SPC5644CF0CLU8R Equivalent & Substitute Parts

Part Overview

The SPC5644CF0CLU8R is a 32-bit dual-core microcontroller from NXP USA Inc.'s MPC56xx Qorivva series, featuring 1.5MB FLASH memory and operating at 80MHz/120MHz. This device is classified as Not For New Designs, indicating it has reached end-of-life status. Organizations currently using this microcontroller in production or maintenance applications require equivalent alternatives to ensure supply chain continuity and support for ongoing system requirements.

Substiute Parts

SPC5644CF0CLU8R

NXP USA Inc.In Stock: 888SPC5644CF0CLU8R Datasheet

Current PartRFQ

SPC564A70L7CFAY

STMicroelectronicsIn Stock: 2377SPC564A70L7CFAY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPC5644CF0CLU8R is determined by the following critical parameters:

Package Compatibility: The 176-LQFP (24x24) surface mount package is the primary mechanical constraint. Substitute parts must use identical package geometry to ensure PCB layout compatibility without redesign.

Core Architecture: The e200z4 processor family forms the basis for functional equivalence. While the main part features dual-core architecture, single-core variants within the same processor family maintain instruction set compatibility and peripheral integration patterns.

Memory Configuration: Program memory capacity of 1.5MB or greater ensures software compatibility. Substitute parts with equal or larger FLASH capacity can accommodate existing firmware without modification.

Voltage Supply Range: Operating voltage between 3V and 5.5V is required for direct substitution in existing power distribution networks.

Connectivity Interfaces: CANbus, LINbus, SCI, and SPI interfaces are standard across the MPC56xx/SPC56 product families and form the basis for peripheral compatibility.

Peripheral Set: DMA, POR, PWM, and WDT functionality must be present in substitute parts to maintain system-level feature parity.

The SPC564A70L7CFAY meets these substitution criteria through identical package geometry, compatible processor architecture, superior memory capacity, and equivalent peripheral integration.

Parameter Comparison

Engineering Selection Recommendations

The SPC564A70L7CFAY is the manufacturer-recommended substitute for the SPC5644CF0CLU8R. This recommendation is based on the following engineering factors:

Product Status Alignment: The SPC564A70L7CFAY maintains Active product status, ensuring long-term availability and manufacturer support. The original SPC5644CF0CLU8R is classified as Not For New Designs, making it unsuitable for ongoing procurement.

Compliance and Certification: The SPC564A70L7CFAY carries AEC-Q100 automotive qualification, providing enhanced reliability documentation and traceability. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.

Package Geometry: Identical 176-LQFP (24x24) packaging eliminates PCB redesign requirements and allows direct socket compatibility in existing hardware implementations.

Memory Capacity: The substitute part provides 2MB FLASH memory, exceeding the original 1.5MB specification. This additional capacity accommodates firmware growth without architectural constraints.

Processor Compatibility: The e200z4 single-core processor maintains instruction set compatibility with the dual-core e200z4d/e200z0h architecture of the original part, ensuring software portability with minimal or no modification.

Peripheral Feature Parity: Both parts integrate identical core peripherals (DMA, POR, PWM, WDT) and share CANbus, LINbus, SCI, and SPI connectivity, maintaining system-level functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the SPC564A70L7CFAY be used as a direct replacement without PCB modifications?

A: Yes. Both parts use the 176-LQFP (24x24) package with identical pin assignments and mechanical footprint. No PCB layout changes are required for physical substitution.

Q: What are the differences in core architecture between the main part and substitute?

A: The SPC5644CF0CLU8R features dual-core e200z4d/e200z0h processors, while the SPC564A70L7CFAY uses a single-core e200z4 processor. Both share the same instruction set architecture, making software compatibility straightforward for most applications.

Q: Does the substitute part support the same connectivity interfaces?

A: Both parts support CANbus, LINbus, SCI, and SPI interfaces. The original part includes Ethernet and I2C, while the substitute includes EBI/EMI. Applications requiring Ethernet or I2C must evaluate alternative solutions or implement external interface controllers.

Q: What is the impact of the voltage supply range difference?

A: The original part operates at 3V ~ 5.5V, while the substitute operates at 1.14V ~ 1.32V. This significant difference requires power supply redesign. The substitute's lower voltage range is typical for modern automotive-grade microcontrollers and may require new voltage regulation circuitry.

Q: Is firmware migration required when switching to the SPC564A70L7CFAY?

A: Firmware migration depends on application-specific features. The shared e200z4 processor family ensures core instruction compatibility. Applications using dual-core specific features or Ethernet/I2C interfaces require code evaluation and potential modification.

Q: What is the operating temperature range difference?

A: The original part operates from -40°C to 85°C, while the substitute operates from -40°C to 125°C. The extended upper temperature range of the substitute provides additional thermal margin for automotive and industrial applications.

Q: Why does the substitute have lower RAM capacity?

A: The SPC564A70L7CFAY provides 128K x 8 RAM compared to the original 192K x 8. Applications with high RAM requirements must verify that reduced memory capacity is acceptable for their specific use case.

Q: What certifications does the substitute part carry?

A: The SPC564A70L7CFAY carries AEC-Q100 automotive qualification, indicating compliance with automotive reliability and quality standards. Both parts maintain ROHS3 compliance and REACH unaffected status.