SN75161BDWR Equivalent & Substitute Parts

Part Overview

The SN75161BDWR is an IEEE 488 half-duplex transceiver IC manufactured by Texas Instruments, configured with 8 drivers and 8 receivers in a 20-SOIC surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. Identifying equivalent and substitute parts is necessary to ensure design continuity and long-term component availability for applications requiring IEEE 488 interface functionality.

Substiute Parts

SN75161BDWR

Texas InstrumentsIn Stock: 2280SN75161BDWR Datasheet

Current PartRFQ

SN65C1167ENSR

Texas InstrumentsIn Stock: 9568SN65C1167ENSR Datasheet

MFR RecommendedRFQ

SN75160BDWR

Texas InstrumentsIn Stock: 1644SN75160BDWR Datasheet

Parametric EquivalentRFQ

SN75ALS160DWR

Texas InstrumentsIn Stock: 2959SN75ALS160DWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN75161BDWR is determined by the following critical parameters:

Protocol Compatibility: IEEE 488 interface standard defines the electrical and functional requirements for signal transmission and reception.

Driver/Receiver Configuration: The 8/8 configuration specifies the number of independent driver and receiver channels available on the device.

Duplex Mode: Half-duplex operation restricts simultaneous bidirectional communication, which is fundamental to IEEE 488 bus architecture.

Electrical Specifications: Supply voltage range (4.75V ~ 5.25V), receiver hysteresis (650 mV), and operating temperature range (0°C ~ 70°C) must remain consistent for functional equivalence.

Package Compatibility: The 20-SOIC surface mount package defines physical and electrical pin compatibility.

Based on these parameters, the SN75161BDWR has two parametric equivalents that maintain identical electrical and functional specifications:

• SN75160BDWR: Parametric equivalent with identical protocol, driver/receiver count, duplex mode, electrical specifications, and package.
• SN75ALS160DWR: Parametric equivalent with identical protocol, driver/receiver count, duplex mode, electrical specifications, and package; differs only in packaging format (Tape & Reel vs. Cut Tape).

The SN65C1167ENSR is listed as a manufacturer-recommended substitute but operates under different protocol (RS422/RS485), different driver/receiver configuration (2/2), and different duplex mode (Full), making it suitable only for applications where protocol migration is acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

SN75160BDWR and SN75ALS160DWR are parametric equivalents to the SN75161BDWR and maintain full functional compatibility. Both are Active products with current manufacturing status, ensuring long-term availability. Selection between these two depends on packaging requirements: SN75160BDWR is supplied in Cut Tape format, while SN75ALS160DWR is supplied in Tape & Reel format. Both are ROHS3 compliant with identical electrical specifications.

For Protocol Migration (Alternative Substitute):

SN65C1167ENSR is a manufacturer-recommended substitute suitable only when application requirements permit migration from IEEE 488 to RS422/RS485 protocols. This device operates with different electrical parameters (60 mV hysteresis vs. 650 mV, extended temperature range -40°C ~ 85°C) and reduced driver/receiver count (2/2 vs. 8/8). This substitution requires circuit redesign and is not a drop-in replacement.

Frequently Asked Questions (FAQ)

Q: Can SN75160BDWR be used as a direct replacement for SN75161BDWR?

A: Yes. SN75160BDWR is a parametric equivalent with identical protocol (IEEE 488), driver/receiver configuration (8/8), duplex mode (Half), electrical specifications, and package dimensions. The only difference is product status: SN75160BDWR is Active while SN75161BDWR is Last Time Buy.

Q: What is the difference between SN75160BDWR and SN75ALS160DWR?

A: Both are parametric equivalents with identical electrical and functional specifications. The difference is packaging format: SN75160BDWR is supplied in Cut Tape (CT) & Digi-Reel format, while SN75ALS160DWR is supplied in Tape & Reel (TR) format. Selection depends on assembly line requirements and tape reel compatibility.

Q: Can SN65C1167ENSR replace SN75161BDWR in an existing design?

A: No, not without circuit redesign. SN65C1167ENSR operates under RS422/RS485 protocols rather than IEEE 488, has a 2/2 driver/receiver configuration instead of 8/8, operates in Full-duplex mode instead of Half-duplex, and uses a 16-SOIC package instead of 20-SOIC. This is a protocol migration option, not a drop-in replacement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SN75160BDWR, SN75ALS160DWR, and SN65C1167ENSR are all ROHS3 compliant, matching the compliance status of the SN75161BDWR.

Q: What is the inventory status of substitute parts?

A: SN75160BDWR has 1617 pcs in stock, and SN75ALS160DWR has 2900 pcs in stock. Both are Active products with ongoing manufacturing support, providing superior long-term availability compared to the Last Time Buy status of SN75161BDWR.

Q: Do the substitute parts have different operating temperature ranges?

A: SN75160BDWR and SN75ALS160DWR maintain the identical operating temperature range (0°C ~ 70°C) as SN75161BDWR. SN65C1167ENSR has an extended range (-40°C ~ 85°C), which is relevant only if protocol migration is acceptable.