MPC9331AC Equivalent & Substitute Parts

Part Overview

The MPC9331AC is a PLL Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 240MHz operation in a 32-LQFP surface mount package. This device features PLL functionality with bypass capability, supporting LVCMOS and LVPECL input formats with LVCMOS output. The MPC9331AC is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MPC9331AC

Renesas Electronics CorporationIn Stock: 764MPC9331AC Datasheet

Current PartRFQ

8T49N285A-999NLGI

Renesas Electronics CorporationIn Stock: 12518T49N285A-999NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPC9331AC is determined by the following critical parameters:

Functional Requirements:

• PLL Clock Generator architecture with bypass capability
• Single circuit configuration
• Divider and multiplier functionality
• Support for LVCMOS input compatibility

Electrical Specifications:

• Maximum frequency capability at or above 240MHz
• Supply voltage range compatibility with 3.135V ~ 3.465V
• Output format compatibility with LVCMOS

Physical & Environmental:

• Surface mount technology
• Operating temperature range encompassing 0°C ~ 70°C minimum
• Moisture sensitivity level 3 or better
• REACH compliance status

The substitute part 8T49N285A-999NLGI meets these criteria through its PLL with bypass architecture, LVCMOS input/output support, 1GHz maximum frequency capability, compatible supply voltage range, and surface mount configuration. While the substitute operates at higher frequency and offers extended temperature range, these represent functional enhancements rather than deviations from the core substitution parameters.

Parameter Comparison

Engineering Selection Recommendations

The 8T49N285A-999NLGI serves as a direct functional substitute for the obsolete MPC9331AC based on the following engineering criteria:

Product Status & Availability: The MPC9331AC is classified as obsolete, whereas the 8T49N285A-999NLGI maintains active product status with documented inventory availability. This distinction is critical for long-term supply chain continuity and design lifecycle management.

Regulatory & Compliance Alignment: Both devices maintain identical REACH compliance status (REACH Unaffected) and ECCN classification (EAR99), ensuring equivalent regulatory treatment. The 8T49N285A-999NLGI additionally carries ROHS3 compliance certification, providing enhanced environmental compliance posture.

Functional Compatibility: The substitute device preserves core PLL Clock Generator functionality with bypass capability, single-circuit architecture, and LVCMOS input/output compatibility. The extended frequency capability (1GHz versus 240MHz) and broader operating temperature range (-40°C to 85°C versus 0°C to 70°C) represent functional enhancements that do not compromise backward compatibility for applications operating within the original MPC9331AC specifications.

Physical Integration: Package transition from 32-LQFP to 56-VFQFN Exposed Pad requires PCB layout modification. Both devices employ surface mount technology with identical moisture sensitivity level (MSL 3), maintaining equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the 8T49N285A-999NLGI directly replace the MPC9331AC without design modifications?

A: The 8T49N285A-999NLGI provides functional equivalence for PLL Clock Generator operation. However, the package change from 32-LQFP to 56-VFQFN Exposed Pad necessitates PCB layout redesign. Pin-to-pin correspondence must be verified against device datasheets prior to implementation.

Q: What are the key differences between these devices?

A: Primary differences include maximum frequency (240MHz versus 1GHz), operating temperature range (0°C–70°C versus -40°C–85°C), package configuration (32-LQFP versus 56-VFQFN), and multiplier capability (present in MPC9331AC, absent in 8T49N285A-999NLGI). Supply voltage ranges overlap within the 3.135V–3.465V window.

Q: Are there any compliance or regulatory concerns with substitution?

A: Both devices maintain identical REACH compliance status and ECCN classification. The 8T49N285A-999NLGI carries additional ROHS3 certification, which represents enhanced compliance rather than a restriction. No regulatory barriers exist for substitution.

Q: What is the moisture sensitivity level for both devices?

A: Both the MPC9331AC and 8T49N285A-999NLGI are classified as MSL 3, requiring protection during storage and handling for up to 168 hours at specified humidity conditions. Identical moisture management protocols apply to both devices.

Q: Does the extended temperature range of the substitute affect system design?

A: The 8T49N285A-999NLGI operates across -40°C to 85°C, encompassing the MPC9331AC range of 0°C to 70°C. For applications operating within the original temperature window, the extended range presents no design impact. Applications requiring operation below 0°C or above 70°C benefit from the expanded capability.

Q: What input and output format options does the substitute provide?

A: The 8T49N285A-999NLGI supports expanded input formats (HCSL, LVCMOS, LVDSM, LVHSTL, LVPECL, Crystal) and output formats (HSCL, LVCMOS, LVDS, LVPECL) compared to the MPC9331AC (LVCMOS/LVPECL input, LVCMOS output). LVCMOS compatibility is preserved, ensuring baseline functional equivalence.