SY100ELT22ZI Mixed Signal Translator Equivalent & Substitute Parts

Part Overview

The SY100ELT22ZI is a mixed signal translator IC manufactured by Microchip Technology, designed to convert unidirectional logic signals between LVTTL input and PECL output levels. This component operates as a 1-circuit, 2-channel differential output translator in an 8-SOIC surface mount package.

The SY100ELT22ZI is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this translator architecture.

Substiute Parts

SY100ELT22ZI

Microchip TechnologyIn Stock: 2022SY100ELT22ZI Datasheet

Current PartRFQ

SY100ELT22ZG

Microchip TechnologyIn Stock: 4817SY100ELT22ZG Datasheet

DirectRFQ

MC100ELT22DG

onsemiIn Stock: 5090MC100ELT22DG Datasheet

MFR RecommendedRFQ

SN65LVELT22D

Texas InstrumentsIn Stock: 3008SN65LVELT22D Datasheet

MFR RecommendedRFQ

SN65LVELT22DR

Texas InstrumentsIn Stock: 7379SN65LVELT22DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SY100ELT22ZI is determined by strict alignment of the following critical parameters:

• Translator Type: Mixed Signal
• Channel Configuration: Unidirectional, 1 circuit, 2 channels per circuit
• Signal Levels: Input and output signal compatibility
• Package: 8-SOIC form factor with identical pin pitch and dimensions
• Operating Temperature: -40°C to 85°C range
• Output Type: Differential output architecture

Substitute parts must maintain identical mechanical compatibility (8-SOIC package) and functional equivalence (unidirectional, 2-channel mixed signal translation). Signal level variations (LVTTL to PECL versus LVTTL to LVPECL) represent functional differences that must be evaluated against system requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SY100ELT22ZG

The SY100ELT22ZG is the direct equivalent from Microchip Technology. It maintains identical electrical specifications (LVTTL to PECL translation) and mechanical compatibility. The SY100ELT22ZG holds Active product status and is ROHS3 compliant, providing superior supply chain availability and regulatory compliance compared to the obsolete SY100ELT22ZI.

Secondary Substitutes: SN65LVELT22D and SN65LVELT22DR

Both Texas Instruments parts (SN65LVELT22D and SN65LVELT22DR) provide unidirectional 2-channel mixed signal translation in 8-SOIC packages with Active product status and ROHS3 compliance. These parts translate LVTTL input to LVPECL output, representing a functional variation from the PECL output of the main part. System-level signal integrity analysis is required to determine compatibility with LVPECL output levels.

Alternative: MC100ELT22DG

The MC100ELT22DG from onsemi maintains the LVTTL-to-PECL output specification and 8-SOIC package. However, this part is classified as Obsolete, limiting its suitability as a long-term replacement despite ROHS3 compliance.

Compliance Consideration

The SY100ELT22ZI is RoHS non-compliant. All substitute parts listed (SY100ELT22ZG, MC100ELT22DG, SN65LVELT22D, SN65LVELT22DR) are ROHS3 compliant, supporting modern supply chain and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SN65LVELT22D or SN65LVELT22DR be used as direct replacements for SY100ELT22ZI?

A: These Texas Instruments parts are mechanically and functionally compatible in terms of unidirectional 2-channel mixed signal translation in 8-SOIC packages. However, they output LVPECL signals rather than PECL. System designs must accommodate the lower output voltage levels of LVPECL. Both parts are Active and ROHS3 compliant.

Q: What is the difference between SY100ELT22ZG and SY100ELT22ZI?

A: Both parts are identical in electrical and mechanical specifications. The primary differences are product status (SY100ELT22ZG is Active; SY100ELT22ZI is Obsolete) and RoHS compliance (SY100ELT22ZG is ROHS3 compliant; SY100ELT22ZI is non-compliant). SY100ELT22ZG is the recommended replacement.

Q: Are all substitute parts available in the same packaging options?

A: The SY100ELT22ZG is available in Tube packaging. The SN65LVELT22DR is available in Cut Tape (CT) & Digi-Reel packaging. The SN65LVELT22D is available in Tube packaging. All parts use the 8-SOIC surface mount package with identical dimensions (0.154", 3.90mm Width).

Q: What is the significance of the output signal difference (PECL vs. LVPECL)?

A: PECL (Positive Emitter Coupled Logic) and LVPECL (Low Voltage PECL) differ in output voltage levels. PECL operates at higher voltage levels, while LVPECL operates at reduced voltage levels. System designs must verify that downstream components can accept the specific output signal level of the selected substitute part.

Q: Why is RoHS compliance important for this part?

A: ROHS3 compliance ensures the part meets current environmental and regulatory standards for hazardous substance restrictions. Modern supply chains and manufacturing environments increasingly require ROHS3 compliant components. The SY100ELT22ZI's non-compliance may create sourcing and regulatory challenges in new designs.

Q: Can MC100ELT22DG be used despite its Obsolete status?

A: MC100ELT22DG maintains LVTTL-to-PECL output compatibility and 8-SOIC package equivalence. However, its Obsolete classification indicates limited future availability. For new designs or long-term production, SY100ELT22ZG or the Texas Instruments alternatives are preferred due to Active product status.