SY100E111JC Equivalent & Substitute Parts

Part Overview

The SY100E111JC is a Clock Fanout Buffer (Distribution) IC manufactured by Microchip Technology, designed for 1:9 clock distribution applications with differential PECL input and output. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring this clock distribution topology.

Substiute Parts

SY100E111JC

Microchip TechnologyIn Stock: 3433SY100E111JC Datasheet

Current PartRFQ

MC100E111FNG

onsemiIn Stock: 36191MC100E111FNG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SY100E111JC is determined by the following critical parameters:

• Fanout Ratio: 1:9 input-to-output configuration
• Differential Signaling: Differential input and output capability
• Signal Standard: PECL or ECL compatibility
• Package: 28-LCC (J-Lead) surface mount form factor
• Supply Voltage Range: Compatibility within 4.2V to 5.7V envelope
• Operating Temperature: Support for industrial or commercial temperature ranges

The MC100E111FNG from onsemi meets all substitution criteria as a direct functional equivalent with identical fanout ratio, differential topology, and package specification.

Parameter Comparison

Engineering Selection Recommendations

The MC100E111FNG is the direct substitute for the SY100E111JC based on matching functional specifications: identical 1:9 fanout ratio, differential PECL input/output topology, and 28-LCC package. The substitute provides extended supply voltage range (4.2V to 5.7V versus 4.2V to 5.5V) and broader operating temperature support (-40°C to 85°C versus 0°C to 85°C), offering design flexibility for extended temperature applications.

The MC100E111FNG achieves ROHS3 compliance, whereas the original SY100E111JC is RoHS non-compliant. Both components are classified as obsolete or discontinued, indicating limited future availability. Selection should prioritize current inventory status and lead time requirements for production planning.

Frequently Asked Questions (FAQ)

Q: Can MC100E111FNG directly replace SY100E111JC in existing designs?

A: Yes. Both components share identical fanout ratio (1:9), differential signaling topology (PECL input/output), and 28-LCC package specification. Pin-to-pin compatibility is maintained.

Q: What are the key differences between these parts?

A: The MC100E111FNG provides extended supply voltage range (5.7V maximum versus 5.5V) and wider operating temperature range (-40°C to 85°C versus 0°C to 85°C). The substitute achieves ROHS3 compliance while the original is RoHS non-compliant.

Q: Are there frequency specifications that affect substitution?

A: The MC100E111FNG specifies 800 MHz maximum frequency. The SY100E111JC does not provide frequency specification in available documentation. Both are suitable for clock distribution applications within their respective operating parameters.

Q: Does package size differ between these parts?

A: Both components use 28-LCC (J-Lead) packaging. Supplier device packages are nominally equivalent: SY100E111JC at 11.48x11.48 mm and MC100E111FNG at 11.51x11.51 mm, representing standard manufacturing tolerance variation.

Q: What is the impact of RoHS compliance differences?

A: The MC100E111FNG meets ROHS3 compliance requirements for applications subject to RoHS regulations. The SY100E111JC is RoHS non-compliant and may not be suitable for regulated markets or OEM procurement policies requiring RoHS certification.