SPC5644AF0MLU2 Equivalent & Substitute Parts

Part Overview

The SPC5644AF0MLU2 is a 32-bit single-core embedded microcontroller from NXP USA Inc., part of the MPC56xx Qorivva series. This device integrates an e200z4 processor core operating at 120MHz with 4MB of FLASH program memory, 192KB of RAM, and comprehensive automotive-grade connectivity peripherals including CANbus, LINbus, SCI, and SPI interfaces. The component is housed in a 176-LQFP surface-mount package and operates across an industrial temperature range of -40°C to 125°C. As an active product with ROHS3 compliance and REACH unaffected status, the SPC5644AF0MLU2 remains available; however, alternative part numbers may be required due to inventory constraints, application-specific performance requirements, or supply chain considerations.

Substiute Parts

SPC5644AF0MLU2

NXP USA Inc.In Stock: 1523SPC5644AF0MLU2 Datasheet

Current PartRFQ

SPC564A80L7CFAR

STMicroelectronicsIn Stock: 3089SPC564A80L7CFAR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPC5644AF0MLU2 is determined by the following critical parameters:

Core Architecture Compatibility: The substitute part must utilize the same e200z4 processor core and maintain 32-bit single-core configuration to ensure instruction set compatibility and software portability.

Memory Configuration: Program memory capacity must equal or exceed 4MB FLASH, and RAM must be at least 192K x 8 to support existing firmware and application requirements.

Package Specification: The 176-LQFP (24x24) surface-mount package is mandatory for PCB layout compatibility and mechanical fit.

Electrical Characteristics: Supply voltage range must encompass the original specification (1.14V ~ 5.25V) or be a subset that covers the application's operating voltage. Operating temperature range must span -40°C to 125°C minimum.

Connectivity & Peripherals: CANbus, LINbus, SCI, and SPI interfaces must be present. DMA, POR, PWM, and WDT peripherals must be available.

Compliance & Regulatory: RoHS3 compliance and REACH unaffected status are required for regulatory alignment.

The SPC564A80L7CFAR meets these substitution criteria while offering enhanced performance characteristics within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitution: The SPC564A80L7CFAR is qualified as a direct substitute for the SPC5644AF0MLU2 based on matching core architecture, memory configuration, package specification, and regulatory compliance. Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Performance Considerations: The SPC564A80L7CFAR operates at 150MHz compared to the SPC5644AF0MLU2's 120MHz, providing 25% higher clock speed within the same instruction set architecture. This performance uplift is backward-compatible for applications designed for the original part.

I/O Expansion: The substitute part provides 118 I/O pins versus 84 on the main part, offering additional interface capacity without requiring design changes to existing pin assignments.

Voltage Supply Specification: The SPC564A80L7CFAR operates within a narrower supply voltage range (1.14V ~ 1.32V) compared to the SPC5644AF0MLU2 (1.14V ~ 5.25V). Applications requiring the full 5.25V upper limit must retain the original part number.

Automotive Qualification: The SPC564A80L7CFAR carries AEC-Q100 automotive qualification, making it suitable for automotive-grade applications where this certification is mandated.

Frequently Asked Questions (FAQ)

Q: Can the SPC564A80L7CFAR replace the SPC5644AF0MLU2 in all applications?

A: The SPC564A80L7CFAR is compatible with applications designed for the SPC5644AF0MLU2 provided the application's supply voltage does not exceed 1.32V. Applications requiring operation above 1.32V must use the original SPC5644AF0MLU2 part number.

Q: What is the primary difference between these two parts?

A: Both parts share identical core architecture (e200z4), memory configuration (4MB FLASH, 192KB RAM), and package specification (176-LQFP). The SPC564A80L7CFAR operates at higher clock speed (150MHz vs. 120MHz), provides more I/O pins (118 vs. 84), and carries automotive qualification (AEC-Q100).

Q: Are the pin assignments identical between these parts?

A: Both parts use the 176-LQFP (24x24) package. The SPC564A80L7CFAR provides additional I/O pins (118 vs. 84), indicating expanded pin functionality. PCB layout compatibility must be verified for the specific application.

Q: Do both parts support the same connectivity interfaces?

A: Yes. Both the SPC5644AF0MLU2 and SPC564A80L7CFAR include CANbus, EBI/EMI, LINbus, SCI, and SPI connectivity, along with DMA, POR, PWM, and WDT peripherals.

Q: What compliance certifications apply to each part?

A: Both parts are ROHS3 compliant and REACH unaffected. The SPC564A80L7CFAR additionally carries AEC-Q100 automotive qualification.

Q: Can firmware developed for the SPC5644AF0MLU2 run on the SPC564A80L7CFAR?

A: Yes. Both parts use the same e200z4 processor core and instruction set. Firmware compatibility is maintained, though the higher clock speed of the SPC564A80L7CFAR may affect timing-dependent code sections.