My Inquiry
My Account
NXP Semiconductors SPC5646BF0VLU1
- Part No.:
- SPC5646BF0VLU1
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC5646BF0VLU1.pdf
- Description:
- IC MCU 32BIT 3MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,307
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SPC5646BF0VLU1 from NXP Semiconductors is a dual-core automotive microcontroller featuring an e200z4d CPU (up to 120 MHz) and e200z0h CPU (up to 80 MHz), 3 MB on-chip flash, 256 KB SRAM, FlexCAN, FlexRay, Fast Ethernet, and Cryptographic Services Engine (CSE). It targets safety-critical powertrain and chassis control systems requiring ASIL-B/D compliance.
For engineers reviewing the SPC5646BF0VLU1 datasheet, SPC5646BF0VLU1 pinout, SPC5646BF0VLU1 application, or SPC5646BF0VLU1 equivalent, key selection criteria include dual-core deterministic timing, hardware memory protection (16-region MPU), autonomous low-power wake-up via RTC (1 ms resolution), and integrated CSE for secure boot and firmware authentication.
Technical Context
The SPC5646BF0VLU1 implements a crossbar switch architecture enabling concurrent access to flash, SRAM, and peripherals by both e200z4d and e200z0h cores. Its Dual-Core Interrupt Controller (INTC) routes interrupt sources selectively to either core or both, supporting asymmetric multiprocessing.
It integrates a Safety Enhanced Software Watchdog Timer (SWT) with keyed functionality, FMPLL for programmable frequency modulation, and Cross Trigger Unit (CTU) for synchronized ADC conversions triggered by eMIOS timers or PIT - essential for deterministic sensor sampling in real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | e200z4d (120 MHz) + e200z0h (80 MHz); enables asymmetric task partitioning with hard real-time guarantees on primary core. |
| Flash Memory | 3 MB code flash with page buffers; reduces instruction fetch latency and supports A/B swap for safe OTA updates. |
| SRAM | 256 KB on-chip SRAM; sufficient for dual-core RTOS stacks, CAN/FlexRay message buffers, and control algorithm variables. |
| ADC | One 10-bit (27/33 ch) + one 12-bit (5/10 ch) ADC; supports simultaneous sampling of engine sensors (e.g., throttle, knock) with CTU-triggered synchronization. |
| Communication | 6 × FlexCAN (64 MB each), 1 × FlexRay (128 MB), 1 × FEC (10/100 Mbps); meets AUTOSAR-compliant multi-bus vehicle network requirements. |
| Security | Cryptographic Services Engine (CSE); accelerates AES-128/256, SHA-256, and RSA-2048 for secure boot, firmware signing, and key management. |
| Power Modes | STOP, HALT, STANDBY; RTC supports autonomous wake-up at 1 ms resolution (max 2 s timeout) without CPU intervention. |
Pinout & Package
SPC5646BF0VLU1 is packaged in a 208-pin LQFP (28 mm × 28 mm, 0.5 mm pitch) with dedicated voltage domains (VDD_HV_A, VDD_HV_B, VDD_HV_ADC0/1) and separate analog/low-voltage supplies (VDD_LV, VSS_LV).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Bidirectional reset input with Schmitt trigger | Active-low reset with internal weak pull-up; noise-filtered for robust operation in automotive EMI environments. |
| XTAL / EXTAL | Crystal oscillator inputs | Supports 4–40 MHz external crystal; enables precise clock source for FMPLL and time-critical peripherals like RTC and FEC. |
| VDD_HV_A / VDD_HV_B | I/O supply domains | Independent 3.3 V domains isolate high-speed digital I/O (e.g., DSPI, LINFlexD) from mixed-signal sections to reduce crosstalk. |
| VDD_HV_ADC0 / VDD_HV_ADC1 | Analog supply rails | Dedicated 3.3 V supplies for 10-bit and 12-bit ADCs; minimize digital switching noise coupling into precision analog measurements. |
| PE[12]–PF[15] | FlexCAN channel 0–5 pins | Multiplexed CANH/CANL signals; support ISO 11898-1 compliant differential signaling with built-in bus-off recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core deterministic execution | e200z4d handles time-critical control loops (e.g., fuel injection), while e200z0h manages diagnostics, communication stacks, and background tasks - no software arbitration needed. |
| Hardware memory protection | 16-region MPU enforces strict isolation between OS kernel, application tasks, and peripheral drivers - required for ISO 26262 ASIL-B/D certification evidence. |
| Autonomous low-power wake-up | RTC with 1 ms resolution wake-up timer operates independently in STOP mode; eliminates need for external wake-up ICs in battery-sensitive modules. |
| Secure boot acceleration | CSE performs AES-128 decryption and SHA-256 hashing in hardware; reduces secure boot time to <50 ms and prevents side-channel attacks during firmware validation. |
| Synchronized sensor acquisition | CTU links eMIOS timer events to ADC start-of-conversion, ensuring sub-microsecond jitter for engine cylinder pressure or camshaft position sampling. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) Domain Controller |
|---|---|
Use Scenario: Real-time combustion control using cylinder pressure feedback and wideband O2 sensor data. IC Role / Device Role / Timing Role: Primary controller executing deterministic PID loops at 10 kHz with sub-1 µs jitter; manages CAN/FlexRay comms to transmission and body ECUs. Use Value: Dual-core separation ensures control loop integrity while diagnostics run concurrently; 3 MB flash enables complex model-based control algorithms with calibration tables. | Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic inputs for collision avoidance. IC Role / Device Role / Timing Role: Central processing node running AUTOSAR adaptive platform; interfaces via FEC to camera modules and FlexRay to radar units. Use Value: Hardware-accelerated CSE secures OTA updates; 256 KB SRAM buffers multi-sensor frame data before GPU offload; FlexRay guarantees deterministic 10 µs latency for critical actuator commands. |
| Electric Power Steering (EPS) Module | Brake-by-Wire Control Unit |
Use Scenario: Torque assist calculation with motor current, steering angle, and vehicle speed inputs. IC Role / Device Role / Timing Role: Safety-critical controller implementing ASIL-D torque path; uses MPU to isolate safety monitor core from application core. Use Value: SWT with key sequence prevents unauthorized watchdog resets; dual-core lockstep not required due to hardware-enforced partitioning and error-correcting memory. | Use Scenario: Redundant hydraulic pressure control with dual independent solenoid drivers. IC Role / Device Role / Timing Role: Fault-tolerant controller with two independent FlexCAN channels feeding redundant brake controllers; RTC triggers periodic self-test sequences. Use Value: 6 × FlexCAN channels enable full redundancy across primary and backup networks; STCU-managed MBIST validates flash/SRAM integrity before each drive cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5646CK0VLU1 | Same package and core configuration, but rated for -40°C to +125°C (vs. SPC5646BF0VLU1's -40°C to +105°C); higher thermal grade. | Required for under-hood applications exceeding 105°C ambient (e.g., turbocharged engine bays). | Select when extended temperature qualification is mandatory per OEM thermal spec; otherwise SPC5646BF0VLU1 suffices for most chassis/powertrain locations. |
| SPC564A70L7 | Single e200z4d core (120 MHz), 2 MB flash, no FlexRay or FEC; includes enhanced safety features (lockstep, ECC on all memories). | Targeted at ASIL-D brake or steering systems where lockstep redundancy is mandated over dual-core flexibility. | Choose when functional safety architecture requires hardware lockstep over dual-core independence; trade-off is loss of FlexRay/Ethernet connectivity. |
Compared with MPC5646CK0VLU1 and SPC564A70L7, the SPC5646BF0VLU1 delivers optimal balance of dual-core performance, multi-protocol connectivity (FlexRay + FEC), and CSE-based security - making it ideal for next-generation zonal architectures where domain controllers require both compute headroom and secure interconnectivity.
Availability
SPC5646BF0VLU1 is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, and electric power steering modules requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.
Supply support for SPC5646BF0VLU1 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in Power Architecture and functional safety.
The SPC5646BF0VLU1 belongs to NXP's SPC56 family of automotive MCUs, designed specifically for ASIL-B/D powertrain and chassis control applications demanding high reliability, hardware security, and multi-bus networking.
FAQ
What is the maximum operating frequency of the SPC5646BF0VLU1's primary CPU core?
The SPC5646BF0VLU1's e200z4d core operates at up to 120 MHz. This frequency is achievable under recommended operating conditions (ambient temperature ≤105°C, VDD_HV = 3.3 V ± 0.3 V). The e200z0h secondary core runs at up to 80 MHz, or at half-system frequency if the e200z4d is clocked above 80 MHz - a configuration managed by the configurable system clock divider. SPC5646BF0VLU1's FMPLL supports precise frequency synthesis to maintain stability across voltage and temperature variations.
Does the SPC5646BF0VLU1 support hardware-based cryptographic functions?
Yes, the SPC5646BF0VLU1 integrates a Cryptographic Services Engine (CSE) that accelerates AES-128/256 encryption/decryption, SHA-256 hashing, and RSA-2048 signature verification. This enables secure boot, firmware authentication, and key management without burdening the CPU. The CSE is accessible via dedicated registers and supports key storage in protected memory regions. SPC5646BF0VLU1's CSE implementation complies with EVITA Medium profile requirements for automotive security.
How many CAN interfaces does the SPC5646BF0VLU1 provide, and what is their buffer capacity?
The SPC5646BF0VLU1 includes six FlexCAN modules, each with 64 message buffers. These support ISO 11898-1 compliant CAN 2.0B communication at bit rates up to 1 Mbps. Each module features dedicated timestamping, ID filtering, and automatic bus-off recovery. The CAN Sampler function allows capture of CAN message IDs during low-power modes - a feature critical for wake-on-CAN functionality in always-on vehicle networks. SPC5646BF0VLU1's six independent CAN channels enable full redundancy or multi-domain connectivity (e.g., powertrain, chassis, infotainment).
What package type and pin count does the SPC5646BF0VLU1 use?
The SPC5646BF0VLU1 is supplied in a 208-pin LQFP package measuring 28 mm × 28 mm with 0.5 mm lead pitch. This package provides 177 configurable general-purpose I/O pins, organized across multiple voltage domains (VDD_HV_A, VDD_HV_B, VDD_HV_ADC0/1) and isolated analog supplies to minimize noise coupling. Pin assignments follow NXP's standardized MPC5646C family layout, with RESET, XTAL/EXTAL, and power supply pins positioned for optimal PCB decoupling. SPC5646BF0VLU1's pinout is fully documented in Section 3 of the MPC5646C datasheet (Rev. 7).
Is the SPC5646BF0VLU1 qualified for automotive safety standards such as ISO 26262?
Yes, the SPC5646BF0VLU1 is designed to support ISO 26262 ASIL-B and ASIL-D applications. It includes hardware safety mechanisms such as a 16-region Memory Protection Unit (MPU), Safety Enhanced Software Watchdog Timer (SWT) with key sequence, Crossbar switch error detection, and STCU-managed MBIST for memory testing. While the device itself is not "certified," its safety features and documentation (including FMEDA reports and safety manuals) enable system-level ASIL decomposition. SPC5646BF0VLU1's dual-core architecture allows separation of safety-critical and non-safety-critical software - a key requirement for ASIL-D decomposition in modern automotive ECUs.
SPC5646BF0VLU1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- e200z4d
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, LINbus, SCI, SPI
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 147
- Program Memory Size:
- 3MB (3M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 27x10b, 5x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5646BF0VLU1 FAQ
1.How can I place an order for SPC5646BF0VLU1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5646BF0VLU1 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 SPC5646BF0VLU1 reliable?
The price and inventory of SPC5646BF0VLU1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5646BF0VLU1 is usually 5 days.
3.What payment methods are accepted for SPC5646BF0VLU1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5646BF0VLU1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5646BF0VLU1?
SPC5646BF0VLU1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5646BF0VLU1 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 SPC5646BF0VLU1?
For technical support, including SPC5646BF0VLU1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5646BF0VLU1 requirements.
6.How does Aetrix verify that SPC5646BF0VLU1 is sourced from the original manufacturer or authorized distributors?
All SPC5646BF0VLU1 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 SPC5646BF0VLU1 meets industry standards.
7.What is the process for return or replacement of SPC5646BF0VLU1?
All SPC5646BF0VLU1 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5646BF0VLU1, 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 SPC5646BF0VLU1 part is unused and in its original packaging.
Return procedure for SPC5646BF0VLU1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SPC5646BF0VLU1 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
