SN75ALS160N IEEE 488 Half Duplex Transceiver Equivalent & Substitute Parts

Part Overview

The SN75ALS160N is an 8/8 half-duplex transceiver designed for IEEE 488 protocol applications, manufactured by Texas Instruments in a 20-DIP through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance, redesign, and procurement planning. The part operates within a 4.75V to 5.25V supply voltage range with a receiver hysteresis of 650 mV, suitable for legacy instrumentation and data acquisition systems requiring IEEE 488 bus interface functionality.

Substiute Parts

SN75ALS160N

Texas InstrumentsIn Stock: 5750SN75ALS160N Datasheet

Current PartRFQ

SN65C1167ENSR

Texas InstrumentsIn Stock: 9568SN65C1167ENSR Datasheet

MFR RecommendedRFQ

SN75161BN

Texas InstrumentsIn Stock: 2687SN75161BN Datasheet

Parametric EquivalentRFQ

SN75ALS161N

Texas InstrumentsIn Stock: 1931SN75ALS161N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN75ALS160N is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Protocol compatibility (IEEE 488)
• Driver/Receiver configuration (8/8)
• Duplex mode (Half)
• Receiver hysteresis (650 mV)
• Supply voltage range (4.75V ~ 5.25V)
• Operating temperature range (0°C ~ 70°C)
• Package type (20-DIP through-hole)

Secondary Substitution Criteria:

• RoHS3 compliance status
• Regulatory compliance (REACH, ECCN, HTSUS)

Substitute parts are grouped into two categories: parametric equivalents that maintain identical electrical and mechanical specifications, and manufacturer-recommended alternatives that provide functional equivalence within different package and protocol configurations.

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

SN75ALS161N and SN75161BN are parametric equivalents to the SN75ALS160N. Both parts maintain identical electrical specifications including 8/8 driver/receiver configuration, half-duplex operation, 650 mV receiver hysteresis, 4.75V to 5.25V supply voltage range, 0°C to 70°C operating temperature, and 20-DIP through-hole packaging. All three parts are obsolete and ROHS3 compliant. Selection between these three parts should be based on inventory availability and procurement lead times, as they are functionally interchangeable.

Manufacturer-Recommended Alternative:

SN65C1167ENSR is designated as the manufacturer-recommended substitute. This part differs significantly in protocol (RS422/RS485 instead of IEEE 488), driver/receiver count (2/2 instead of 8/8), duplex mode (full instead of half), and package type (16-SOIC surface mount instead of 20-DIP through-hole). The SN65C1167ENSR is active in product status and offers extended operating temperature range (-40°C to 85°C) and wider supply voltage tolerance (4.5V to 5.5V). This part is suitable only for applications where IEEE 488 protocol is not required and where surface-mount packaging and full-duplex operation are acceptable.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. The SN65C1167ENSR's active product status provides superior long-term availability compared to the obsolete status of the parametric equivalents.

Frequently Asked Questions (FAQ)

Q: Can SN75ALS161N and SN75161BN be used interchangeably with SN75ALS160N?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. They maintain the same 8/8 driver/receiver configuration, half-duplex operation, 650 mV receiver hysteresis, supply voltage range, operating temperature range, and 20-DIP through-hole package. Selection should be based on availability and lead time.

Q: Is SN65C1167ENSR a direct replacement for SN75ALS160N?

A: No. While designated as the manufacturer-recommended substitute, SN65C1167ENSR operates on different protocols (RS422/RS485 versus IEEE 488), has a reduced driver/receiver count (2/2 versus 8/8), operates in full-duplex mode instead of half-duplex, and uses surface-mount 16-SOIC packaging instead of through-hole 20-DIP. This part is suitable only for applications where IEEE 488 protocol compatibility is not required.

Q: What are the key parameters that determine substitution eligibility?

A: For direct substitution, the following parameters must match: protocol (IEEE 488), driver/receiver configuration (8/8), duplex mode (half), receiver hysteresis (650 mV), supply voltage range (4.75V to 5.25V), operating temperature range (0°C to 70°C), and package type (20-DIP through-hole). Deviations in any of these parameters require circuit redesign and validation.

Q: Why is SN75ALS160N obsolete, and what are the long-term implications?

A: The SN75ALS160N is classified as obsolete by the manufacturer. Parametric equivalents SN75ALS161N and SN75161BN are also obsolete. For long-term procurement and new designs, SN65C1167ENSR is the only active product available from Texas Instruments, though it requires protocol and package redesign. Inventory planning should account for the limited availability of all IEEE 488 transceiver options.

Q: Are there package considerations when selecting a substitute?

A: Yes. SN75ALS160N, SN75ALS161N, and SN75161BN all use 20-DIP through-hole packaging and are mechanically interchangeable on existing PCBs. SN65C1167ENSR uses 16-SOIC surface-mount packaging and requires PCB redesign. Through-hole to surface-mount conversion involves changes to board layout, assembly process, and testing procedures.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All four parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across all substitutes. However, the extended operating temperature range of SN65C1167ENSR (-40°C to 85°C versus 0°C to 70°C) may provide advantages in industrial or automotive applications requiring wider temperature tolerance.