MPC93R52AC Equivalent & Substitute Parts

Part Overview

The MPC93R52AC 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 a single PLL circuit with bypass capability, LVCMOS input/output, and a 1:11 input-to-output ratio. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations where this functionality is required.

Substiute Parts

MPC93R52AC

Renesas Electronics CorporationIn Stock: 838MPC93R52AC Datasheet

Current PartRFQ

8T49N285A-999NLGI

Renesas Electronics CorporationIn Stock: 12518T49N285A-999NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPC93R52AC is determined by the following critical parameters:

Functional Requirements:

• PLL Clock Generator with bypass capability
• Single circuit configuration
• Manufacturer: Renesas Electronics Corporation

Electrical Compatibility:

• Input signal compatibility: LVCMOS support required
• Output signal compatibility: LVCMOS support required
• Supply voltage overlap: Minimum 3.135V to 3.465V range
• Maximum frequency capability: Must support or exceed 240MHz operation

Physical & Environmental:

• Surface mount technology
• Operating temperature range: Must encompass or exceed 0°C ~ 70°C
• Moisture sensitivity level: MSL 3 or better
• Package form factor: Must be compatible with PCB layout constraints

The substitute part 8T49N285A-999NLGI meets these criteria through expanded input/output signal support (HCSL, LVCMOS, LVDSM, LVHSTL, LVPECL, Crystal inputs; HSCL, LVCMOS, LVDS, LVPECL outputs), higher maximum frequency (1GHz), overlapping supply voltage range, and active product status with enhanced environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

The 8T49N285A-999NLGI serves as a functional substitute for the obsolete MPC93R52AC based on the following engineering criteria:

Product Lifecycle Status: The MPC93R52AC is obsolete, whereas the 8T49N285A-999NLGI maintains active product status with ongoing manufacturer support and availability.

Compliance & Certifications: The 8T49N285A-999NLGI is ROHS3 compliant and REACH unaffected, providing regulatory alignment for current manufacturing standards. Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Electrical Performance: The substitute part provides superior frequency capability (1GHz vs. 240MHz) and expanded signal compatibility (multiple input/output standards including LVCMOS). Supply voltage ranges overlap within the critical 3.135V ~ 3.465V window required by the original design.

Environmental Specifications: The 8T49N285A-999NLGI extends the operating temperature range (-40°C ~ 85°C) beyond the original specification (0°C ~ 70°C), providing broader environmental coverage. Moisture sensitivity levels are identical (MSL 3).

Package Consideration: The substitute uses a 56-VFQFN package versus the original 32-LQFP. PCB layout redesign is required to accommodate the different pin count and form factor.

Frequently Asked Questions (FAQ)

Q: Can the 8T49N285A-999NLGI directly replace the MPC93R52AC without design changes?

A: No. While both devices are PLL Clock Generators from Renesas Electronics Corporation with compatible electrical characteristics, the package change from 32-LQFP to 56-VFQFN requires PCB layout modification. The increased pin count (56 vs. 32) and different footprint necessitate schematic and layout redesign.

Q: What are the key electrical compatibility factors for substitution?

A: The critical factors are: (1) PLL with bypass capability present in both parts, (2) LVCMOS signal support in both input and output stages, (3) overlapping supply voltage range (3.135V ~ 3.465V), and (4) maximum frequency capability sufficient for 240MHz operation. The 8T49N285A-999NLGI exceeds all these requirements.

Q: Does the substitute part support the same input-to-output ratio as the original?

A: The MPC93R52AC specifies a 1:11 ratio, while the 8T49N285A-999NLGI specifies a 3:8 ratio. Both devices feature programmable divider/multiplier functionality. Ratio compatibility depends on the specific frequency requirements of your application and the programmable configuration options available in each device.

Q: What is the impact of the extended operating temperature range?

A: The 8T49N285A-999NLGI operates from -40°C ~ 85°C compared to the original 0°C ~ 70°C. This provides enhanced capability for applications requiring broader temperature coverage. If your design operates within the original 0°C ~ 70°C window, the substitute part remains fully compatible.

Q: Are there any supply voltage considerations for substitution?

A: Both parts operate within overlapping supply voltage ranges. The 8T49N285A-999NLGI extends the lower limit to 2.375V, providing additional flexibility. Designs operating at 3.135V ~ 3.465V are compatible with both parts.

Q: What packaging and handling differences exist between these parts?

A: The MPC93R52AC uses 32-TQFP packaging, while the 8T49N285A-999NLGI uses 56-VFQFPN with exposed pad. Both maintain MSL 3 moisture sensitivity levels. The substitute part's larger package and exposed pad require appropriate PCB design considerations for thermal management and signal integrity.