MPC555LFAVR40 Equivalent & Substitute Parts

Part Overview

The MPC555LFAVR40 is a PowerPC MPC5xx series 32-bit single-core microcontroller manufactured by NXP USA Inc. It features 448KB FLASH memory, 26KB RAM, and operates at 40MHz with a supply voltage range of 2.7V to 5.5V. The device is packaged in a 272-PBGA (27x27) configuration and includes integrated CANbus, SCI, SPI, and UART/USART connectivity interfaces.

This part carries a "Not For New Designs" product status, indicating it has reached end-of-life or is being phased out. Identifying suitable substitute components is necessary for ongoing production support, legacy system maintenance, and design continuity where this microcontroller is currently deployed.

Substiute Parts

MPC555LFAVR40

NXP USA Inc.In Stock: 1768MPC555LFAVR40 Datasheet

Current PartRFQ

TMS5701114CZWTQQ1

Texas InstrumentsIn Stock: 2394TMS5701114CZWTQQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPC555LFAVR40 is based on functional equivalence across core architectural and connectivity parameters. The primary substitute identified is the TMS5701114CZWTQQ1 from Texas Instruments.

Substitution logic is determined by the following key parameters:

• Core Processing Architecture: Both parts provide 32-bit processing capability with real-time control features suitable for embedded applications
• Memory Configuration: Sufficient FLASH and RAM capacity to support equivalent firmware implementations
• Connectivity Interfaces: Presence of CANbus, SPI, UART/USART, and EBI/EMI interfaces for system integration
• I/O Count: Comparable number of general-purpose I/O pins (101 pins on both devices)
• Peripheral Support: Inclusion of PWM, WDT, and POR functionality for control and safety applications
• Package Compatibility: Surface-mount BGA packaging suitable for high-density PCB layouts
• Compliance Standards: RoHS3 compliance and automotive-grade qualification where applicable
• Operating Temperature Range: Support for extended industrial temperature specifications

Parameter Comparison

Engineering Selection Recommendations

The TMS5701114CZWTQQ1 is identified as a functional substitute for the MPC555LFAVR40 based on equivalent I/O count, shared connectivity interfaces (CANbus, SPI, UART/USART, EBI/EMI), and comparable peripheral support (PWM, WDT, POR).

Key considerations for selection:

• Product Status: The MPC555LFAVR40 is designated "Not For New Designs," while the TMS5701114CZWTQQ1 maintains Active product status, ensuring long-term availability and manufacturing support
• Compliance: Both devices are ROHS3 compliant with identical MSL ratings (3, 168 Hours), meeting environmental and reliability standards
• Automotive Qualification: The TMS5701114CZWTQQ1 carries AEC-Q100 qualification, providing additional assurance for automotive and safety-critical applications
• Memory Expansion: The substitute offers increased FLASH (1MB vs. 448KB), RAM (128KB vs. 26KB), and includes 64KB EEPROM, providing greater headroom for firmware and data storage
• Processing Performance: The TMS5701114CZWTQQ1 operates at 180MHz compared to 40MHz, delivering significantly higher computational capacity
• Package Footprint: The substitute uses a 337-NFBGA (16x16) package versus 272-PBGA (27x27), requiring PCB layout redesign
• Voltage Supply Range: The MPC555LFAVR40 supports 2.7V to 5.5V, while the substitute operates at 1.14V to 3.6V, necessitating power supply circuit modifications
• Temperature Range: The MPC555LFAVR40 supports -55°C to 125°C; the substitute supports -40°C to 125°C, which may be limiting for extreme low-temperature applications

Frequently Asked Questions (FAQ)

Q: What makes the TMS5701114CZWTQQ1 a suitable substitute for the MPC555LFAVR40?

A: Both microcontrollers provide 32-bit processing with 101 I/O pins, CANbus connectivity, SPI, UART/USART interfaces, and core peripherals (PWM, WDT, POR). They share identical MSL ratings and RoHS3 compliance, making them functionally equivalent for embedded control applications.

Q: Are there any package compatibility issues between these parts?

A: Yes. The MPC555LFAVR40 uses a 272-PBGA (27x27) package, while the TMS5701114CZWTQQ1 uses a 337-NFBGA (16x16) package. PCB layout and footprint redesign is required for substitution.

Q: What voltage supply modifications are necessary?

A: The MPC555LFAVR40 operates at 2.7V to 5.5V, while the TMS5701114CZWTQQ1 requires 1.14V to 3.6V. Power supply circuits must be redesigned to accommodate the lower voltage range of the substitute.

Q: Does the substitute support the same operating temperature range?

A: The MPC555LFAVR40 operates from -55°C to 125°C, while the TMS5701114CZWTQQ1 operates from -40°C to 125°C. Applications requiring operation below -40°C cannot use the substitute without additional thermal management considerations.

Q: What are the memory advantages of the substitute?

A: The TMS5701114CZWTQQ1 provides 1MB FLASH (versus 448KB), 128KB RAM (versus 26KB), and includes 64KB EEPROM. This expanded memory capacity supports larger firmware implementations and additional data storage without external memory components.

Q: Is the substitute suitable for automotive applications?

A: The TMS5701114CZWTQQ1 is AEC-Q100 qualified, making it suitable for automotive and safety-critical applications. The MPC555LFAVR40 does not specify automotive qualification.

Q: What connectivity differences exist between these parts?

A: Both support CANbus, EBI/EMI, SCI, SPI, and UART/USART. The TMS5701114CZWTQQ1 additionally provides I2C, LINbus, and MibSPI interfaces, offering expanded communication options.

Q: Are there any peripheral differences?

A: Both include POR, PWM, and WDT. The TMS5701114CZWTQQ1 additionally integrates DMA (Direct Memory Access), enabling more efficient data transfer operations.

Q: What is the processing performance difference?

A: The TMS5701114CZWTQQ1 operates at 180MHz compared to the MPC555LFAVR40 at 40MHz, providing 4.5 times greater computational throughput for real-time control tasks.

Q: Are both parts RoHS compliant?

A: Yes, both the MPC555LFAVR40 and TMS5701114CZWTQQ1 are ROHS3 compliant with identical MSL ratings of 3 (168 Hours).