SN75ALS192N Equivalent & Substitute Parts

Part Overview

The SN75ALS192N is a 4/0 Driver IC for RS422 and RS485 protocols, manufactured by Texas Instruments in a 16-DIP through-hole package. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The SN75ALS192 series maintains consistent electrical and mechanical specifications across package variants, enabling direct functional substitution based on application requirements.

Substiute Parts

SN75ALS192N

Texas InstrumentsIn Stock: 3333SN75ALS192N Datasheet

Current PartRFQ

SN75ALS192DR

Texas InstrumentsIn Stock: 17178SN75ALS192DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75ALS192N is determined by equivalence in the following critical parameters:

• Base product number (75ALS192) ensures identical die and electrical performance
• Protocol support (RS422, RS485) must remain constant
• Driver/receiver configuration (4/0) must match
• Supply voltage range (4.75V ~ 5.25V) must be identical
• Operating temperature range (0°C ~ 70°C) must be maintained
• RoHS3 compliance must be preserved

The primary distinction between the main part and substitute relates to packaging and mounting technology. The SN75ALS192N uses through-hole mounting (16-DIP), while the SN75ALS192DR uses surface-mount technology (16-SOIC). Both variants share identical electrical specifications and are manufactured by the same supplier.

Parameter Comparison

Engineering Selection Recommendations

The SN75ALS192DR is the manufacturer-recommended substitute for the SN75ALS192N. Both parts maintain identical electrical specifications and regulatory compliance (ROHS3). Selection between these variants depends on board-level design constraints:

• For through-hole PCB designs, the SN75ALS192N remains the appropriate choice where inventory permits
• For surface-mount PCB designs or new production, the SN75ALS192DR is the active equivalent
• The SN75ALS192DR is currently in active production status, ensuring long-term availability and supply chain stability
• Both parts satisfy identical functional requirements for RS422 and RS485 driver applications

Frequently Asked Questions (FAQ)

Q: Can the SN75ALS192DR directly replace the SN75ALS192N?

A: Electrically and functionally, yes. Both parts share identical driver specifications, protocol support, and electrical performance. The primary difference is packaging: the SN75ALS192N uses 16-DIP through-hole mounting, while the SN75ALS192DR uses 16-SOIC surface-mount. PCB layout and assembly process must accommodate the selected package type.

Q: Why is the SN75ALS192N listed as obsolete?

A: The SN75ALS192N (through-hole package) has been superseded by the SN75ALS192DR (surface-mount package) as manufacturing has shifted toward surface-mount technology. The active SN75ALS192DR provides equivalent functionality with modern packaging.

Q: Are there any electrical differences between these parts?

A: No. Both parts operate at identical supply voltage (4.75V ~ 5.25V), temperature range (0°C ~ 70°C), and provide the same 4/0 driver/receiver configuration for RS422 and RS485 protocols.

Q: What are the compliance differences?

A: Both parts are ROHS3 compliant and REACH unaffected. The SN75ALS192DR has an MSL rating of 1 (Unlimited), while the SN75ALS192N is not applicable for MSL. This affects moisture handling during storage and assembly for surface-mount components only.

Q: Which part should be selected for new designs?

A: The SN75ALS192DR is recommended for new designs due to its active production status and surface-mount compatibility with modern PCB assembly processes.