MPC93R51ACR2 Equivalent & Substitute Parts

Part Overview

The MPC93R51ACR2 is a PLL Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 240MHz clock generation applications 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 product is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

MPC93R51ACR2

Renesas Electronics CorporationIn Stock: 897MPC93R51ACR2 Datasheet

Current PartRFQ

8T49N285A-999NLGI8

Renesas Electronics CorporationIn Stock: 10808T49N285A-999NLGI8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPC93R51ACR2 is based on the following critical parameters:

• PLL Functionality: Both main and substitute parts must include PLL with bypass capability
• Input/Output Signal Compatibility: Substitute must support LVCMOS input at minimum; LVPECL input support is beneficial for design flexibility
• Frequency Capability: Substitute frequency rating must meet or exceed 240MHz operational requirements
• Supply Voltage Range: Substitute must operate within or encompass the 3.135V ~ 3.465V range
• Surface Mount Packaging: Substitute must be surface mount technology
• Divider/Multiplier Support: Both parts require frequency division and multiplication capability

The 8T49N285A-999NLGI8 qualifies as a substitute based on these parameters, despite differences in package type and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The 8T49N285A-999NLGI8 is suitable as a substitute for the obsolete MPC93R51ACR2 based on the following factors:

• Active Product Status: The substitute is an active product with ongoing manufacturer support, ensuring long-term availability and supply chain stability
• Regulatory Compliance: Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99), maintaining compliance requirements
• RoHS3 Compliance: The substitute meets ROHS3 standards, supporting modern environmental and regulatory requirements
• Functional Capability: The substitute exceeds the frequency requirement (1GHz vs. 240MHz) and supports all required input/output signal formats
• Supply Voltage Compatibility: The substitute supply voltage range (2.375V ~ 3.465V) encompasses the original part's range (3.135V ~ 3.465V)
• Moisture Sensitivity: Both parts share identical MSL rating (3, 168 Hours), maintaining handling and storage requirements

Design integration requires evaluation of package differences (32-LQFP to 56-VFQFN) and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C).

Frequently Asked Questions (FAQ)

Q: Why is the MPC93R51ACR2 classified as obsolete? A: The MPC93R51ACR2 has reached end-of-life status with Renesas Electronics Corporation. Substitute parts are necessary for new designs and production continuity.

Q: Can the 8T49N285A-999NLGI8 directly replace the MPC93R51ACR2 without design modifications? A: The substitute differs in package type (56-VFQFN vs. 32-LQFP) and pin configuration, requiring PCB layout redesign. Functional compatibility exists for clock generation and signal format conversion.

Q: What are the key differences in input/output capabilities? A: The substitute supports additional input formats (HCSL, LVDSM, LVHSTL, Crystal) and output formats (HSCL, LVDS, LVPECL) beyond the original part's LVCMOS and LVPECL support, providing greater design flexibility.

Q: Does the substitute support the same frequency range? A: The substitute exceeds the original frequency specification, supporting up to 1GHz compared to the MPC93R51ACR2's 240MHz maximum. This provides headroom for current and future applications.

Q: Are there supply voltage compatibility concerns? A: The substitute's supply voltage range (2.375V ~ 3.465V) encompasses the original part's range (3.135V ~ 3.465V). Designs operating at the lower end of the original range (3.135V) remain compatible.

Q: What is the impact of the extended operating temperature range? A: The substitute supports -40°C ~ 85°C versus the original 0°C ~ 70°C. This extended range provides greater flexibility for industrial and automotive applications without requiring design changes.

Q: Are moisture sensitivity and handling requirements identical? A: Both parts share MSL rating 3 (168 Hours), maintaining identical moisture sensitivity handling, storage, and reflow requirements.

Q: What regulatory certifications apply to both parts? A: Both parts are REACH Unaffected and classified as EAR99 for export control purposes. The substitute additionally meets ROHS3 compliance standards.