Equivalent & Substitute Parts for 85322AMLF

Part Overview

The 85322AMLF is a mixed signal translator IC manufactured by Renesas Electronics Corporation, designed to convert unidirectional signals from LVCMOS/LVTTL input levels to LVPECL differential output levels in an 8-SOIC package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. Substitute parts must maintain identical functional specifications, package compatibility, and signal translation characteristics to ensure direct replacement capability.

Key Parameters

Parameter	Specification
Translator Type	Mixed Signal
Channel Type	Unidirectional
Number of Circuits	1
Channels per Circuit	2
Input Signal	LVCMOS, LVTTL
Output Signal	LVPECL
Output Type	Differential
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 85322AMLF are qualified based on the following critical parameters that determine functional equivalence:

Translator Type: Mixed Signal
Channel Type: Unidirectional
Number of Circuits: 1
Channels per Circuit: 2
Input Signal Compatibility: LVCMOS, LVTTL
Output Signal: LVPECL
Output Type: Differential
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
RoHS3 Compliance

All substitute parts listed maintain these core specifications, ensuring electrical and mechanical compatibility with the original 85322AMLF design. Variations in operating temperature range and product status (active vs. obsolete) do not affect functional substitution capability.

Parameter Comparison

Parameter	85322AMLF (Renesas)	MC100EPT22DG (onsemi)	MC100LVELT22DG (onsemi)	SN65EPT22D (TI)	SN65EPT22DR (TI)
Translator Type	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal
Channel Type	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional
Number of Circuits	1	1	1	1	1
Channels per Circuit	2	2	2	2	2
Input Signal	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL
Output Signal	LVPECL	LVPECL	LVPECL	LVPECL	LVPECL
Output Type	Differential	Differential	Differential	Differential	Differential
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and MSL Level 1 rating, providing long-term availability and environmental regulatory compliance. The primary distinction between the 85322AMLF and its substitutes is product status: the original part is obsolete, while all alternatives are actively manufactured and supported.

The substitute parts from Texas Instruments (SN65EPT22D, SN65EPT22DR) and onsemi (MC100EPT22DG, MC100LVELT22DG) are functionally equivalent and pin-compatible. Selection among these alternatives should be based on procurement availability, lead time, and existing supply chain relationships, as all meet the electrical and mechanical requirements for direct substitution.

The extended operating temperature range (-40°C to 85°C) of the active substitutes provides enhanced thermal performance compared to the original part's 0°C to 70°C specification, offering additional design margin in temperature-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the MC100EPT22DG directly replace the 85322AMLF in existing designs?

A: Yes. The MC100EPT22DG maintains identical translator type, channel configuration, signal levels, and 8-SOIC package specifications. No PCB modifications are required for direct substitution.

Q: What is the primary reason for substituting the 85322AMLF?

A: The 85322AMLF is classified as obsolete. Active substitute parts ensure continued availability, manufacturing support, and compliance with current regulatory standards.

Q: Are there differences in operating temperature ranges between the original and substitute parts?

A: Yes. The 85322AMLF operates from 0°C to 70°C, while all substitute parts operate from -40°C to 85°C. This extended range in substitutes provides additional thermal margin and is not a limitation for replacement.

Q: Do all substitute parts use the same 8-SOIC package?

A: Yes. All listed substitutes use the 8-SOIC (0.154", 3.90mm Width) package, ensuring mechanical compatibility and identical PCB footprints.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts carry ROHS3 compliance certification and MSL Level 1 rating, meeting environmental and moisture sensitivity requirements.

Q: Which manufacturer should I select for procurement?

A: Selection among Texas Instruments (SN65EPT22D, SN65EPT22DR), onsemi (MC100EPT22DG, MC100LVELT22DG) should be based on availability, lead time, and existing supplier relationships. All are functionally equivalent.

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