SY89322VMI-TR Mixed Signal Translator Equivalent & Substitute Parts

Part Overview

The SY89322VMI-TR is a mixed signal translator manufactured by Microchip Technology, designed to convert unidirectional logic signals from LVCMOS/LVTTL input levels to LVPECL differential output levels. This device integrates 1 circuit with 2 channels in an 8-MLF® (2x2) surface mount package. The SY89322VMI-TR is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SY89322VMI-TR
Manufacturer	Microchip Technology
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
Operating Temperature Range	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-VFDFN Exposed Pad, 8-MLF®
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitute parts for the SY89322VMI-TR are qualified based on the following electrical and mechanical parameters:

Core Functional Parameters:

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
Operating Temperature Range: -40°C ~ 85°C (TA)

Mechanical Parameters:

Mounting Type: Surface Mount
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Category 1: Direct Microchip Technology Equivalent The SY89322VMG-TR maintains identical electrical specifications and operating characteristics as the SY89322VMI-TR, with the primary difference being active product status and improved RoHS3 compliance. This part uses the same 8-MLF® package and is the direct replacement within the Microchip SY89 series.

Category 2: Cross-Manufacturer Equivalents Parts from onsemi (MC100EPT22DG, MC100EPT22DTR2G, MC100LVELT22DG, MC100LVELT22DR2G) and Texas Instruments (SN65EPT22D, SN65EPT22DGK, SN65EPT22DGKR) provide functional equivalence with identical electrical specifications. These parts differ in package form factors (8-SOIC, 8-TSSOP, 8-VSSOP) and are available in active production status with RoHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Translator Type	Channels	Input Signal	Output Signal	Operating Temp	Package	MSL	RoHS Status	Product Status
SY89322VMI-TR	Microchip	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-MLF®	1	RoHS non-compliant	Discontinued
SY89322VMG-TR	Microchip	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-MLF®	1	RoHS3 Compliant	Active
MC100EPT22DG	onsemi	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-SOIC	1	RoHS3 Compliant	Active
MC100EPT22DTR2G	onsemi	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-TSSOP	3	RoHS3 Compliant	Active
MC100LVELT22DG	onsemi	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-SOIC	1	RoHS3 Compliant	Active
MC100LVELT22DR2G	onsemi	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-SOIC	1	RoHS3 Compliant	Active
SN65EPT22D	Texas Instruments	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-SOIC	1	RoHS3 Compliant	Active
SN65EPT22DGK	Texas Instruments	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-VSSOP	1	RoHS3 Compliant	Active
SN65EPT22DGKR	Texas Instruments	Mixed Signal	2	LVCMOS, LVTTL	LVPECL	-40°C ~ 85°C	8-VSSOP	1	RoHS3 Compliant	Active

Engineering Selection Recommendations

Primary Recommendation: SY89322VMG-TR The SY89322VMG-TR is the direct equivalent replacement for the discontinued SY89322VMI-TR. It maintains identical electrical specifications, operating temperature range, and package form factor (8-MLF®). The primary advantage is active product status with RoHS3 compliance, ensuring long-term availability and regulatory alignment. This part is recommended for designs requiring minimal PCB layout modifications.

Secondary Recommendations: onsemi MC100 Series The MC100EPT22DG, MC100EPT22DTR2G, MC100LVELT22DG, and MC100LVELT22DR2G provide functional equivalence with identical electrical performance. These parts are available in 8-SOIC and 8-TSSOP packages. The MC100LVELT22DR2G offers the highest inventory availability (84,777 pcs) and is suitable for high-volume applications. Package changes require PCB layout modifications.

Tertiary Recommendations: Texas Instruments SN65 Series The SN65EPT22D, SN65EPT22DGK, and SN65EPT22DGKR provide functional equivalence with active product status and RoHS3 compliance. The SN65EPT22D is available in 8-SOIC package with the largest inventory (211,861 pcs). The SN65EPT22DGK and SN65EPT22DGKR are available in 8-VSSOP package, offering smaller footprint options. Package changes require PCB layout modifications.

Compliance Considerations: All recommended substitute parts are RoHS3 compliant, addressing regulatory requirements that the original SY89322VMI-TR does not meet. All parts maintain MSL 1 (Unlimited) moisture sensitivity except MC100EPT22DTR2G, which has MSL 3 (168 Hours).

Frequently Asked Questions (FAQ)

Q: Can I directly replace SY89322VMI-TR with SY89322VMG-TR without PCB modifications? A: Yes. The SY89322VMG-TR uses the identical 8-MLF® package and pinout as the SY89322VMI-TR. No PCB layout changes are required. This is the recommended direct replacement.

Q: What are the package differences between substitute parts? A: The original SY89322VMI-TR uses 8-MLF® (2x2) package. Substitute parts are available in three package options: 8-SOIC (0.154", 3.90mm Width), 8-TSSOP (0.118", 3.00mm Width), and 8-VSSOP (0.118", 3.00mm Width). Package selection affects PCB footprint and requires layout modifications.

Q: Are all substitute parts electrically equivalent? A: Yes. All listed substitute parts maintain identical electrical specifications: unidirectional mixed signal translation, 1 circuit with 2 channels, LVCMOS/LVTTL input to LVPECL differential output, and -40°C ~ 85°C operating temperature range.

Q: What is the difference between MC100EPT22DG and MC100LVELT22DG? A: Both parts provide identical electrical functionality and are available in 8-SOIC package. The primary difference is series designation (100EPT vs. 100LVELT). Both are functionally equivalent for the SY89322VMI-TR replacement.

Q: Does MC100EPT22DTR2G have different moisture sensitivity requirements? A: Yes. MC100EPT22DTR2G has MSL 3 (168 Hours) compared to MSL 1 (Unlimited) for most other substitutes. This requires stricter moisture control during storage and handling. For applications with standard moisture management, MSL 1 parts are preferred.

Q: Which substitute part has the highest inventory availability? A: MC100LVELT22DR2G has the highest inventory with 84,777 pcs available. SN65EPT22D follows with 211,861 pcs. Both are suitable for high-volume production requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are RoHS3 compliant. The original SY89322VMI-TR is RoHS non-compliant, making RoHS3 compliant substitutes necessary for regulatory alignment.

Q: Can I use SN65EPT22DGK in place of SN65EPT22D? A: Both parts provide identical electrical functionality but differ in package form factor. SN65EPT22DGK uses 8-VSSOP (smaller footprint), while SN65EPT22D uses 8-SOIC. Package selection depends on PCB space constraints and layout requirements.

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