932S421BGLF-INT Equivalent & Substitute Parts

Part Overview

The 932S421BGLF-INT is a Clock and Timing IC manufactured by Renesas Electronics Corporation, specifically designed as an Intel CPU Servers and PCI Express (PCIe) Clock Generator. This device operates at a maximum frequency of 400MHz with a single HCSL output and integrates a Phase-Locked Loop (PLL) for clock synthesis applications.

The 932S421BGLF-INT is classified as an Obsolete product. Identification of equivalent and substitute parts is necessary to maintain system functionality and ensure continued availability for legacy system support, repair, and redesign applications where this clock generator is specified in the original design.

Substiute Parts

932S421BGLF-INT

Renesas Electronics CorporationIn Stock: 818932S421BGLF-INT Datasheet

Current PartRFQ

932SQ420DGLF

Renesas Electronics CorporationIn Stock: 1463932SQ420DGLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 932S421BGLF-INT is determined by the following critical parameters that must align between the main part and substitute candidates:

Mandatory Alignment Parameters:

• Manufacturer: Renesas Electronics Corporation
• Category: Clock/Timing
• Input Type: Crystal
• Output Type: HCSL
• PLL Functionality: Yes
• Number of Circuits: 1
• Ratio - Input:Output: 1:19
• Differential - Input:Output: No/Yes
• Voltage - Supply: 3.135V ~ 3.465V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package Width: 6.10mm

The 932SQ420DGLF qualifies as a substitute part because it maintains compatibility across all mandatory electrical and mechanical parameters. While the maximum frequency differs (146.7MHz versus 400MHz) and the package pin count increases (64-TSSOP versus 56-TSSOP), the core functional parameters and electrical specifications remain within acceptable substitution criteria for the specified application domain.

Parameter Comparison

Engineering Selection Recommendations

The 932SQ420DGLF is classified as an Active product with current manufacturing status, whereas the 932S421BGLF-INT is Obsolete. Selection of the 932SQ420DGLF provides access to an actively manufactured substitute that maintains electrical and functional compatibility.

The 932SQ420DGLF carries ROHS3 compliance and REACH Unaffected status, providing regulatory alignment for new designs and system updates. The Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) indicates superior handling flexibility compared to higher MSL ratings.

The substitute part operates at a lower maximum frequency (146.7MHz versus 400MHz) and requires a larger package footprint (64-TSSOP versus 56-TSSOP). These differences must be evaluated against specific application requirements and PCB layout constraints. Both parts maintain identical supply voltage ranges, operating temperature specifications, and core clock synthesis functionality through PLL-based architecture.

Frequently Asked Questions (FAQ)

Q: Can the 932SQ420DGLF directly replace the 932S421BGLF-INT in existing designs?

A: The 932SQ420DGLF maintains electrical compatibility across supply voltage, operating temperature, input/output signal types, and PLL functionality. However, the substitute part operates at a lower maximum frequency (146.7MHz versus 400MHz) and requires a larger package (64-TSSOP versus 56-TSSOP). PCB layout modifications and frequency validation against application requirements are necessary before implementation.

Q: What are the key differences between these two clock generator ICs?

A: The primary differences are: (1) Maximum frequency specification: 932S421BGLF-INT operates to 400MHz while 932SQ420DGLF operates to 146.7MHz; (2) Package pin count: 56-TSSOP versus 64-TSSOP; (3) Product status: Obsolete versus Active; (4) Regulatory compliance: 932SQ420DGLF includes ROHS3 and REACH documentation. All other electrical parameters, including supply voltage, output type (HCSL), and PLL architecture, remain identical.

Q: Are there any application-specific considerations for substitution?

A: The frequency difference is the primary application consideration. If the system design requires clock outputs at or near 400MHz, the 932SQ420DGLF maximum frequency of 146.7MHz may not satisfy performance requirements. The increased package size (64-TSSOP) requires verification of available PCB footprint space and routing clearances. Both parts are designed for Intel CPU Servers and PCIe applications with identical input/output signal characteristics.

Q: What is the significance of the 1:19 Input:Output ratio?

A: The 1:19 ratio indicates that the clock generator multiplies the input crystal frequency by a factor of 19 through its integrated PLL. This multiplication factor is identical between both parts, ensuring consistent frequency synthesis behavior when operating within their respective maximum frequency specifications.

Q: Does the 932SQ420DGLF require different handling procedures?

A: The 932SQ420DGLF carries an MSL rating of 1 (Unlimited), which provides greater flexibility in storage and handling compared to higher MSL ratings. This represents an improvement over the main part specification. Standard surface mount handling procedures for TSSOP packages apply to both devices.