MPC9352ACR2 Equivalent & Substitute Parts

Part Overview

The MPC9352ACR2 is a PLL Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 200MHz clock generation applications in 32-LQFP surface mount packaging. This device features integrated PLL with bypass capability, LVCMOS input/output, and a 1:11 input-to-output ratio with divider/multiplier functionality. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	MPC9352ACR2
Manufacturer	Renesas Electronics Corporation
Category	Clock/Timing
Type	PLL Clock Generator
Frequency - Max	200MHz
PLL with Bypass	Yes
Input Signal Type	LVCMOS
Output Signal Type	LVCMOS
Ratio - Input:Output	1:11
Divider/Multiplier	Yes/Yes
Voltage - Supply	2.375V ~ 3.465V
Operating Temperature	-40°C ~ 85°C
Package / Case	32-LQFP
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

The 8T49N285A-999NLGI8 qualifies as a functional substitute for the MPC9352ACR2 based on the following critical parameters:

Matching Electrical Characteristics:

Supply voltage range: 2.375V ~ 3.465V (identical)
Operating temperature range: -40°C ~ 85°C (identical)
PLL with bypass capability: Yes (both devices)
Divider/multiplier functionality: Yes (both devices)
Input/output signal compatibility: LVCMOS supported on both devices

Substitution Basis: The 8T49N285A-999NLGI8 is a higher-performance alternative from the same manufacturer (Renesas Electronics Corporation) with enhanced frequency capability (1GHz vs. 200MHz) and expanded input/output signal format support. The substitute maintains backward compatibility with the MPC9352ACR2's core electrical operating parameters while offering additional flexibility through support for multiple signal formats (HCSL, LVDS, LVPECL, Crystal input options).

Package Consideration: The substitute uses 56-VFQFN packaging versus the original 32-LQFP, requiring PCB layout redesign and footprint modification.

Parameter Comparison

Parameter	MPC9352ACR2	8T49N285A-999NLGI8
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Category	Clock/Timing	Clock/Timing
Type	PLL Clock Generator	Frequency Translator
Frequency - Max	200MHz	1GHz
PLL with Bypass	Yes	Yes
Input Signal Type	LVCMOS	HCSL, LVCMOS, LVDSM, LVHSTL, LVPECL, Crystal
Output Signal Type	LVCMOS	HSCL, LVCMOS, LVDS, LVPECL
Number of Circuits	1	1
Divider/Multiplier	Yes/Yes	Yes/No
Voltage - Supply	2.375V ~ 3.465V	2.375V ~ 3.465V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	32-LQFP	56-VFQFN Exposed Pad
Product Status	Obsolete	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
RoHS Status	Not specified	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Substitution: The 8T49N285A-999NLGI8 is suitable as a replacement for the obsolete MPC9352ACR2 when the following conditions are met:

System design accommodates the larger 56-VFQFN package footprint (8x8mm vs. 32-LQFP 7x7mm)
PCB layout can be modified to support the new pinout and package geometry
Application requirements do not exceed 200MHz operation (the substitute's 1GHz capability provides operational margin)
Supply voltage and temperature operating ranges remain within 2.375V ~ 3.465V and -40°C ~ 85°C respectively

Compliance Status: The substitute part (8T49N285A-999NLGI8) carries active product status with ROHS3 compliance certification, providing long-term availability and regulatory alignment. Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99).

Frequently Asked Questions (FAQ)

Q: Can the 8T49N285A-999NLGI8 directly replace the MPC9352ACR2 without circuit modifications?

A: Electrical substitution is possible due to matching supply voltage, temperature range, and PLL/bypass functionality. However, package redesign is mandatory. The substitute uses 56-VFQFN versus the original 32-LQFP, requiring new PCB footprint, layout, and routing.

Q: What are the key differences between these two parts?

A: The primary differences are maximum frequency capability (1GHz vs. 200MHz), package type (56-VFQFN vs. 32-LQFP), input/output signal format flexibility (expanded on the substitute), and product status (active vs. obsolete). The substitute offers higher performance and broader signal compatibility.

Q: Are there any signal compatibility concerns when substituting?

A: Both parts support LVCMOS input and output, ensuring baseline compatibility. The substitute additionally supports HCSL, LVDS, LVPECL, and Crystal inputs with corresponding output options. Existing LVCMOS-based designs require no signal interface changes.

Q: What is the impact of the package change on system design?

A: The 56-VFQFN package is larger than the 32-LQFP, affecting board space allocation, thermal management, and signal routing. The exposed pad on the VFQFN package provides improved thermal performance compared to the LQFP variant.

Q: Is the substitute part readily available?

A: The 8T49N285A-999NLGI8 carries active product status with 1009 pieces in stock, ensuring availability for production and development applications. The original MPC9352ACR2 is obsolete with limited remaining inventory (3259 pieces).

Q: Do both parts require identical power supply filtering and decoupling?

A: Both parts operate within the same supply voltage range (2.375V ~ 3.465V) and share identical MSL ratings (3, 168 Hours). Standard decoupling practices for 3.3V logic apply to both devices. Consult device datasheets for specific power distribution recommendations.

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