SN75ALS164DWR Equivalent & Substitute Parts

Part Overview

The SN75ALS164DWR is an 8/8 half-duplex transceiver designed for IEEE 488 protocol applications in a 24-SOIC surface mount package. This part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements. The device operates within a 4.75V to 5.25V supply range and supports operating temperatures from 0°C to 70°C with a receiver hysteresis of 650 mV.

Substiute Parts

SN75ALS164DWR

Texas InstrumentsIn Stock: 2987SN75ALS164DWR Datasheet

Current PartRFQ

SN65C1167ENSR

Texas InstrumentsIn Stock: 9568SN65C1167ENSR Datasheet

MFR RecommendedRFQ

SN75ALS162DWR

Texas InstrumentsIn Stock: 1299SN75ALS162DWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN75ALS164DWR is determined by the following critical parameters:

Parametric Equivalent Substitutes are identified based on matching:

• Protocol (IEEE 488)
• Number of Drivers/Receivers (8/8)
• Duplex configuration (Half)
• Receiver Hysteresis (650 mV)
• Package type (24-SOIC)
• Supply voltage range compatibility (4.75V ~ 5.25V)
• Surface mount mounting type

Functional Equivalent Substitutes may differ in protocol, channel count, or duplex mode but maintain transceiver functionality within the interface category and surface mount packaging constraints.

The SN75ALS162DWR qualifies as a parametric equivalent, sharing identical electrical specifications and package footprint. The SN65C1167ENSR represents a functional equivalent with different protocol support (RS422/RS485) and reduced channel count (2/2), suitable for applications where protocol flexibility is acceptable.

Parameter Comparison

Engineering Selection Recommendations

SN75ALS162DWR is the primary substitute for direct replacement applications. This part maintains identical electrical specifications, package footprint, and protocol support as the SN75ALS164DWR. However, the SN75ALS162DWR carries a Last Time Buy status, indicating limited future availability. Selection of this substitute is appropriate for applications requiring exact parametric compatibility and existing PCB designs without modification.

SN65C1167ENSR is suitable for new designs where protocol flexibility permits transition from IEEE 488 to RS422/RS485 standards. This part offers extended operating temperature range (-40°C to 85°C) and active product status, ensuring long-term availability. The reduced channel count (2/2 versus 8/8) and full-duplex configuration require circuit redesign and are not suitable for direct pin-for-pin replacement. The smaller 16-SOIC package necessitates PCB layout modifications.

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, consistent with the original component's environmental and regulatory status.

Frequently Asked Questions (FAQ)

Q: Can the SN75ALS162DWR be used as a direct replacement for the SN75ALS164DWR?

A: Yes. The SN75ALS162DWR is a parametric equivalent with identical electrical specifications, receiver hysteresis, supply voltage range, operating temperature range, and 24-SOIC package footprint. No circuit modifications or PCB redesign is required for direct substitution.

Q: What are the limitations of using the SN65C1167ENSR as a substitute?

A: The SN65C1167ENSR differs in three critical areas: protocol (RS422/RS485 instead of IEEE 488), channel configuration (2/2 instead of 8/8), and duplex mode (full instead of half). Additionally, the 16-SOIC package is smaller than the 24-SOIC, requiring PCB layout changes. This substitute is suitable only for new designs where protocol and channel requirements can be accommodated.

Q: Why is the SN75ALS164DWR classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and no longer accepts new orders. This classification necessitates identifying substitute components for ongoing production and new design requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both the SN75ALS162DWR and SN65C1167ENSR are ROHS3 compliant, matching the environmental compliance status of the original SN75ALS164DWR.

Q: What is the difference between parametric and functional equivalents?

A: Parametric equivalents match all critical electrical and mechanical specifications, enabling direct replacement without design changes. Functional equivalents provide similar transceiver functionality but may differ in protocol, channel count, package size, or operating characteristics, requiring design evaluation and potential circuit modifications.

Q: Does the SN65C1167ENSR require different PCB footprint considerations?

A: Yes. The SN65C1167ENSR uses a 16-SOIC package (0.209", 5.30mm width) compared to the 24-SOIC package (0.295", 7.50mm width) of the SN75ALS164DWR. PCB layout and footprint modifications are necessary for this substitute.