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NXP Semiconductors SPC5644AF0MLU1R
- Part No.:
- SPC5644AF0MLU1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC5644AF0MLU1R.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,516
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Product details
Overview
SPC5644AF0MLU1R from NXP Semiconductors (formerly Freescale) is a 32-bit Power Architecture® microcontroller designed for automotive powertrain and chassis control systems. It integrates a 150 MHz e200z4 core, 4 MB on-chip flash with ECC and Read-While-Write, 192 KB SRAM with ECC, triple FlexCAN interfaces (64 message buffers each), dual eQADCs (40-channel, 12-bit, 688 ns min conversion), and FlexRay V2.1 (10 Mbit/s, 128 message objects). It operates in extended temperature range (–40°C to +125°C) and supports ASIL-B functional safety requirements.
For engineers reviewing the SPC5644AF0MLU1R datasheet, SPC5644AF0MLU1R pinout, SPC5644AF0MLU1R application, or SPC5644AF0MLU1R equivalent, key selection considerations include its dual eTPU2 modules (32 channels + reaction module), FMPLL with frequency modulation capability, Nexus Class 3+ debug support, 176-pin LQFP package with 120 GPIOs, and integrated calibration bus for ECU production test.
Technical Context
The SPC5644AF0MLU1R implements a superscalar e200z4 core with VLE encoding, dual execution units, and SPE/FP support-enabling up to 2 integer or floating-point instructions per cycle and 4 MAC operations per cycle. Its memory subsystem includes 8 KB instruction cache (2-/4-way), 192 KB SRAM with standby mode, and 4 MB flash with RWW and ECC-managed via a 5×4 crossbar switch supporting concurrent CPU, eDMA, FlexRay, and EBI transactions.
Real-time peripheral integration includes three DSPI modules (two with LVDS support), three eSCI interfaces (one with MSC uplink), 24-channel eMIOS, and two eQADCs with six command queues, trigger/DMA synchronization, and decimation filtering. Safety features comprise a 16-entry MPU, CRC unit with three submodules, junction temperature sensor (±20°C accuracy), and software watchdog with windowing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | e200z4 Power Architecture®, 150 MHz max - enables deterministic real-time execution with VLE compression and DSP extensions. |
| Flash Memory | 4 MB with ECC and Read-While-Write - supports safe over-the-air updates and concurrent code execution during reprogramming. |
| SRAM | 192 KB with ECC and 32 KB standby mode - retains critical state during low-power stop modes without external backup. |
| FlexCAN | 3 × controllers, 64 message buffers each - provides redundant CAN communication paths for ASIL-B-compliant powertrain gateways. |
| eQADC | 2 × 12-bit converters, 40 multiplexed inputs, 688 ns min conversion - meets fast-sampling requirements for engine position and pressure sensing. |
| FlexRay | V2.1, 10 Mbit/s, dual/single channel, 128 message objects with ECC - delivers deterministic, fault-tolerant communication for brake-by-wire and steer-by-wire. |
| Package | 176-pin LQFP (24 × 24 mm) - pinout-compatible with MPC5634M and MPC5534, enabling migration within same PCB footprint. |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive applications per AEC-Q100 Grade 1. |
Pinout & Package
SPC5644AF0MLU1R is housed in a 176-pin Low-Profile Quad Flat Package (LQFP) measuring 24 mm × 24 mm with 0.5 mm pitch. The package supports industrial and automotive thermal cycling and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main supply (5 V) | Primary power domain for core, memory, and most peripherals; requires external ballast resistor per datasheet Section 3.6. |
| VDD_IO | I/O supply (3.3 V) | Independent voltage domain for GPIOs and serial interfaces-enables mixed-voltage system interfacing. |
| VRST | Reset input | Asynchronous active-low reset with glitch filtering; initiates full chip reset including PLL, clock tree, and memory controllers. |
| FSCLK | FlexRay clock input | Accepts 40 MHz reference for FlexRay module timing; must be phase-aligned with system clock for deterministic latency. |
| EVTO | External trigger output | Signals trace capture events to external debug tools via Development Trigger Semaphore (DTS) protocol. |
| MSC_UPLINK | Micro Second Channel uplink | Carries time-stamped diagnostic data from eSCI_A to external calibration tool-used in production ECU flashing and validation. |
Key Features
| Feature | Design Value |
|---|---|
| Nexus Class 3+ debug interface | Enables real-time trace, non-intrusive profiling, and hardware breakpoints on e200z4 core-critical for ISO 26262 tool qualification. |
| FMPLL with triangle-wave frequency modulation | Reduces electromagnetic emissions by spreading spectrum up to ±2% depth at up to 100 kHz-meets CISPR 25 Class 5 radiated emission limits. |
| eTPU2 with reaction module | 32 programmable timing channels + 6-output reaction module-supports precise ignition timing, fuel injection sequencing, and PWM generation for electric power steering. |
| Calibration bus (16-bit, muxed) | Direct access to flash and RAM for factory programming and runtime parameter tuning-eliminates need for external JTAG-based calibration hardware. |
| Boot Assist Module (BAM) | On-chip CAN/SCI/FlexRay bootloader-enables secure firmware updates via vehicle network without external programmer. |
| Power management controller (PMC) | Supports slow, stop, and standby modes with wake-up on CAN, FlexRay, or GPIO-reduces quiescent current to <100 µA in stop mode. |
Applications
| Engine Control Unit (ECU) | Brake-by-Wire System |
|---|---|
|
Use Scenario: Real-time combustion control in gasoline direct injection engines with cylinder deactivation and turbocharger boost management. IC Role / Device Role / Timing Role: Primary host MCU executing closed-loop air-fuel ratio, spark timing, and knock detection algorithms at ≤1 ms cycle intervals. Use Value: Dual eQADCs provide synchronized sampling of wideband O2 sensors and MAP/MAF signals; eTPU2 generates sub-microsecond-accurate ignition pulses. |
Use Scenario: Fault-tolerant actuation control for electro-hydraulic brake systems requiring dual-redundant communication and safety monitoring. IC Role / Device Role / Timing Role: Safety-critical controller managing FlexRay backbone and dual CAN buses while performing ASIL-D decomposition via software partitioning. Use Value: FlexRay V2.1 with ECC ensures deterministic message delivery; MPU enforces strict memory isolation between safety and non-safety partitions. |
| Electric Power Steering (EPS) | Chassis Domain Controller |
|
Use Scenario: High-bandwidth torque assist and road feel emulation using brushless motor control and steering angle feedback. IC Role / Device Role / Timing Role: Real-time motor control MCU coordinating eTPU2-generated PWM, eQADC current sensing, and CAN FD diagnostics. Use Value: Reaction module delivers three independent PWM outputs per channel for 3-phase inverter control; 150 MHz core sustains 20 kHz FOC loop rates. |
Use Scenario: Centralized vehicle dynamics coordination integrating yaw rate, lateral acceleration, and wheel speed data across multiple ECUs. IC Role / Device Role / Timing Role: Gateway and aggregator MCU routing FlexRay, CAN, and LIN traffic while performing sensor fusion preprocessing. Use Value: 5×4 crossbar switch enables concurrent FlexRay receive, CAN transmit, and eQADC sampling without bus contention; 120 GPIOs support discrete sensor inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5643L | Same e200z4 core but 2 MB flash, 128 KB SRAM, no FlexRay, single eQADC, 176 LQFP only. | Limited to mid-tier powertrain applications without FlexRay or dual ADC redundancy. | Select when cost-sensitive designs omit FlexRay and require only one high-speed ADC channel set. |
| SPC560P50L5 | e200z0 core (80 MHz), 1 MB flash, 80 KB SRAM, 2 × FlexCAN, no FlexRay or eTPU2. | Suitable for body control modules or HVAC where deterministic timing and high-speed peripherals are not required. | Choose for non-safety-critical applications needing lower performance and reduced BOM cost. |
Compared with SPC5644AF0MLU1R, MPC5643L offers reduced memory and peripheral count for cost-constrained powertrain nodes, while SPC560P50L5 targets entry-level automotive control with simpler architecture and no FlexRay/eTPU2-making SPC5644AF0MLU1R the only option among the three supporting ASIL-B chassis control with FlexRay backbone integration.
Availability
SPC5644AF0MLU1R is available at Aetrix Electronics and suitable for automotive powertrain control, brake-by-wire systems, electric power steering, and chassis domain controllers requiring stable component supply across long product lifecycles.
Supply support for SPC5644AF0MLU1R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and automotive-grade reliability.
The SPC5644AF0MLU1R belongs to NXP's SPC56xx family of automotive MCUs, engineered specifically for ASIL-B compliant powertrain and chassis applications demanding high computational throughput, deterministic I/O, and robust communication stacks (FlexRay, CAN FD, LIN).
FAQ
What is the maximum operating frequency of the SPC5644AF0MLU1R core?
The SPC5644AF0MLU1R features a 150 MHz e200z4 Power Architecture® core-the maximum guaranteed operating frequency across its full –40°C to +125°C temperature range and 4.5–5.5 V supply. This frequency enables real-time execution of complex control algorithms such as model-predictive engine management and torque vectoring, with the FMPLL providing stable clock synthesis from a 4–40 MHz crystal source. The SPC5644AF0MLU1R maintains this performance while supporting VLE instruction compression and dual-issue superscalar execution.
Does the SPC5644AF0MLU1R support functional safety standards like ISO 26262?
Yes, the SPC5644AF0MLU1R is designed to support ASIL-B compliance per ISO 26262. It includes hardware safety mechanisms such as ECC on flash and SRAM, a 16-entry MPU for memory isolation, CRC units with three independent submodules, a junction temperature sensor with ±20°C accuracy, and Nexus Class 3+ debug for trace-based verification. These features are documented in the SPC5644AF0MLU1R safety manual and enable systematic fault detection and mitigation in safety-critical automotive applications.
What communication interfaces does the SPC5644AF0MLU1R include for automotive networking?
The SPC5644AF0MLU1R integrates three FlexCAN controllers (64 message buffers each), one FlexRay V2.1 module (10 Mbit/s, dual/single channel, 128 message objects with ECC), three eSCI interfaces (one with MSC uplink), and three DSPI modules (two with LVDS support). This combination supports simultaneous operation of CAN FD-capable gateways, FlexRay backbones for brake/steer-by-wire, and high-speed SPI sensor interfaces-all managed via the 5×4 crossbar switch to prevent bus contention. The SPC5644AF0MLU1R uses these interfaces to meet stringent automotive timing and fault-tolerance requirements.
How does the SPC5644AF0MLU1R handle analog signal acquisition for engine control?
The SPC5644AF0MLU1R includes two enhanced queued analog-to-digital converters (eQADCs), each supporting up to 40 multiplexed 12-bit inputs with a minimum conversion time of 688 ns. They feature six independent command queues, hardware-triggered sampling (including from eMIOS or FlexCAN), DMA synchronization, and decimation filtering-enabling precise, time-aligned acquisition of crankshaft position, throttle angle, and wideband oxygen sensor signals. The SPC5644AF0MLU1R uses this capability to execute closed-loop combustion control at sub-millisecond intervals.
Is the SPC5644AF0MLU1R pin-compatible with other members of the MPC56xx family?
Yes, the SPC5644AF0MLU1R in 176-pin LQFP is pinout-compatible with the MPC5634M and MPC5534 devices, allowing PCB reuse across different performance tiers. This compatibility extends to power, ground, reset, and primary peripheral pins-including CAN, eSCI, DSPI, and GPIO assignments-though certain advanced features (e.g., FlexRay, second eQADC, eTPU2) map to dedicated pins not present on lower-tier variants. The SPC5644AF0MLU1R maintains this compatibility while delivering higher memory density and expanded peripheral sets.
SPC5644AF0MLU1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 150MHz
- Connectivity:
- CANbus, EBI/EMI, LINbus, SCI, SPI
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 4MB (4M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 5.25V
- Data Converters:
- A/D 40x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5644AF0MLU1R FAQ
1.How can I place an order for SPC5644AF0MLU1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5644AF0MLU1R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SPC5644AF0MLU1R reliable?
The price and inventory of SPC5644AF0MLU1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5644AF0MLU1R is usually 5 days.
3.What payment methods are accepted for SPC5644AF0MLU1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5644AF0MLU1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5644AF0MLU1R?
SPC5644AF0MLU1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5644AF0MLU1R order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SPC5644AF0MLU1R?
For technical support, including SPC5644AF0MLU1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5644AF0MLU1R requirements.
6.How does Aetrix verify that SPC5644AF0MLU1R is sourced from the original manufacturer or authorized distributors?
All SPC5644AF0MLU1R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SPC5644AF0MLU1R meets industry standards.
7.What is the process for return or replacement of SPC5644AF0MLU1R?
All SPC5644AF0MLU1R units undergo pre-shipment inspection (PSI). If there is an issue with SPC5644AF0MLU1R, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SPC5644AF0MLU1R part is unused and in its original packaging.
Return procedure for SPC5644AF0MLU1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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