the original part's 0°C to 70°C range. This extended range provides greater flexibility for applications requiring operation in wider temperature environments, though it does not affect substitution validity for designs operating within the original temperature specification.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the SN75ALS199N and SN65LBC175ADR are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Why is the SN75ALS199N classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The SN65LBC175ADR represents the active alternative, ensuring continued availability and manufacturer support for new designs and production requirements.