MPC9449AER2 Equivalent & Substitute Parts

Part Overview

The MPC9449AER2 is a Clock Fanout Buffer (Distribution), Divider, Multiplexer IC manufactured by Renesas Electronics Corporation. This device provides 3:15 clock distribution at frequencies up to 200 MHz with LVCMOS and LVPECL input support and LVCMOS output capability. The MPC9449AER2 is classified as Obsolete, making identification of functionally equivalent substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

MPC9449AER2

Renesas Electronics CorporationIn Stock: 3283MPC9449AER2 Datasheet

Current PartRFQ

8T49N285A-999NLGI8

Renesas Electronics CorporationIn Stock: 10808T49N285A-999NLGI8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPC9449AER2 is based on the following critical parameters that define functional equivalence:

Core Substitution Criteria:

• Device Type: Fanout Buffer (Distribution), Divider, Multiplexer functionality
• Manufacturer: Renesas Electronics Corporation (same manufacturer ecosystem)
• Supply Voltage Compatibility: 2.375V ~ 3.465V range
• Operating Temperature Range: -40°C ~ 85°C
• Input Signal Support: LVCMOS and/or LVPECL compatibility
• Output Signal Support: LVCMOS capability
• Mounting Type: Surface Mount
• Regulatory Compliance: REACH Unaffected, EAR99 classification

The substitute part 8T49N285A-999NLGI8 meets these criteria as an active, currently available clock distribution device from Renesas Electronics Corporation with overlapping electrical specifications and enhanced frequency capability.

Parameter Comparison

Engineering Selection Recommendations

The 8T49N285A-999NLGI8 serves as a functional substitute for the obsolete MPC9449AER2 based on the following engineering factors:

Product Status & Availability: The MPC9449AER2 is classified as Obsolete, whereas the 8T49N285A-999NLGI8 maintains Active product status with current inventory availability. This transition ensures long-term supply chain continuity.

Electrical Compatibility: Both devices operate within the identical supply voltage range (2.375V ~ 3.465V) and temperature range (-40°C ~ 85°C). The substitute part supports all input signal types of the original (LVCMOS, LVPECL) and maintains LVCMOS output capability, ensuring signal integrity in existing system architectures.

Regulatory & Compliance Alignment: Both parts carry identical REACH Unaffected status and EAR99 ECCN classification, maintaining compliance posture across supply chain and export requirements. Moisture Sensitivity Level (MSL) rating remains consistent at Level 3 (168 Hours).

Enhanced Capability: The 8T49N285A-999NLGI8 provides extended frequency support (1 GHz versus 200 MHz) and broader input/output signal format compatibility, offering design flexibility for future system enhancements without component re-qualification.

Package Consideration: The substitute employs a 56-VFQFN package versus the original 52-LQFP package. PCB layout and footprint redesign is required for implementation.

Frequently Asked Questions (FAQ)

Q: Can the 8T49N285A-999NLGI8 directly replace the MPC9449AER2 without PCB modification?

A: No. The substitute part uses a different package (56-VFQFN Exposed Pad versus 52-LQFP), requiring PCB footprint redesign and layout modification. Pin configuration and signal routing must be re-evaluated against the substitute part datasheet.

Q: Are the supply voltage and operating temperature ranges identical between these parts?

A: Yes. Both devices operate at 2.375V ~ 3.465V supply voltage and -40°C ~ 85°C operating temperature range, ensuring thermal and power supply compatibility.

Q: What input and output signal types does the substitute support?

A: The 8T49N285A-999NLGI8 accepts HCSL, LVCMOS, LVDSM, LVHSTL, LVPECL, and Crystal inputs, and provides HSCL, LVCMOS, LVDS, and LVPECL outputs. The original MPC9449AER2 accepts LVCMOS and LVPECL inputs with LVCMOS output only. The substitute maintains backward compatibility with the original input/output signal types.

Q: What is the frequency capability difference between these parts?

A: The MPC9449AER2 operates at maximum 200 MHz, while the 8T49N285A-999NLGI8 supports frequencies up to 1 GHz. For applications operating below 200 MHz, both parts are functionally equivalent at the frequency level.

Q: Are both parts compliant with REACH and export regulations?

A: Yes. Both the MPC9449AER2 and 8T49N285A-999NLGI8 carry REACH Unaffected status and EAR99 ECCN classification, maintaining identical regulatory compliance.

Q: What is the moisture sensitivity level for the substitute part?

A: The 8T49N285A-999NLGI8 carries MSL Level 3 (168 Hours), identical to the original MPC9449AER2, requiring equivalent moisture control and handling procedures during storage and assembly.