932SQL456AGLF Equivalent & Substitute Parts

Part Overview

The 932SQL456AGLF is a PCI Express (PCIe) Clock Synthesizer IC manufactured by Renesas Electronics Corporation. This surface-mount device operates at 100MHz with a single LP-HCSL output and is housed in a 64-TSSOP package. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. Substitute parts must maintain compatibility across electrical specifications, package dimensions, and functional output characteristics.

Substiute Parts

932SQL456AGLF

Renesas Electronics CorporationIn Stock: 983932SQL456AGLF Datasheet

Current PartRFQ

932SQ420DGLF

Renesas Electronics CorporationIn Stock: 1463932SQ420DGLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 932SQL456AGLF is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Manufacturer: Renesas Electronics Corporation
• Package Type: 64-TSSOP (64-TFSOP, 0.240", 6.10mm Width)
• Input Type: Crystal
• 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
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Variation:

• Output Type: LP-HCSL or HCSL (both compatible with PCIe applications)
• Frequency - Max: Equal to or greater than 100MHz
• Product Status: Active or Obsolete (both acceptable for substitution purposes)

The 932SQ420DGLF meets all mandatory criteria and allowable variations, qualifying as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The 932SQ420DGLF is qualified as a direct substitute for the 932SQL456AGLF based on the following factors:

Compliance & Certification Alignment: Both parts maintain identical RoHS3 compliance status and REACH unaffected designation, ensuring regulatory compatibility in applications subject to environmental and hazardous substance restrictions.

Product Status Advantage: The 932SQ420DGLF carries an Active product status, providing superior long-term availability and supply chain stability compared to the obsolete 932SQL456AGLF. This status supports both legacy system maintenance and new design implementations.

Electrical & Mechanical Compatibility: All critical electrical parameters—supply voltage range (3.135V ~ 3.465V), operating temperature range (0°C ~ 70°C), input/output ratio (1:19), and differential signaling configuration (No/Yes)—are identical. The 64-TSSOP package footprint and surface-mount configuration ensure direct PCB compatibility without layout modifications.

Performance Enhancement: The 932SQ420DGLF operates at a maximum frequency of 146.7MHz, exceeding the 100MHz specification of the main part. This higher frequency capability provides operational margin for PCIe clock synthesis applications without introducing compatibility constraints.

Output Signal Compatibility: The transition from LP-HCSL to HCSL output signaling maintains full functional compatibility within PCIe clock distribution architectures. Both output types support the required differential signaling and impedance characteristics for PCIe applications.

Frequently Asked Questions (FAQ)

Q: Can the 932SQ420DGLF directly replace the 932SQL456AGLF on existing PCBs?

A: Yes. Both parts share identical package dimensions (64-TFSOP, 0.240", 6.10mm Width), pin count, and surface-mount footprint. No PCB layout modifications are required for substitution.

Q: What is the significance of the output type change from LP-HCSL to HCSL?

A: LP-HCSL and HCSL are both low-voltage differential signaling standards compatible with PCIe clock synthesis. The 932SQ420DGLF's HCSL output maintains the required signal integrity and impedance characteristics for PCIe applications. Both output types support the 1:19 input-to-output ratio and differential signaling configuration specified for this product category.

Q: Why does the 932SQ420DGLF have a higher maximum frequency (146.7MHz vs. 100MHz)?

A: The 932SQ420DGLF is designed for Intel Romley platform applications, which require higher clock synthesis frequencies. The increased frequency capability does not affect compatibility with systems requiring 100MHz operation. The part operates within the same supply voltage and temperature ranges as the main part.

Q: Are there any supply chain or availability differences between these parts?

A: The 932SQL456AGLF is classified as obsolete, indicating discontinued production and limited availability. The 932SQ420DGLF maintains Active product status, ensuring ongoing manufacturing and reliable supply chain access for both new designs and legacy system support.

Q: Do both parts meet the same environmental and regulatory standards?

A: Yes. Both the 932SQL456AGLF and 932SQ420DGLF are ROHS3 compliant and REACH unaffected. Both carry Moisture Sensitivity Level 1 (Unlimited), indicating no special handling requirements during storage or assembly.

Q: What is the input-to-output ratio, and does it differ between these parts?

A: Both parts maintain a 1:19 input-to-output ratio. This means a crystal input frequency is multiplied by 19 to produce the output clock signal. This ratio is identical across both components, ensuring consistent clock synthesis behavior.

Q: Can the 932SQ420DGLF be used in applications originally designed for the 932SQL456AGLF?

A: Yes. The electrical specifications, package configuration, and functional characteristics are compatible. The higher maximum frequency and active product status make the 932SQ420DGLF suitable for both legacy system maintenance and new design implementations.