SPC5603BF2MLH6 Equivalent & Substitute Parts

Part Overview

The SPC5603BF2MLH6 is a 32-bit single-core microcontroller from NXP Semiconductors' MPC56xx Qorivva series, designed for embedded automotive and industrial applications. This device features an e200z0h core operating at 64MHz with 384KB FLASH memory, 28KB RAM, and 64KB EEPROM. The microcontroller integrates multiple communication interfaces including CANbus, I2C, LINbus, SCI, and SPI, along with essential peripherals such as DMA, PWM, and watchdog timer functionality. The part is currently active in production and ROHS3 compliant. Equivalent substitute parts may be required due to inventory constraints, design optimization, or application-specific performance requirements.

Substiute Parts

SPC5603BF2MLH6

NXP SemiconductorsIn Stock: 923SPC5603BF2MLH6 Datasheet

Current PartRFQ

SPC570S50E1CEFAR

STMicroelectronicsIn Stock: 2749SPC570S50E1CEFAR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SPC570S50E1CEFAR qualifies as an equivalent substitute based on the following substitution criteria:

Compatible Core Architecture: Both parts utilize the e200z0h processor core, ensuring instruction set compatibility and software portability across designs.

Package Compatibility: The SPC570S50E1CEFAR is supplied in 64-eTQFP (10x10) packaging, which maintains the same 10x10mm footprint as the original 64-LQFP package, allowing for direct PCB layout compatibility.

Memory Hierarchy Alignment: While the substitute provides increased FLASH capacity (512KB vs. 384KB) and enhanced RAM (48KB vs. 28KB), these represent functional improvements that do not compromise backward compatibility. The EEPROM reduction (32KB vs. 64KB) must be evaluated against application requirements.

Electrical Specifications: The substitute operates within an overlapping supply voltage range (2.7V ~ 5.5V vs. 3V ~ 5.5V), supporting the same 3.3V and 5V logic levels used in automotive and industrial systems.

Connectivity and Peripherals: Both devices integrate CANbus, LINbus, and SPI interfaces with DMA and watchdog timer support, meeting core communication requirements.

Compliance and Qualification: The substitute carries AEC-Q100 automotive qualification and ROHS3 compliance, matching the regulatory requirements of the original part.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution: The SPC570S50E1CEFAR is suitable as a direct substitute when the application can accommodate the reduced EEPROM capacity (32KB vs. 64KB). The increased FLASH and RAM capacity, combined with higher clock speed and improved ADC resolution, provide functional enhancements without introducing compatibility issues.

Compliance Alignment: Both parts maintain ROHS3 compliance and operate within identical temperature ranges (-40°C to 125°C). The substitute's AEC-Q100 automotive qualification ensures suitability for automotive-grade applications.

Package Consideration: The 64-eTQFP exposed pad variant of the substitute offers improved thermal dissipation compared to the standard LQFP package, beneficial for applications requiring enhanced heat management.

Voltage Supply Compatibility: The substitute's extended lower voltage limit (2.7V vs. 3V) provides additional flexibility for low-power applications while maintaining full compatibility with standard 3.3V and 5V supply rails.

Frequently Asked Questions (FAQ)

Q: Can the SPC570S50E1CEFAR replace the SPC5603BF2MLH6 in existing designs?

A: Yes, provided the application does not depend on the full 64KB EEPROM capacity of the original part. The substitute's identical core processor, matching package footprint, and overlapping electrical specifications support direct substitution. Software compiled for the SPC5603BF2MLH6 will execute on the SPC570S50E1CEFAR without modification.

Q: What are the key differences in memory configuration?

A: The substitute provides 512KB FLASH (vs. 384KB), 48KB RAM (vs. 28KB), but reduced EEPROM at 32KB (vs. 64KB). Applications relying on EEPROM for non-volatile data storage must verify that 32KB capacity is sufficient.

Q: Are the packages mechanically compatible?

A: Both devices use 10x10mm footprints. The original part is 64-LQFP; the substitute is 64-eTQFP with an exposed pad. PCB layouts designed for 64-LQFP will accommodate the 64-eTQFP variant. The exposed pad on the substitute should be connected to ground for optimal thermal performance.

Q: What is the impact of the 80MHz vs. 64MHz clock speed difference?

A: The substitute's higher clock speed (80MHz) provides 25% additional processing performance. Applications designed for 64MHz operation will function correctly at 80MHz without modification, though power consumption may increase proportionally.

Q: Are there connectivity differences between the two parts?

A: Both parts support CANbus, LINbus, and SPI interfaces. The original includes I2C and SCI; the substitute specifies UART/USART. Verify that UART/USART functionality meets application communication requirements.

Q: What certifications apply to the substitute part?

A: The SPC570S50E1CEFAR carries AEC-Q100 automotive qualification and ROHS3 compliance, matching the regulatory requirements of automotive and industrial applications.