SY100EPT23LZC TR Equivalent & Substitute Parts

Part Overview

The SY100EPT23LZC TR is a mixed signal translator IC manufactured by Microchip Technology, designed to convert unidirectional signals from LVPECL input to LVTTL output. This 8-SOIC surface mount component operates across the 0°C to 85°C temperature range and is classified as obsolete. Due to its obsolete status and limited operating temperature range, identifying active equivalent parts is essential for new designs and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	SY100EPT23LZC TR
Manufacturer	Microchip Technology
Product Status	Obsolete
Translator Type	Mixed Signal
Channel Type	Unidirectional
Number of Circuits	1
Channels per Circuit	2
Input Signal	LVPECL
Output Signal	LVTTL
Output Type	Non-Inverted
Operating Temperature	0°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Translator Type: Must be Mixed Signal
Channel Type: Must be Unidirectional
Number of Circuits: Must be 1
Channels per Circuit: Must be 2
Output Type: Must be Non-Inverted
Package / Case: Must be 8-SOIC or compatible package
Mounting Type: Must be Surface Mount
MSL Rating: Must be 1 (Unlimited)

The substitute parts listed below meet these core electrical and mechanical requirements. Differences in input signal compatibility, output signal range, operating temperature, product status, and RoHS compliance are noted in the parameter comparison table.

Parameter Comparison

Parameter	SY100EPT23LZC TR (Main)	SY100EPT23LZG-TR	MC100EPT23DG	MC100EPT23DR2G	SN65ELT23D	SN65ELT23DGK	SN65ELT23DR
Manufacturer	Microchip Technology	Microchip Technology	onsemi	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Translator Type	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal	Mixed Signal
Channel Type	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional
Number of Circuits	1	1	1	1	1	1	1
Channels per Circuit	2	2	2	2	2	2	2
Input Signal	LVPECL	LVPECL	CML, LVDS, LVPECL	CML, LVDS, LVPECL	PECL	PECL	PECL
Output Signal	LVTTL	LVTTL	LVTTL, LVCMOS	LVTTL, LVCMOS	TTL	TTL	TTL
Output Type	Non-Inverted	Non-Inverted	Non-Inverted	Non-Inverted	Non-Inverted	Non-Inverted	Non-Inverted
Operating Temperature	0°C ~ 85°C	-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 (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)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tube	Tube	Tape & Reel (TR)
RoHS Status	RoHS non-compliant	ROHS3 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)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance, addressing the obsolescence and RoHS non-compliance status of the original SY100EPT23LZC TR.

Microchip Technology Series (SY100EPT23LZG-TR): Direct manufacturer upgrade within the same product line. Maintains identical electrical specifications while extending operating temperature range to -40°C ~ 85°C and achieving ROHS3 compliance. Recommended for designs requiring minimal qualification effort.

onsemi Series (MC100EPT23DG, MC100EPT23DR2G): Functionally equivalent with expanded input signal compatibility (CML, LVDS, LVPECL) and dual output signal support (LVTTL, LVCMOS). Extended operating temperature range and ROHS3 compliance. MC100EPT23DR2G is packaged in Tape & Reel format; MC100EPT23DG is supplied in Tube packaging.

Texas Instruments Series (SN65ELT23D, SN65ELT23DGK, SN65ELT23DR): Functionally equivalent translators with PECL input and TTL output. Extended operating temperature range and ROHS3 compliance. SN65ELT23DGK uses 8-TSSOP package (0.118", 3.00mm Width), requiring PCB layout modification. SN65ELT23D and SN65ELT23DR maintain 8-SOIC package compatibility.

Frequently Asked Questions (FAQ)

Q: Can SN65ELT23DGK be used as a direct replacement?

A: SN65ELT23DGK uses an 8-TSSOP package (0.118", 3.00mm Width) instead of the 8-SOIC package (0.154", 3.90mm Width) of the original part. PCB footprint modification is required. Other SN65ELT23 variants (SN65ELT23D, SN65ELT23DR) maintain 8-SOIC package compatibility.

Q: What is the difference between LVPECL and PECL input signals?

A: LVPECL (Low Voltage PECL) and PECL (PECL) are related signal standards. The onsemi MC100EPT23 series and Texas Instruments SN65ELT23 series accept PECL-level inputs, which are compatible with LVPECL sources used in the original part.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, addressing the RoHS non-compliance of the original SY100EPT23LZC TR.

Q: What is the operating temperature difference?

A: The original SY100EPT23LZC TR operates from 0°C to 85°C. All substitute parts extend the lower operating temperature limit to -40°C, providing broader environmental coverage.

Q: Which substitute offers the closest electrical match?

A: SY100EPT23LZG-TR is the direct Microchip Technology upgrade, maintaining identical input/output signal specifications (LVPECL to LVTTL) while improving product status, temperature range, and RoHS compliance.

Q: Can I use MC100EPT23DG or MC100EPT23DR2G if my design only requires LVPECL to LVTTL conversion?

A: Yes. Both onsemi parts support LVPECL input and LVTTL output. The expanded input signal compatibility (CML, LVDS) and dual output support (LVTTL, LVCMOS) provide additional flexibility without affecting existing LVPECL-to-LVTTL functionality.

Q: What packaging formats are available?

A: Tape & Reel (TR) packaging is available for SY100EPT23LZG-TR, MC100EPT23DR2G, and SN65ELT23DR. Tube packaging is available for MC100EPT23DG, SN65ELT23D, and SN65ELT23DGK.

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