SN75196N Equivalent & Substitute Parts

Part Overview

The SN75196N is a full-duplex RS232 transceiver with 5 drivers and 3 receivers, manufactured by Texas Instruments in a 20-pin DIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The SN75196N provides bidirectional serial communication interface functionality suitable for legacy systems requiring RS232 protocol compliance.

Substiute Parts

SN75196N

Texas InstrumentsIn Stock: 9299SN75196N Datasheet

Current PartRFQ

SN75196DW

Texas InstrumentsIn Stock: 5932SN75196DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN75196N is determined by strict equivalence across the following critical parameters:

• Protocol specification: RS232 full-duplex
• Driver/receiver configuration: 5 drivers and 3 receivers
• Receiver hysteresis: 500 mV
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: 0°C ~ 70°C
• RoHS3 compliance and MSL rating

The SN75196DW qualifies as a direct substitute based on identical electrical specifications and functional characteristics. The primary difference is packaging format: the SN75196N uses through-hole 20-DIP mounting, while the SN75196DW uses surface-mount 20-SOIC technology. Both parts share the same base product number (SN75196) and maintain full electrical and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The SN75196DW is the direct electrical equivalent of the SN75196N. Selection between these parts depends on circuit board design requirements:

For through-hole PCB designs, the SN75196N remains viable where inventory is available, though its obsolete status limits long-term procurement. The SN75196DW is recommended for new designs and ongoing production due to its Last Time Buy status, which provides extended availability compared to the fully obsolete SN75196N.

Both parts maintain ROHS3 compliance and identical electrical specifications. The transition from DIP to SOIC packaging requires PCB layout modification but does not affect functional performance or signal integrity. MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either package type.

Frequently Asked Questions (FAQ)

Q: Can the SN75196DW directly replace the SN75196N in existing designs?

A: Electrical substitution is complete. The SN75196DW provides identical RS232 transceiver functionality with 5/3 driver/receiver configuration. PCB layout modification is required due to package format change from 20-DIP to 20-SOIC.

Q: What is the primary difference between SN75196N and SN75196DW?

A: The SN75196N uses through-hole DIP packaging for manual or wave soldering assembly. The SN75196DW uses surface-mount SOIC packaging for automated pick-and-place assembly. All electrical parameters and functional specifications are identical.

Q: Are there supply voltage or temperature rating differences?

A: No. Both parts operate across 4.5V to 5.5V supply range and 0°C to 70°C temperature range with identical receiver hysteresis of 500 mV.

Q: What does the Last Time Buy status of SN75196DW indicate?

A: Last Time Buy status means Texas Instruments has announced final production runs with a defined cutoff date. This provides extended availability compared to fully obsolete parts but requires procurement planning within the specified window.

Q: Are both parts RoHS compliant?

A: Yes. Both SN75196N and SN75196DW are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.