ISO1432DWR Equivalent & Substitute Parts

Part Overview

The ISO1432DWR is an isolated full-duplex RS422/RS485 transceiver manufactured by Texas Instruments, classified as an Interface component. This 1/1 transceiver IC operates across multiple supply voltage ranges (1.71V–1.89V, 2.25V–5.5V, 3V–5.5V) and supports data rates up to 12 Mbps with a receiver hysteresis of 30 mV. The device is housed in a 16-SOIC surface mount package and maintains Active product status. Substitute parts are identified when equivalent electrical specifications, mechanical packaging, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

ISO1432DWR

Texas InstrumentsIn Stock: 6010ISO1432DWR Datasheet

Current PartRFQ

ISO1432BDWR

Texas InstrumentsIn Stock: 15508ISO1432BDWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISO1432DWR are identified based on strict parametric equivalence across the following critical dimensions:

Electrical Specifications: Protocol (RS422/RS485), transceiver configuration (1/1 drivers/receivers), duplex mode (Full), receiver hysteresis (30 mV), data rate (12 Mbps), and supply voltage ranges (1.71V–1.89V, 2.25V–5.5V, 3V–5.5V) must be identical.

Mechanical Compatibility: Package type (16-SOIC), physical dimensions (0.295", 7.50mm Width), and mounting type (Surface Mount) must match exactly to ensure PCB layout compatibility.

Compliance & Status: Product status must be Active, RoHS3 compliance must be maintained, MSL rating (2, 1 Year) must be equivalent, and REACH status must be unaffected.

Manufacturer Consistency: All substitute parts are sourced from Texas Instruments to ensure design continuity and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

The ISO1432BDWR is a direct parametric equivalent to the ISO1432DWR. Both components share identical electrical specifications, mechanical packaging, and compliance certifications. Selection between these parts is determined by packaging format and inventory availability rather than functional capability.

The ISO1432DWR is supplied in standard packaging, while the ISO1432BDWR is available in Cut Tape (CT) and Digi-Reel® formats. Both maintain Active product status and full ROHS3 compliance with equivalent MSL ratings. The ISO1432BDWR currently maintains higher inventory levels (15,400 pieces) compared to the ISO1432DWR (5,950 pieces), which may influence procurement decisions based on lead time and supply chain requirements.

Both parts are suitable for direct substitution in RS422/RS485 isolated transceiver applications requiring 12 Mbps data rates, full-duplex operation, and multi-voltage supply compatibility across industrial temperature ranges (-40°C to 125°C).

Frequently Asked Questions (FAQ)

Q: Can the ISO1432BDWR replace the ISO1432DWR in an existing circuit design?

A: Yes. The ISO1432BDWR is a direct parametric equivalent with identical electrical specifications, package dimensions, and compliance certifications. No circuit modifications are required for substitution.

Q: What is the difference between ISO1432DWR and ISO1432BDWR?

A: The primary difference is packaging format. The ISO1432DWR uses standard packaging, while the ISO1432BDWR is supplied in Cut Tape (CT) and Digi-Reel® formats. All electrical and mechanical parameters are identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the ISO1432DWR and ISO1432BDWR operate across the identical temperature range of -40°C to 125°C (TA).

Q: Do both parts support the same supply voltage ranges?

A: Yes. Both parts support identical supply voltage ranges: 1.71V–1.89V, 2.25V–5.5V, and 3V–5.5V.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain identical compliance status: ROHS3 Compliant, REACH Unaffected, and MSL rating of 2 (1 Year).

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the 16-SOIC package with identical physical dimensions (0.295", 7.50mm Width) and surface mount configuration, enabling direct PCB layout compatibility.

Q: What data rate do these transceivers support?

A: Both the ISO1432DWR and ISO1432BDWR support data rates up to 12 Mbps for RS422/RS485 communication protocols.

Q: Is receiver hysteresis the same for both parts?

A: Yes. Both parts feature a receiver hysteresis of 30 mV, ensuring consistent signal detection thresholds.