FIN1047M LVDS 4/0 Driver IC Equivalent & Substitute Parts

Part Overview

The FIN1047M is a 4/0 Driver LVDS interface IC manufactured by onsemi in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The FIN1047M operates at 400 Mbps data rate with a 3V to 3.6V supply voltage range and -40°C to 85°C operating temperature specification. Identifying compatible substitutes ensures system reliability while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	FIN1047M Specification
Manufacturer	onsemi
Part Number	FIN1047M
Product Status	Obsolete
Type	Driver
Protocol	LVDS
Number of Drivers/Receivers	4/0
Data Rate	400 Mbps
Voltage - Supply	3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the FIN1047M are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

Protocol: LVDS (Low-Voltage Differential Signaling)
Number of Drivers/Receivers: 4/0 configuration
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Voltage - Supply: 3V ~ 3.6V range
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Secondary Compatibility Considerations:

Data Rate: 400 Mbps or higher
REACH and RoHS compliance status

Substitute parts are grouped into two categories: direct equivalents maintaining 400 Mbps data rate specification, and enhanced alternatives with higher data rate capability (630 Mbps) that remain electrically compatible within the specified voltage and temperature ranges.

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Drivers/Receivers	Data Rate	Voltage Supply	Operating Temp	Package	RoHS Status
FIN1047M	onsemi	Obsolete	LVDS	4/0	400 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	Not specified
FIN1047MX	onsemi	Active	LVDS	4/0	400 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant
DS90LV047ATM/NOPB	National Semiconductor	Active	LVDS	4/0	400 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	Not specified
SN65LVDS047D	Texas Instruments	Active	LVDS	4/0	400 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant
SN65LVDS047DG4	Texas Instruments	Discontinued at DiGi Electronics	LVDS	4/0	400 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant
SN65LVDS047DR	Texas Instruments	Active	LVDS	4/0	400 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant
SN65LVDS391D	Texas Instruments	Active	LVDS	4/0	630 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant
SN65LVDS391DR	Texas Instruments	Active	LVDS	4/0	630 Mbps	3V ~ 3.6V	-40°C ~ 85°C	16-SOIC	ROHS3 Compliant
SN65MLVD047AD	Texas Instruments	Active	LVDS, Multipoint	4/0	200 Mbps	3V ~ 3.6V	Not specified	16-SOIC	ROHS3 Compliant
SN65MLVD047ADR	Texas Instruments	Active	LVDS, Multipoint	4/0	200 Mbps	3V ~ 3.6V	Not specified	16-SOIC	ROHS3 Compliant

Engineering Selection Recommendations

Recommended Primary Substitutes (Direct Equivalents):

FIN1047MX (onsemi) and SN65LVDS047DR (Texas Instruments) are the preferred substitutes for the obsolete FIN1047M. Both maintain identical electrical specifications (400 Mbps, 3V to 3.6V supply, -40°C to 85°C operating range) and package configuration. FIN1047MX is an active product from the original manufacturer with ROHS3 compliance and Cut Tape/Digi-Reel packaging. SN65LVDS047DR is an active Texas Instruments product with ROHS3 compliance and Tape & Reel packaging, offering higher inventory availability (3432 units).

Alternative Substitutes (Enhanced Performance):

SN65LVDS391D and SN65LVDS391DR (Texas Instruments) provide enhanced data rate capability at 630 Mbps while maintaining all other electrical and mechanical compatibility parameters. These parts are suitable for applications where higher bandwidth is beneficial or required.

Substitutes with Protocol Variation:

SN65MLVD047AD and SN65MLVD047ADR (Texas Instruments) implement LVDS Multipoint protocol with reduced data rate (200 Mbps). These parts are compatible only in applications specifically designed for multipoint LVDS topology.

Compliance Considerations:

All recommended substitutes carry ROHS3 compliance certification. The original FIN1047M does not specify RoHS status. All substitute parts maintain REACH Unaffected status consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I directly replace FIN1047M with FIN1047MX?

A: Yes. FIN1047MX is the active production equivalent from onsemi. Both parts share identical electrical specifications (400 Mbps, 3V to 3.6V supply, -40°C to 85°C operating temperature) and 16-SOIC package configuration. The primary difference is product status (Active vs. Obsolete) and packaging format (Cut Tape/Digi-Reel vs. standard).

Q: What is the difference between SN65LVDS047D and SN65LVDS047DR?

A: Both parts are electrically identical 400 Mbps LVDS 4/0 drivers from Texas Instruments in 16-SOIC packages. The primary difference is packaging format: SN65LVDS047D is supplied in Tube packaging, while SN65LVDS047DR is supplied in Tape & Reel (TR) format. Selection depends on production volume and handling requirements.

Q: Can I use SN65LVDS391D as a substitute for FIN1047M?

A: Yes, with the understanding that SN65LVDS391D operates at 630 Mbps data rate compared to the FIN1047M's 400 Mbps specification. All other electrical parameters (3V to 3.6V supply, -40°C to 85°C operating temperature) and mechanical specifications (16-SOIC package) are compatible. The higher data rate capability does not create incompatibility in applications designed for 400 Mbps operation.

Q: Are the multipoint LVDS variants (SN65MLVD047AD/ADR) compatible substitutes?

A: These parts are mechanically compatible (16-SOIC package, 3V to 3.6V supply) but implement a different protocol variant (LVDS Multipoint) and operate at reduced data rate (200 Mbps). They are suitable only for applications specifically designed for multipoint LVDS topology. Standard point-to-point LVDS applications require the standard LVDS variants.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel (FIN1047MX), Tube (SN65LVDS047D, SN65MLVD047AD), Tape & Reel (TR) (SN65LVDS047DR, SN65MLVD047ADR), and unspecified formats (DS90LV047ATM/NOPB, SN65LVDS391D, SN65LVDS391DR). Selection depends on production volume, automated assembly requirements, and inventory management practices.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts carry ROHS3 compliance certification. The original FIN1047M does not specify RoHS status in the provided data. All parts maintain REACH Unaffected status.

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