SPC5644AF0MLU2 - 32-bit 120MHz 4MB Flash MCU | NXP
MPN: SPC5644AF0MLU2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.9 | $18.90 |
| 10 | $17.2 | $172.00 |
| 100 | $15.4 | $1,540.00 |
| 500 | $13.8 | $6,900.00 |
| 1,000 | $12.5 | $12,500.00 |
SPC5644AF0MLU2 Overview
A microcontroller (MCU) is a single-chip embedded processor that combines a CPU core, program memory, RAM, and peripheral interfaces in one integrated circuit. Within the system hierarchy, the SPC5644AF0MLU2 belongs to the MPC56xx / Qorivva family of 32-bit automotive MCUs, which sits between simple 8-bit controllers and multi-core application processors. Automotive powertrain and chassis systems rely on this class of device for deterministic real-time control under harsh electrical and thermal conditions.
Key features include the superscalar e200z4 core with variable-length instruction encoding (VLE) and two execution pipelines capable of retiring two integer or floating-point instructions per cycle, 4 MB of FLASH for large code images, 192 KB of RAM, and 84 general-purpose I/O lines. On-chip peripherals such as DMA, PWM, watchdog timer (WDT), and power-on reset (POR) reduce external component count in safety-relevant designs.
Technical depth: the Power Architecture e200z4 core is a proven real-time RISC engine widely deployed in engine management, where interrupt latency determinism and floating-point throughput matter more than peak DMIPS. The device is rated for -40C to +125C ambient operation, matching under-hood placement requirements, and is automotive-grade qualified per NXP's Qorivva qualification flow.
Typical applications include mid-range gasoline and direct-injection engine control units (ECU), advanced transmission controllers, body and gateway modules, and general industrial control where 32-bit real-time performance and CAN/LIN networking are required.
Design consideration: verify the supply architecture - MPC56xx family devices use multiple internal rails generated from a 5 V or 3.3 V input - and confirm FLASH emulation partitioning early, since the 4 MB array supports overlayed data/CodeFlash banks critical for calibration management.
This page synthesizes distributor pricing, drop-in same-family alternatives, design notes, and application guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for SPC5644AF0MLU2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with SPC5644AF0MLU2 (same form factor and footprint) — differing in Operating Temperature Range, Package, RoHS Status, Series, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SPC5644AF0MLU1
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$42.75 / Unit
View Datasheet →SPC5643AF0MLU2
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
SPC5643AF0MLU1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
SPC5642AF0MLU1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
SPC5644AF0MLU2 Maximum Ratings & Electrical Characteristics
| Core Processor | e200z4 Power Architecture |
| Core Size | 32-bit |
| Maximum Clock Frequency | 120 MHz |
| Program Memory Size | 4 MB (4M x 8) FLASH |
| RAM Size | 192 KB |
| Number of I/O | 84 |
| Connectivity | CANbus, EBI/EMI, LINbus, SCI, SPI |
| Peripherals | DMA, POR, PWM, WDT |
| Instruction Set | VLE (Variable Length Encoding), superscalar, 2 execution units |
| Operating Temperature | -40C to +125C |
| Supply Voltage | 1.2 V / 3.3 V / 5 V (family rating) |
| Package | 176-LQFP (24 x 24 mm, 0.5 mm pitch, 1.4 mm height) |
| Mounting Type | Surface Mount |
| Pin Count | 176 |
| Grade | Automotive Qualified |
| Part Status | Active |
| RoHS Status | Lead Free / RoHS Compliant (LQFP lead-free finish per package description) |
| Series | MPC56xx Qorivva (SPC5644A) |
SPC5644AF0MLU2 176-lqfp (24 x 24 mm, 0.5 mm pitch, 1.4 mm height) Pin Configuration Guide
Pin configuration for SPC5644AF0MLU2 (176-lqfp (24 x 24 mm, 0.5 mm pitch, 1.4 mm height) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for SPC5644AF0MLU2.
Refer to the datasheet for full pin configuration.
Typical Applications
SPC5644AF0MLU2 is suitable for 6 applications: Gasoline Engine Control Units (ECU), Advanced Transmission Control, Automotive Gateway and Body Control Modules, Industrial Motor Control and Automation, Safety-Relevant Real-Time Control Systems, Data Acquisition and Control Nodes.
Gasoline Engine Control Units (ECU)
The SPC5644AF0MLU2 was designed explicitly for mid-range gasoline and direct-injection engine control, per NXP's MPC564xA family description. Its 120 MHz superscalar e200z4 core executes crank-angle-synchronous combustion control loops deterministically, while floating-point execution units accelerate torque-model and lambda-control math without an external FPU. The 4 MB FLASH holds the full calibration dataset with overlay banks for multi-fuel or OBD variant strategies, and the CAN and LIN interfaces link the ECU to body and gateway networks. Its -40C to +125C rating supports direct under-hood mounting near the engine.
Recommended
Advanced Transmission Control
Automatic, dual-clutch, and CVT controllers benefit from the SPC5644AF0MLU2's combination of real-time core throughput and rich PWM resources. The on-chip PWM and DMA peripherals drive solenoid current-control loops for clutch and shift-pressure actuation, while the 120 MHz e200z4 core executes shift-strategy state machines with interrupt latencies tight enough for pressure-ramp timing. The 192 KB RAM supports adaptive shift-learning tables held in fast internal memory, and 4 MB FLASH retains multiple calibration sets per transmission platform variant, reducing SKU proliferation across vehicle programs.
Recommended
Automotive Gateway and Body Control Modules
NXP also positions this device family for automotive body control and gateway applications up to 120 MHz. The SPC5644AF0MLU2's multiple serial interfaces (CAN, LIN, SCI, SPI) plus an external bus interface allow it to bridge powertrain, chassis, and comfort domains, routing and prioritizing frames between networks. The 84 GPIO lines drive relays, lamp diagnostics, and switch matrices directly, while the 4 MB FLASH accommodates protocol stacks for multiple network standards simultaneously. The watchdog and POR peripherals support the fault-tolerance monitoring expected in body-domain controllers.
Recommended
Industrial Motor Control and Automation
In industrial drives and automation nodes, the SPC5644AF0MLU2 applies its automotive-grade rigor to motor control: the e200z4's floating-point pipelines execute field-oriented control (FOC) arithmetic at 120 MHz, the PWM block generates complementary gate-drive patterns with dead-time, and DMA offloads ADC sampling sequences from the CPU. The 125C rating suits drive enclosures with limited airflow, and the LQFP-176's perimeter leads enable visual solder inspection on industrial assembly lines. SPI connects isolated gate drivers and current-sense front ends while CAN links the drive to factory networks.
Recommended
Safety-Relevant Real-Time Control Systems
The Qorivva MPC56xx platform was architected for safety-oriented embedded control, and the SPC5644AF0MLU2 inherits that foundation: a watchdog timer for program-flow supervision, power-on reset supervision, and a mature Power Architecture core with decades of automotive field heritage. The deterministic superscalar e200z4 execution model simplifies worst-case execution-time analysis required in functional-safety workflows. Its 4 MB FLASH supports triple-redundant application images and diagnostic log storage, while 192 KB of RAM provides lock-step-style workspace partitioning under a real-time operating system.
Recommended
Data Acquisition and Control Nodes
The SPC5644AF0MLU2's external bus interface (EBI/EMI) and multiple SPI/SCI ports make it a strong host for external data-acquisition front ends. High-precision ADCs can be memory-mapped via EBI for zero-copy sample transfer, or clocked over SPI with DMA moving conversion results to the 192 KB RAM in real time. The 120 MHz core post-processes and filters streams while the CAN/LIN/SCI interfaces publish results to supervisory systems. This architecture suits test benches, durability rigs, and vehicle instrumentation recorders where automotive temperature rating is already required.
Recommended
Recommended Products Summary
Engineering reference data for SPC5644AF0MLU2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SPC5644AF0MLU1 | SPC5643AF0MLU2 | SPC5643AF0MLU1 | SPC5642AF0MLU1 |
|---|---|---|---|---|---|
| Package | 176-LQFP (24x24 mm, 0.5 mm pitch) | 176-LQFP (24x24 mm) - same | 176-LQFP (24x24 mm) - same | 176-LQFP (24x24 mm) - same | 176-LQFP (24x24 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Frequency | e200z4, 120 MHz | e200z4, 120 MHz | e200z4, 120 MHz | e200z4, 120 MHz | e200z4, 120 MHz |
| FLASH Memory | 4 MB | 4 MB | 3 MB | 3 MB | 2 MB |
| Connectivity | CAN, LIN, SCI, SPI, EBI/EMI | CAN, LIN, SCI, SPI, EBI/EMI | CAN, LIN, SCI, SPI, EBI/EMI | CAN, LIN, SCI, SPI, EBI/EMI | CAN, LIN, SCI, SPI, EBI/EMI |
Key Differentiators
- Largest FLASH in the same 176-LQFP footprint (vs SPC5643AF0MLU2)
- Balanced memory-to-cost point within family (vs SPC5642AF0MLU1)
- Same-die grade continuity (vs SPC5644AF0MLU1)
Design Notes
MPC56xx Qorivva devices operate from multiple internal rails (family rating 1.2 V / 3.3 V / 5 V). Use NXP's recommended system basis chip (e.g., MC33903 family) to sequence the core and I/O rails in the correct order at power-up; incorrect sequencing can latch the internal regulator. Decouple each supply pin with 100 nF ceramics placed within 2 mm of the pin, plus bulk 10 uF per rail. Verify 5 V input tolerance if the design is powered directly from the vehicle's regulated rail.
The LQFP-176 has a 0.5 mm lead pitch - specify solder-mask-defined pads per IPC-compatible land patterns and inspect with AOI rather than visual-only, since 0.5 mm pitch bridges are hard to see. Keep the JTAG/Nexus debug header wired even in production revisions; MPC56xx FLASH programming and calibration flashing both require debug access. Route the 8 MHz-to-40 MHz reference crystal close to the pins with guard ground to minimize jitter on CAN bit timing.
Distributor listings conflict on usable FLASH (3 MB vs 4 MB marketing vs total): the SPC5644AF0MLU2 total array is 4 MB, but reserve space for bootloader, calibration overlays, and emulation EEPROM when sizing the binary. The e200z4 requires explicit VLE instruction-set selection in the toolchain - code compiled for Book-E without VLE support will not run. Finally, LU2 vs LU1 ordering suffixes denote different grade/temperature codes; confirm the exact grade on your PO to avoid receiving the wrong automotive qualification level.
Compliance Information
Package description from datasheet-derived data states lead-free LQFP-176 construction. NXP lists the part under its Environmental Quality program on the product page; formal REACH, halogen-free, and conflict-minerals declarations should be obtained from NXP's environmental documentation portal.
