853S111AYILF Clock Fanout Buffer Equivalent & Substitute Parts

Part Overview

The 853S111AYILF is a Clock Fanout Buffer (Distribution) Multiplexer IC manufactured by Renesas Electronics Corporation, designed for high-speed clock distribution applications. This 2:10 differential clock buffer operates at frequencies up to 2.5 GHz and is housed in a 32-LQFP surface mount package. The device is currently in active production status with 1313 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative supply chains are required, or when design flexibility demands component options from different manufacturers while maintaining functional and electrical compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	853S111AYILF
Manufacturer	Renesas Electronics Corporation
Type	Fanout Buffer (Distribution), Multiplexer
Ratio - Input:Output	2:10
Frequency - Max	2.5 GHz
Voltage - Supply	2.375V ~ 3.465V
Operating Temperature	-40°C ~ 85°C
Package / Case	32-LQFP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the 853S111AYILF is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Input:Output Ratio: 2:10 (all substitutes must maintain this configuration)
Package Type: 32-LQFP (physical and electrical compatibility requirement)
Mounting Type: Surface Mount
Differential Input and Output capability
Supply Voltage Range: Minimum 2.375V support required
Operating Temperature Range: Minimum -40°C to 85°C support required
RoHS3 Compliance

Performance Considerations:

Maximum Frequency: Substitutes operating at 2.5 GHz or higher are functionally compatible
Input/Output Signal Standards: Substitutes must support at least one common input standard (CML, LVDS, LVPECL, SSTL) and output standard (ECL, PECL, LVPECL)

Four substitute parts meet these criteria across manufacturers onsemi and Texas Instruments, offering frequency performance ranging from 2.5 GHz to 4.6 GHz with enhanced supply voltage ranges and improved moisture sensitivity ratings.

Parameter Comparison

Parameter	853S111AYILF (Renesas)	MC100LVEP111FAG (onsemi)	CDCLVP110MVFR (TI)	CDCLVP111MVFREP (TI)	M100LVEP111FATWG (onsemi)
Ratio - Input:Output	2:10	2:10	2:10	2:10	2:10
Frequency - Max	2.5 GHz	3 GHz	4.6 GHz	4.6 GHz	3 GHz
Voltage - Supply	2.375V ~ 3.465V	2.375V ~ 3.8V	2.375V ~ 3.8V	2.375V ~ 3.8V	2.375V ~ 3.8V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C
Package / Case	32-LQFP	32-LQFP	32-LQFP	32-LQFP	32-LQFP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Differential - Input:Output	Yes/Yes	Yes/Yes	Yes/Yes	Yes/Yes	Yes/Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
MSL Rating	3 (168 Hours)	2 (1 Year)	1 (Unlimited)	3 (168 Hours)	2 (1 Year)

Engineering Selection Recommendations

Primary Substitute - MC100LVEP111FAG (onsemi): Active product status with 2615 units in stock. Operates at 3 GHz maximum frequency, exceeding the 853S111AYILF specification. Maintains identical 2:10 ratio, 32-LQFP package, and -40°C to 85°C operating range. MSL rating of 2 provides improved moisture handling compared to the original part. ROHS3 compliant with EAR99 export classification.

Secondary Substitute - CDCLVP110MVFR (Texas Instruments): Active product status with 3400 units in stock. Highest frequency capability at 4.6 GHz. Extended supply voltage range to 3.8V. MSL rating of 1 (Unlimited) offers superior moisture sensitivity performance. ROHS3 compliant. Recommended for applications requiring maximum frequency headroom and extended environmental stability.

Extended Temperature Option - CDCLVP111MVFREP (Texas Instruments): Active product status with 1112 units in stock. Operates at 4.6 GHz with extended operating temperature range of -55°C to 125°C. Supports broader input signal standards (CML, LVDS, LVPECL, SSTL). MSL rating of 3 matches the original part. Suitable for industrial and automotive temperature range requirements.

Alternative onsemi Source - M100LVEP111FATWG (onsemi): Active product status with 1400 units in stock. Tape & Reel packaging option. 3 GHz maximum frequency with MSL rating of 2. Functionally equivalent to MC100LVEP111FAG with alternative packaging configuration.

All substitute parts maintain ROHS3 compliance, EAR99 export classification, and identical mechanical compatibility with the 853S111AYILF.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 853S111AYILF with any of these substitute parts? A: Yes, all listed substitutes maintain the critical 2:10 input:output ratio, 32-LQFP package, surface mount configuration, and differential input/output capability. Pin-for-pin compatibility is ensured within the 32-LQFP package footprint. Verify signal standard compatibility (input/output types) with your specific application circuit.

Q: What is the main difference between the Renesas 853S111AYILF and the onsemi MC100LVEP111FAG? A: The primary differences are manufacturer and maximum frequency. The MC100LVEP111FAG operates at 3 GHz versus 2.5 GHz for the 853S111AYILF, providing additional frequency margin. The onsemi part has an MSL rating of 2 (1 Year) compared to MSL 3 (168 Hours) for the Renesas part, offering improved moisture handling. Both maintain identical supply voltage minimums and operating temperature ranges.

Q: Which substitute offers the best performance specifications? A: The CDCLVP110MVFR from Texas Instruments provides the highest maximum frequency at 4.6 GHz and the best MSL rating of 1 (Unlimited). It also supports the widest supply voltage range up to 3.8V. This part is recommended for applications requiring maximum frequency headroom and extended environmental stability.

Q: Are there temperature range differences I should consider? A: The CDCLVP111MVFREP extends the operating temperature range to -55°C to 125°C, compared to -40°C to 85°C for the original part and most substitutes. Select this part if your application requires industrial or automotive temperature specifications.

Q: What does the 2:10 ratio mean? A: The 2:10 ratio indicates the clock buffer accepts 2 differential input signals and distributes them to 10 differential output channels. All substitute parts maintain this identical configuration.

Q: Do all substitutes support the same input and output signal standards? A: No. The original 853S111AYILF supports CML, LVDS, LVPECL, and SSTL inputs with ECL and PECL outputs. Substitutes vary: MC100LVEP111FAG supports ECL, HSTL, LVDS, and PECL inputs; CDCLVP110MVFR supports HSTL and LVPECL inputs; CDCLVP111MVFREP supports CML, LVDS, LVPECL, and SSTL inputs. Verify your application uses compatible signal standards before substitution.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating? A: MSL rating indicates the maximum time a component can be exposed to ambient conditions (30°C, 85% relative humidity) before soldering. MSL 1 (Unlimited) allows indefinite storage; MSL 2 (1 Year) allows one year; MSL 3 (168 Hours) allows seven days. Higher MSL numbers require more careful handling and shorter shelf life management.

Q: Are all substitutes RoHS3 compliant? A: Yes, all listed substitute parts are ROHS3 compliant, matching the original 853S111AYILF specification.

Q: Which substitute has the best stock availability? A: CDCLVP110MVFR from Texas Instruments has the highest inventory with 3400 units in stock, followed by MC100LVEP111FAG with 2615 units.

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