Renesas 552AR-01LF Clock Generator Equivalent & Substitute Parts

Part Overview

The 552AR-01LF is a Clock Generator and Fanout Distribution IC manufactured by Renesas Electronics Corporation, designed for 200MHz clock distribution applications. This device features a 1:8 input-to-output ratio with CMOS output configuration and operates across a 3V to 5.5V supply voltage range in a 20-SSOP surface mount package.

The 552AR-01LF is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain system functionality in legacy designs, ensure continued component availability, and support long-term production requirements where original inventory becomes depleted.

Substiute Parts

552AR-01LF

Renesas Electronics CorporationIn Stock: 847552AR-01LF Datasheet

Current PartRFQ

5P83908NDGK

Renesas Electronics CorporationIn Stock: 6645P83908NDGK Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 552AR-01LF is based on the following critical parameters that must remain consistent or compatible:

• Frequency Performance: Maximum operating frequency of 200 MHz or higher
• Distribution Ratio: 1:8 input-to-output configuration
• Output Logic Family: CMOS or LVCMOS output compatibility
• Supply Voltage Range: Overlap or compatibility with 3V to 5.5V operation
• Package Type: Surface mount configuration with compatible pinout
• Differential Characteristics: Non-differential input and output (No/No)

The substitute part 5P83908NDGK meets these core functional requirements while offering enhanced specifications in certain areas, including extended operating temperature range and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 5P83908NDGK serves as a functional substitute for the 552AR-01LF based on matched core specifications: identical 1:8 distribution ratio, 200 MHz maximum frequency, non-differential input/output configuration, and surface mount technology.

Key considerations for substitution:

Product Status: The 5P83908NDGK is an active product with ongoing manufacturer support, whereas the 552AR-01LF is obsolete. This transition ensures long-term component availability and supply chain continuity.

Compliance: The 5P83908NDGK carries ROHS3 compliance certification, meeting current environmental and regulatory standards. Both parts maintain REACH Unaffected status and EAR99 ECCN classification.

Supply Voltage Compatibility: The 552AR-01LF operates at 3V to 5.5V. The 5P83908NDGK operates at discrete voltage levels (1.8V, 2.5V, 3.3V). System designs operating at 3.3V fall within both specifications. Designs requiring 5V operation require voltage level translation or alternative substitutes.

Operating Temperature Range: The 5P83908NDGK extends the operating temperature range to -40°C to 105°C, providing enhanced performance margin for industrial and extended-temperature applications compared to the 0°C to 70°C range of the original part.

Package Transition: The 552AR-01LF uses 20-SSOP packaging; the 5P83908NDGK uses 20-VFQFN with exposed pad. PCB layout redesign is required for package migration. Pin-to-pin functional compatibility must be verified against detailed datasheets before implementation.

Frequently Asked Questions (FAQ)

Q: Can the 5P83908NDGK directly replace the 552AR-01LF without PCB modifications?

A: No. The 552AR-01LF uses 20-SSOP packaging while the 5P83908NDGK uses 20-VFQFN packaging. These packages have different footprints and pinouts. PCB layout redesign is required. Pin function mapping must be verified against manufacturer datasheets before board redesign.

Q: What is the voltage compatibility between these parts?

A: The 552AR-01LF operates at 3V to 5.5V. The 5P83908NDGK operates at discrete levels: 1.8V, 2.5V, and 3.3V. Both parts are compatible at 3.3V operation. Systems requiring 5V operation cannot use the 5P83908NDGK without external voltage regulation or alternative substitutes.

Q: Why is the operating temperature range different?

A: The 552AR-01LF specifies 0°C to 70°C operation. The 5P83908NDGK specifies -40°C to 105°C. The substitute part offers extended temperature performance, which is beneficial for industrial applications but not required for commercial temperature range designs.

Q: Are there functional differences between CMOS and LVCMOS outputs?

A: Both are CMOS-based logic families. LVCMOS (Low Voltage CMOS) is optimized for lower voltage operation and reduced power consumption. At 3.3V operation, LVCMOS output levels are compatible with standard CMOS input thresholds. Verify output voltage specifications in detailed datasheets for your specific application.

Q: What does the exposed pad on the 5P83908NDGK do?

A: The exposed pad in the 20-VFQFN package provides thermal and electrical connection to ground. This improves heat dissipation compared to the 20-SSOP package. Proper PCB layout with thermal vias connected to the exposed pad is required for optimal thermal performance.

Q: Are both parts RoHS compliant?

A: The 5P83908NDGK is ROHS3 compliant. The 552AR-01LF RoHS status is not specified in available documentation. Both parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: What is the inventory status of these parts?

A: The 552AR-01LF has 769 pieces in stock as new original inventory. The 5P83908NDGK has 632 pieces in stock as new original inventory. As an active product, the 5P83908NDGK maintains ongoing manufacturing and supply availability.