NB6L16DR2 Equivalent & Substitute Parts

Part Overview

The NB6L16DR2 is a mixed signal translator IC from onsemi, designed for unidirectional signal translation with support for multiple input signal types (CML, LVCMOS, LVDS, LVNECL, LVPECL, LVTTL) and ECL differential output. Operating at 6Gbps data rate in an 8-SOIC package, this component is classified as obsolete. Due to its discontinued status, equivalent and substitute parts are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	NB6L16DR2
Manufacturer	onsemi
Translator Type	Mixed Signal
Channel Type	Unidirectional
Number of Circuits	1
Channels per Circuit	1
Input Signal Types	CML, LVCMOS, LVDS, LVNECL, LVPECL, LVTTL
Output Signal	ECL
Output Type	Differential
Data Rate	6Gbps
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the NB6L16DR2 is determined by the following critical parameters:

Translator Type: Mixed Signal
Channel Type: Unidirectional
Number of Circuits: 1
Channels per Circuit: 1
Output Type: Differential
Operating Temperature Range: -40°C ~ 85°C (TA)
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Equivalent (Same Base Product): NB6L16DR2G from onsemi maintains identical functional specifications with improved RoHS3 compliance and active product status at DiGi Electronics discontinuation.

Functional Equivalents (Alternative Manufacturers): Texas Instruments SN65CML100 series and Microchip Technology SY89325VMG-TR provide mixed signal unidirectional translation with differential output in compatible packages. These parts operate within the same temperature range and MSL rating, though with different data rate and output signal specifications.

Parameter Comparison

Parameter	NB6L16DR2	NB6L16DR2G	SN65CML100D	SN65CML100DGKR	SN65CML100DR	SY89325VMG-TR
Manufacturer	onsemi	onsemi	Texas Instruments	Texas Instruments	Texas Instruments	Microchip Technology
Translator Type	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal
Channel Type	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional
Number of Circuits	1	1	1	1	1	1
Channels per Circuit	1	1	1	1	1	1
Input Signal Types	CML, LVCMOS, LVDS, LVNECL, LVPECL, LVTTL	CML, LVCMOS, LVDS, LVNECL, LVPECL, LVTTL	CML, LVDS, LVPECL	CML, LVDS, LVPECL	CML, LVDS, LVPECL	CML, PECL, LVPECL
Output Signal	ECL	ECL	CML	CML	CML	LVDS
Output Type	Differential	Differential	Differential	Differential	Differential	Differential
Data Rate	6Gbps	6Gbps	1.5Gbps	1.5Gbps	1.5Gbps	1.5Gbps
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-TSSOP, 8-MSOP	8-SOIC	8-VFDFN, 8-MLF®
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Discontinued at DiGi Electronics	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

NB6L16DR2G (onsemi): This is the direct equivalent with identical electrical specifications. It provides the most straightforward substitution path, maintaining 6Gbps data rate and ECL output compatibility. The part achieves ROHS3 compliance and remains available through DiGi Electronics discontinuation status, making it suitable for designs requiring the original performance envelope.

SN65CML100D and SN65CML100DR (Texas Instruments): These parts are active products in 8-SOIC packaging with identical operating temperature range and MSL rating. They support CML, LVDS, and LVPECL input signals with CML differential output. The 1.5Gbps data rate is lower than the original 6Gbps specification. These are appropriate for applications where the lower data rate is acceptable and CML output is compatible with system requirements.

SN65CML100DGKR (Texas Instruments): This variant offers the same electrical performance as SN65CML100D and SN65CML100DR but in an 8-TSSOP/8-MSOP package with significantly higher inventory availability (35,300 pcs). Package selection depends on PCB layout constraints and assembly capabilities.

SY89325VMG-TR (Microchip Technology): This part provides mixed signal unidirectional translation with LVDS differential output at 1.5Gbps. It supports CML, PECL, and LVPECL inputs. The 8-MLF® package is smaller than SOIC, requiring different PCB layout considerations. This option is suitable for space-constrained designs where LVDS output is acceptable.

All substitute parts maintain the required operating temperature range (-40°C ~ 85°C) and MSL rating (1, Unlimited), ensuring compatibility with standard handling and storage procedures.

Frequently Asked Questions (FAQ)

Q: Can NB6L16DR2G be used as a direct replacement for NB6L16DR2?

A: Yes. NB6L16DR2G maintains identical functional specifications including 6Gbps data rate, ECL output, and 8-SOIC package. The primary difference is improved RoHS3 compliance status. Pin-for-pin compatibility and electrical performance are equivalent.

Q: What is the key difference between NB6L16DR2 and the Texas Instruments SN65CML100 series?

A: The primary difference is data rate: NB6L16DR2 operates at 6Gbps while SN65CML100 series operates at 1.5Gbps. Additionally, NB6L16DR2 outputs ECL signals, while SN65CML100 outputs CML signals. Input signal support also differs—NB6L16DR2 accepts LVCMOS, LVNECL, and LVTTL in addition to CML, LVDS, and LVPECL, while SN65CML100 series accepts only CML, LVDS, and LVPECL.

Q: Is the SY89325VMG-TR compatible with NB6L16DR2?

A: Functional compatibility depends on system requirements. Both are mixed signal unidirectional translators with differential output and identical operating temperature range. However, SY89325VMG-TR operates at 1.5Gbps (versus 6Gbps) and outputs LVDS (versus ECL). The 8-MLF® package differs from 8-SOIC, requiring PCB layout changes. Substitution is valid only if the receiving circuit accepts LVDS input at 1.5Gbps.

Q: Why do the Texas Instruments parts have lower data rates?

A: The SN65CML100 series is designed for CML signal translation at 1.5Gbps, which is a different application class than the 6Gbps ECL translation provided by NB6L16DR2. Selection between these parts depends on the actual data rate requirements of the application.

Q: What are the package differences among substitute parts?

A: NB6L16DR2, NB6L16DR2G, SN65CML100D, and SN65CML100DR use 8-SOIC packaging (0.154", 3.90mm width). SN65CML100DGKR uses 8-TSSOP/8-MSOP packaging (0.118", 3.00mm width), offering a smaller footprint. SY89325VMG-TR uses 8-MLF® (2x2) packaging, the smallest option. Package selection affects PCB layout, assembly process, and thermal characteristics.

Q: Are all substitute parts RoHS3 compliant?

A: NB6L16DR2 is RoHS non-compliant. All substitute parts listed (NB6L16DR2G, SN65CML100D, SN65CML100DGKR, SN65CML100DR, and SY89325VMG-TR) are ROHS3 compliant. This is relevant for designs subject to RoHS regulations.

Q: What is the inventory status of these parts?

A: NB6L16DR2 has 734 pcs available. NB6L16DR2G has 674 pcs. Among active products, SN65CML100DGKR has the highest inventory at 35,300 pcs, followed by SN65CML100D at 812 pcs, SY89325VMG-TR at 2,190 pcs, and SN65CML100DR at 2,000 pcs.

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