FIN1531MTC Equivalent & Substitute Parts

Part Overview

The FIN1531MTC is a 4/0 Driver LVDS interface IC manufactured by onsemi in a 16-TSSOP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The FIN1531MTC operates at 400 Mbps data rate with a supply voltage range of 4.5V to 5.5V and supports operating temperatures from -40°C to 85°C. Substitution is required when original inventory is depleted or when design flexibility permits package or protocol variations within compatible electrical specifications.

Substiute Parts

FIN1531MTC

onsemiIn Stock: 1186FIN1531MTC Datasheet

Current PartRFQ

AM26LS31CDBR

Texas InstrumentsIn Stock: 3315AM26LS31CDBR Datasheet

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DS90C031BTM/NOPB

Texas InstrumentsIn Stock: 1532DS90C031BTM/NOPB Datasheet

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DS90C031TM/NOPB

Texas InstrumentsIn Stock: 3254DS90C031TM/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the FIN1531MTC is determined by the following critical parameters:

Primary Substitution Criteria:

• Driver/Receiver configuration: 4/0 (4 drivers, 0 receivers)
• Interface protocol: LVDS compatibility
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Surface mount technology
• 16-pin package format

Substitute Parts Identified:

1. DS90C031BTM/NOPB and DS90C031TM/NOPB (Texas Instruments) – Direct protocol match with LVDS, identical electrical specifications, and equivalent 4/0 driver configuration. Package variation: 16-SOIC instead of 16-TSSOP. Product status: Active.

2. AM26LS31CDBR (Texas Instruments) – Equivalent 4/0 driver configuration with 16-pin surface mount package (16-SSOP). Protocol differs (RS422/RS485 instead of LVDS) but maintains compatible supply voltage range and operating temperature. Product status: Obsolete.

Parameter Comparison

Engineering Selection Recommendations

Preferred Substitutes: DS90C031BTM/NOPB and DS90C031TM/NOPB

These Texas Instruments parts provide the closest functional equivalence to the FIN1531MTC. Both maintain LVDS protocol compatibility, identical electrical specifications (4.5V ~ 5.5V supply, -40°C ~ 85°C operating range), and 4/0 driver configuration. Both parts carry Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The primary design consideration is package transition from 16-TSSOP to 16-SOIC, which requires PCB layout modification but presents no electrical incompatibility.

Secondary Substitute: AM26LS31CDBR

This part maintains 4/0 driver configuration and surface mount technology with 16-SSOP packaging. However, protocol differs (RS422/RS485 versus LVDS), and operating temperature range is reduced (0°C ~ 70°C versus -40°C ~ 85°C). Supply voltage range is narrower (4.75V ~ 5.25V). This substitute is suitable only when application requirements permit protocol change and temperature range reduction. Product status is Obsolete, limiting long-term procurement viability.

Frequently Asked Questions (FAQ)

Q: Can DS90C031BTM/NOPB or DS90C031TM/NOPB be used as direct replacements for FIN1531MTC?

A: Both DS90C031 variants provide electrical and functional equivalence with identical LVDS protocol, supply voltage range, and operating temperature specifications. The primary design change is package format: 16-SOIC (3.90mm width) replaces 16-TSSOP (4.40mm width). PCB layout modification is required. Both parts are Active status with ROHS3 compliance.

Q: What are the key differences between DS90C031BTM/NOPB and DS90C031TM/NOPB?

A: Both parts are functionally identical with matching electrical specifications and LVDS protocol. The difference is packaging format: BTM/NOPB is supplied in Tube packaging, while TM/NOPB is also supplied in Tube packaging. Selection depends on procurement and handling requirements.

Q: Is AM26LS31CDBR a suitable substitute?

A: AM26LS31CDBR maintains 4/0 driver configuration and surface mount technology but uses RS422/RS485 protocol instead of LVDS. Operating temperature range is reduced to 0°C ~ 70°C, and supply voltage range narrows to 4.75V ~ 5.25V. This substitute is applicable only when application design permits protocol change and temperature range reduction.

Q: What packaging considerations apply when substituting FIN1531MTC?

A: FIN1531MTC uses 16-TSSOP (0.173", 4.40mm width). Substitute parts use either 16-SOIC (0.154", 3.90mm width) or 16-SSOP (0.209", 5.30mm width). All are surface mount formats with 16-pin configurations. PCB footprint and layout modifications are necessary for any package transition.

Q: Are all substitute parts RoHS compliant?

A: DS90C031BTM/NOPB, DS90C031TM/NOPB, and AM26LS31CDBR are all ROHS3 compliant. FIN1531MTC RoHS status is not specified in available documentation.

Q: What is the product status impact on substitution decisions?

A: FIN1531MTC and AM26LS31CDBR are both Obsolete, indicating limited future availability. DS90C031BTM/NOPB and DS90C031TM/NOPB are Active status, ensuring continued manufacturing and procurement support. For new designs or long-term production, Active status parts are preferred.