SN65EPT22DR Equivalent & Substitute Parts

Part Overview

The SN65EPT22DR is a mixed signal translator IC manufactured by Texas Instruments, designed for unidirectional signal translation between LVCMOS/LVTTL input signals and LVPECL differential output signals. This 8-SOIC surface mount device operates across the industrial temperature range of -40°C to 85°C and is currently in active production status.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from multiple qualified sources. The parts listed below maintain electrical and mechanical compatibility with the SN65EPT22DR within the specified parameter constraints.

Key Parameters

Parameter	Value
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)
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

Substitution eligibility for the SN65EPT22DR is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

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
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Operating Temperature Consideration: The SN65EPT22DR operates at -40°C ~ 85°C. The substitute part 85322AMLF operates at 0°C ~ 70°C, representing a narrower temperature range. All other substitute parts (MC100EPT22DG, MC100EPT22DR2G, SY100EPT22VZG, SY100EPT22VZG-TR) maintain the full -40°C ~ 85°C range.

All listed substitute parts meet the electrical and mechanical compatibility requirements. Selection among substitutes should account for operating temperature requirements, product status, and packaging format (Tube vs. Tape & Reel).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Operating Temperature	Package Format	Inventory Status
SN65EPT22DR	Texas Instruments	Active	-40°C ~ 85°C	-	1180 Pcs
85322AMLF	Renesas Electronics Corporation	Obsolete	0°C ~ 70°C	Tube	1415 Pcs
MC100EPT22DG	onsemi	Active	-40°C ~ 85°C	Tube	1346 Pcs
MC100EPT22DR2G	onsemi	Active	-40°C ~ 85°C	Tape & Reel (TR)	16353 Pcs
SY100EPT22VZG	Microchip Technology	Active	-40°C ~ 85°C	Tube	1331 Pcs
SY100EPT22VZG-TR	Microchip Technology	Active	-40°C ~ 85°C	Tape & Reel (TR)	1816 Pcs

Engineering Selection Recommendations

Primary Substitutes (Recommended): MC100EPT22DG, MC100EPT22DR2G, SY100EPT22VZG, and SY100EPT22VZG-TR are all active production parts from established manufacturers (onsemi and Microchip Technology) with full -40°C to 85°C operating temperature coverage. These parts are suitable for applications requiring the complete industrial temperature range.

Secondary Substitute (Conditional): 85322AMLF is classified as obsolete and operates within a narrower temperature range (0°C ~ 70°C). This part is suitable only for applications with operating temperature requirements within 0°C to 70°C and where long-term availability is not a concern.

Packaging Considerations: MC100EPT22DR2G and SY100EPT22VZG-TR are supplied in Tape & Reel format, suitable for high-volume automated assembly. MC100EPT22DG and SY100EPT22VZG are supplied in Tube format, appropriate for lower-volume or manual assembly operations.

All substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can 85322AMLF be used as a direct replacement for SN65EPT22DR? A: 85322AMLF is electrically and mechanically compatible but operates at 0°C ~ 70°C versus the SN65EPT22DR's -40°C ~ 85°C range. Use only if your application operates within 0°C to 70°C. Additionally, 85322AMLF is obsolete; future availability is not guaranteed.

Q: What is the difference between MC100EPT22DG and MC100EPT22DR2G? A: Both parts are functionally identical. The primary difference is packaging format: MC100EPT22DG is supplied in Tube format, while MC100EPT22DR2G is supplied in Tape & Reel (TR) format. Select based on assembly process requirements and volume.

Q: Are all substitute parts RoHS compliant? A: Yes, all listed substitute parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the SN65EPT22DR specifications.

Q: Which substitute offers the best long-term availability? A: MC100EPT22DR2G (onsemi, Tape & Reel) and SY100EPT22VZG-TR (Microchip Technology, Tape & Reel) are both active production parts with the highest inventory levels (16353 Pcs and 1816 Pcs respectively) and full industrial temperature range support.

Q: Can I mix different substitute parts in the same design? A: Yes. All substitute parts maintain identical electrical specifications, package dimensions, and pinout compatibility. Mixed sourcing is permissible from a technical standpoint, though single-source qualification is recommended for production consistency.

Q: What compliance certifications apply to all parts? A: All parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. ECCN classifications vary by manufacturer but do not affect substitution eligibility.

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