SN65HVD23P Equivalent & Substitute Parts

Part Overview

The SN65HVD23P is a half-duplex RS422/RS485 transceiver IC manufactured by Texas Instruments in an 8-DIP through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The SN65HVD23P operates within a 4.5V to 5.5V supply voltage range and supports data rates up to 25 Mbps, making it suitable for industrial communication applications requiring half-duplex serial communication protocols.

Substiute Parts

SN65HVD23P

Texas InstrumentsIn Stock: 2403SN65HVD23P Datasheet

Current PartRFQ

SN65HVD23DR

Texas InstrumentsIn Stock: 5000235SN65HVD23DR Datasheet

MFR RecommendedRFQ

SN65HVD20P

Texas InstrumentsIn Stock: 1224SN65HVD20P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN65HVD23P is determined by the following critical parameters:

• Protocol compatibility: RS422/RS485 half-duplex operation
• Electrical specifications: 1/1 driver/receiver configuration, 130 mV receiver hysteresis, 25 Mbps data rate
• Supply voltage: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package compatibility: 8-DIP through-hole or equivalent surface-mount alternatives

Two substitute categories exist:

MFR Recommended Substitute (SN65HVD23DR): Identical electrical and functional specifications with alternative surface-mount packaging (8-SOIC). This part maintains full compatibility with the original design while offering modern manufacturing advantages.

Parametric Equivalent (SN65HVD20P): Maintains identical electrical specifications and through-hole packaging format. This part provides direct form-fit-function replacement for the obsolete SN65HVD23P.

Parameter Comparison

Engineering Selection Recommendations

For new designs: SN65HVD23DR is the recommended substitute. This part is active in production status, ensuring long-term availability and supply chain stability. It maintains identical electrical and functional specifications while offering surface-mount packaging suitable for modern PCB assembly processes. ROHS3 compliance and MSL rating of 1 support contemporary manufacturing requirements.

For through-hole applications requiring pin-compatible replacement: SN65HVD20P provides parametric equivalence with identical package format. Both the original SN65HVD23P and SN65HVD20P are obsolete; however, SN65HVD20P maintains the same 8-DIP footprint for direct board-level substitution.

Compliance considerations: All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can SN65HVD23DR replace SN65HVD23P directly on the PCB?

A: SN65HVD23DR is electrically and functionally identical but uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole. Direct PCB replacement requires board redesign to accommodate the different package footprint. Pin-to-pin functionality is equivalent.

Q: What is the difference between SN65HVD23P and SN65HVD20P?

A: Both parts share identical electrical specifications, supply voltage, operating temperature range, data rate, and through-hole 8-DIP packaging. The primary difference is the base product number designation (65HVD23 versus 65HVD20). Both are classified as obsolete.

Q: Why is SN65HVD23P marked as obsolete?

A: Product obsolescence indicates the manufacturer has discontinued production. SN65HVD23DR, the active production equivalent, is available as the recommended long-term replacement.

Q: Are all three parts ROHS3 compliant?

A: Yes. SN65HVD23P, SN65HVD23DR, and SN65HVD20P are all ROHS3 compliant and REACH unaffected.

Q: What does MSL rating 1 mean for SN65HVD23DR?

A: MSL (Moisture Sensitivity Level) rating of 1 indicates unlimited floor life. The component can be stored and handled without time-based moisture absorption restrictions, simplifying inventory management compared to higher MSL ratings.

Q: Can I use SN65HVD20P as a substitute if SN65HVD23P is unavailable?

A: SN65HVD20P provides parametric equivalence with identical package format and electrical specifications. However, both parts are obsolete. For new production, SN65HVD23DR is the recommended active substitute.