MPC93H52AC Equivalent & Substitute Parts

Part Overview

The MPC93H52AC 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 currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MPC93H52AC

Renesas Electronics CorporationIn Stock: 753MPC93H52AC Datasheet

Current PartRFQ

8T49N285A-999NLGI

Renesas Electronics CorporationIn Stock: 12518T49N285A-999NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 8T49N285A-999NLGI qualifies as a functional substitute based on the following core substitution criteria:

Common Functional Parameters:

• Manufacturer: Renesas Electronics Corporation (same source)
• Category: Clock/Timing (identical functional class)
• PLL Architecture: Yes with Bypass (maintains core PLL functionality)
• Divider/Multiplier: Yes/No (equivalent signal processing capability)
• Moisture Sensitivity Level: 3 (168 Hours) (identical handling requirements)
• REACH Status: REACH Unaffected (identical compliance)
• ECCN: EAR99 (identical export classification)

Enhanced Capabilities:

• Frequency - Max: 1GHz (exceeds 240MHz requirement)
• Supply Voltage Range: 2.375V ~ 3.465V (encompasses MPC93H52AC range)
• Operating Temperature: -40°C ~ 85°C (extends temperature range)
• Input/Output Flexibility: Supports LVCMOS plus additional signal types (HCSL, LVDSM, LVHSTL, LVPECL, Crystal, LVDS)
• Product Status: Active (ongoing availability and support)

Package Consideration: The 8T49N285A-999NLGI uses a 56-VFQFN package versus the 32-LQFP of the MPC93H52AC. This represents a different physical footprint and pin configuration requiring PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The 8T49N285A-999NLGI is a valid functional substitute for the obsolete MPC93H52AC based on equivalent PLL architecture, matching core signal processing parameters, and identical compliance certifications (REACH Unaffected, EAR99). The substitute device provides enhanced performance specifications including higher maximum frequency (1GHz vs. 240MHz), extended supply voltage range, and broader operating temperature range.

Implementation Considerations:

1. Package Transition: The change from 32-LQFP to 56-VFQFN requires PCB layout modification. Pin assignments and signal routing must be re-evaluated against the substitute device datasheet.

2. Signal Compatibility: Both devices support LVCMOS input and output. The substitute's additional signal type support (HCSL, LVDSM, LVHSTL, LVPECL, LVDS) does not create incompatibility; these are selectable features.

3. Supply Voltage: The substitute's lower minimum supply voltage (2.375V vs. 3.135V) and identical maximum (3.465V) provides design flexibility without requiring circuit modification if the original supply voltage is maintained within the original specification.

4. Product Status: The substitute's active status ensures ongoing availability, technical support, and supply chain continuity compared to the obsolete original part.

5. Compliance: Both devices share identical REACH and ECCN classifications. The substitute's ROHS3 compliance status meets current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 8T49N285A-999NLGI directly replace the MPC93H52AC without PCB modification?

A: No. The package change from 32-LQFP to 56-VFQFN requires PCB layout redesign. Pin count, spacing, and physical dimensions differ. Schematic signal routing must be verified against the substitute device datasheet.

Q: Are the input and output signal types compatible between these devices?

A: Yes, for LVCMOS signals. Both devices support LVCMOS input and output. The 8T49N285A-999NLGI additionally supports HCSL, LVDSM, LVHSTL, LVPECL, and Crystal inputs, plus LVDS output. These additional types are selectable and do not affect LVCMOS operation.

Q: What is the impact of the higher maximum frequency (1GHz vs. 240MHz)?

A: The substitute's higher frequency capability exceeds the original specification and does not create incompatibility. System performance is determined by the configured output frequency, not the device's maximum rating. Verify that the substitute's programmable frequency range includes the required output frequency for your application.

Q: Does the extended operating temperature range (-40°C to 85°C vs. 0°C to 70°C) require design changes?

A: No design changes are required if your application operates within the original 0°C to 70°C range. The extended range provides additional design margin and flexibility for future applications without affecting current implementations.

Q: Are there supply voltage compatibility issues?

A: No. The substitute's supply voltage range (2.375V ~ 3.465V) encompasses the original specification (3.135V ~ 3.465V). If your design supplies 3.135V to 3.465V, the substitute operates within specification. The lower minimum voltage provides additional design flexibility.

Q: What are the moisture sensitivity handling requirements?

A: Both devices have identical MSL 3 (168 Hours) ratings. Storage, handling, and reflow procedures remain unchanged. Standard MSL 3 precautions apply to both parts.

Q: Is the substitute available in the same packaging format?

A: No. The substitute is supplied in Tray packaging, while the original part information does not specify packaging format. Verify packaging requirements for your procurement and assembly processes.