Renesas Electronics 932SQL450BKLF Clock Synthesizer Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 932SQL450BKLF is a clock synthesizer IC designed for timing and frequency generation applications. This device features a Phase-Locked Loop (PLL) architecture with crystal input and clock output capabilities, operating at a maximum frequency of 100MHz. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for system redesign, board revisions, or inventory replenishment in legacy applications.

Substiute Parts

932SQL450BKLF

Renesas Electronics CorporationIn Stock: 1106932SQL450BKLF Datasheet

Current PartRFQ

932SQ420DGLF

Renesas Electronics CorporationIn Stock: 1463932SQ420DGLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 932SQL450BKLF is determined by the following critical parameters:

• PLL Architecture: Both main and substitute parts must feature Phase-Locked Loop functionality
• Input/Output Configuration: Crystal input with clock output capability required
• Input:Output Ratio: 1:19 multiplication ratio maintained
• Differential Signaling: No/Yes differential input and output support
• Supply Voltage Range: 3.135V ~ 3.465V compatibility
• Operating Temperature Range: 0°C ~ 70°C minimum requirement
• Surface Mount Packaging: Both parts use surface mount technology
• RoHS3 Compliance: Environmental and regulatory compliance alignment

The substitute part 932SQ420DGLF meets these core functional and electrical requirements while offering improved product status and availability.

Parameter Comparison

Engineering Selection Recommendations

The 932SQ420DGLF serves as the manufacturer-recommended substitute for the obsolete 932SQL450BKLF. Selection of this alternative is supported by the following factors:

• Product Status Alignment: The substitute part maintains Active status, ensuring long-term availability and supply chain continuity
• Functional Equivalence: Both parts maintain identical PLL architecture, input:output ratio (1:19), supply voltage range, and operating temperature specifications
• Regulatory Compliance: Both parts achieve ROHS3 compliance and maintain equivalent environmental certifications (REACH Unaffected, ECCN EAR99)
• Enhanced Reliability: The substitute part offers improved moisture sensitivity (MSL 1 vs. MSL 3), reducing handling and storage constraints
• Frequency Headroom: The substitute part supports higher maximum frequency (146.7MHz vs. 100MHz), providing operational margin for timing applications
• Package Consideration: The substitute uses 64-TFSOP packaging instead of 64-VFQFN, requiring PCB layout modification and footprint redesign

Frequently Asked Questions (FAQ)

Q: Can the 932SQ420DGLF directly replace the 932SQL450BKLF without PCB modifications?

A: No. While both parts are electrically equivalent in core function, they use different package types (64-TFSOP vs. 64-VFQFN Exposed Pad). PCB footprint redesign is required.

Q: What is the significance of the 1:19 input:output ratio?

A: This ratio indicates the frequency multiplication factor. The PLL multiplies the crystal input frequency by 19 to generate the output clock frequency. Both the main part and substitute maintain this identical ratio.

Q: Why does the substitute part have a higher maximum frequency (146.7MHz vs. 100MHz)?

A: The 932SQ420DGLF is specified for higher frequency operation, providing additional operational margin. Applications limited to 100MHz operation remain fully compatible.

Q: What does MSL 3 (168 Hours) versus MSL 1 (Unlimited) mean for handling?

A: MSL 3 requires reflow soldering within 168 hours of package opening. MSL 1 has no time restriction, reducing storage and handling constraints during manufacturing.

Q: Are the supply voltage ranges identical?

A: Yes. Both parts operate within the 3.135V ~ 3.465V supply voltage range and maintain identical operating temperature specifications (0°C ~ 70°C).

Q: What is the difference between Clock and HCSL output types?

A: Both are clock output formats. HCSL (High-Speed Current Steering Logic) is a differential signaling standard. The substitute part's HCSL output is compatible with the main part's differential output capability (No/Yes configuration).