ISO3088DW Equivalent & Substitute Parts

Part Overview

The ISO3088DW is a 2/2 Transceiver with isolated half-duplex RS422/RS485 interface in a 16-SOIC surface mount package, manufactured by Texas Instruments. This component is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring isolated RS422/RS485 communication interfaces.

Substiute Parts

ISO3088DW

Texas InstrumentsIn Stock: 16862ISO3088DW Datasheet

Current PartRFQ

ISO3088DWR

Texas InstrumentsIn Stock: 39231ISO3088DWR Datasheet

MFR RecommendedRFQ

MAX14949EWE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3442MAX14949EWE+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ISO3088DW is determined by the following critical parameters:

Primary Substitution Criteria:

• Protocol compatibility: RS422/RS485 interface
• Electrical configuration: 2/2 driver/receiver topology
• Duplex mode: Half-duplex operation
• Package form factor: 16-SOIC surface mount
• Supply voltage range: 3.15V ~ 5.5V or 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Data rate capability: minimum 20 Mbps

Identified Substitute Parts:

1. ISO3088DWR (Texas Instruments) – Direct manufacturer equivalent with identical electrical and mechanical specifications, differentiated only by packaging format (Cut Tape & Digi-Reel vs. Tube).

2. MAX14949EWE+T (Analog Devices Inc./Maxim Integrated) – Functional substitute with RS422/RS485 capability in 16-SOIC package. Operates within compatible supply voltage and temperature ranges. Differs in isolation technology (capacitive coupling) and data rate specification (500 kbps vs. 20 Mbps).

Parameter Comparison

Engineering Selection Recommendations

ISO3088DWR is the primary recommended substitute. As a Texas Instruments product with identical electrical specifications and the same 16-SOIC package, it provides direct functional equivalence to the ISO3088DW. The only distinction is packaging format (Cut Tape & Digi-Reel vs. Tube). Both parts maintain ROHS3 compliance and identical operating parameters. ISO3088DWR carries Active product status, ensuring continued availability and support.

MAX14949EWE+T is a secondary alternative for applications where the lower data rate specification (500 kbps) is acceptable. This part offers improved moisture sensitivity (MSL 1 vs. MSL 2) and maintains compatible supply voltage and temperature ranges. The channel configuration differs (3 channels with 2/1 input/output split vs. 2/2 symmetric configuration), requiring circuit-level evaluation for compatibility. Both substitute parts are ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can ISO3088DWR be used as a direct replacement for ISO3088DW?

A: Yes. ISO3088DWR is electrically and mechanically identical to ISO3088DW. The parts differ only in packaging format (Cut Tape & Digi-Reel vs. Tube). Both maintain the same 16-SOIC form factor, supply voltage range (3.15V ~ 5.5V, 4.5V ~ 5.5V), operating temperature (-40°C ~ 85°C), and data rate (20 Mbps).

Q: What are the key differences between ISO3088DW and MAX14949EWE+T?

A: Both parts support RS422/RS485 protocols in 16-SOIC packages with compatible supply voltages and operating temperatures. The primary differences are: MAX14949EWE+T specifies a lower data rate (500 kbps vs. 20 Mbps), uses capacitive coupling isolation technology, and features a 3-channel configuration with 2/1 input/output split rather than 2/2 symmetric drivers/receivers. MAX14949EWE+T offers superior moisture sensitivity (MSL 1 vs. MSL 2).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ISO3088DWR and MAX14949EWE+T are both ROHS3 compliant, matching the compliance status of the ISO3088DW.

Q: What is the impact of the data rate difference between ISO3088DW (20 Mbps) and MAX14949EWE+T (500 kbps)?

A: The MAX14949EWE+T operates at a significantly lower maximum data rate. Applications requiring data transmission above 500 kbps must use ISO3088DW or ISO3088DWR to maintain specified performance.

Q: Does package format affect electrical performance?

A: No. The difference between ISO3088DW (Tube packaging) and ISO3088DWR (Cut Tape & Digi-Reel packaging) is logistical only. Both parts are identical 16-SOIC components with identical electrical characteristics and performance.

Q: Are there supply chain considerations for these substitutes?

A: ISO3088DW is Last Time Buy status. ISO3088DWR and MAX14949EWE+T are both Active products with higher inventory levels, providing improved long-term availability for new designs and production continuity.