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STMicroelectronics SPC564L70L3BCOSY
- Part No.:
- SPC564L70L3BCOSY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
SPC564L70L3BCOSY.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,667
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Product details
Overview
SPC564L70L3BCOSY from STMicroelectronics is a 32-bit Power Architecture® automotive microcontroller with dual e200z4d cores operating up to 120 MHz, 2 MB flash with ECC, 192 KB SRAM with ECC, and SIL3/ASILD-certified safety architecture for chassis and safety-critical systems. It integrates FlexRay (10 Mbit/s), three FlexCAN 2.0B interfaces, two 12-bit ADCs, and Nexus Class 3+ debug support.
For engineers reviewing the SPC564L70L3BCOSY datasheet, SPC564L70L3BCOSY pinout, SPC564L70L3BCOSY application, or SPC564L70L3BCOSY equivalent, key selection criteria include ASIL-D fault containment metrics, lock-step vs. decoupled core mode configuration, FlexRay channel count and message buffer depth, and RWW EEPROM emulation capability.
Technical Context
The device implements a Sphere of Replication (SoR) covering CPU cores, eDMA controllers, and crossbar switch, with redundant outputs verified by RCCU and monitored by FCCU. Boot-time MBIST/LBIST and software-triggered ADC/flash BIST provide deterministic safety verification paths.
Its dual-core architecture supports both lock-step mode for functional safety compliance and decoupled parallel mode for high-throughput real-time control. The integrated Signal Processing Engine (SPE) and Variable Length Encoding (VLE) enhance deterministic execution efficiency in motor control and chassis domain controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE and SPE enabled for deterministic signal processing |
| Max Core Frequency | 120 MHz - enables sub-10 µs interrupt latency critical for brake-by-wire and steering control loops |
| Flash Memory | 2 MB with ECC - supports ASIL-D-compliant code storage and RWW for runtime parameter updates |
| SRAM | 192 KB with ECC - provides fault-tolerant data workspace for safety-critical task stacks and buffers |
| Safety Certification | SIL3 / ASIL-D per ISO 26262 - validated via SoR, FCCU, replicated watchdog, and MBIST/LBIST |
| FlexRay Interface | V2.1 Rev. A, 2 channels, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire backbone timing requirements |
| Operating Temperature | −40 °C to 125 °C ambient, −40 °C to 150 °C junction - qualified for under-hood chassis ECU deployment |
Pinout & Package
LQFP100 package (14 × 14 × 1.4 mm), thermally enhanced for automotive under-hood operation. Pinout conforms to ST's SPC56XL70 series layout with dedicated supply, ground, clock, reset, Nexus debug, FlexRay, FlexCAN, DSPI, LINFlexD, eTimer, FlexPWM, ADC, and SIUL GPIO groups.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main power supply input | 3.0–3.6 V single-supply rail powering core logic, memory, and most peripherals |
| VDDA | Analog power supply | Independent 3.0–3.6 V rail for ADC and analog comparators to minimize digital noise coupling |
| VRX1 / VRX2 | FlexRay differential receive inputs | High-immunity termination points for FlexRay bus signals; require external 130 Ω termination |
| VTX1 / VTX2 | FlexRay differential transmit outputs | Current-mode drivers compliant with FlexRay physical layer spec V2.1 Rev. A |
| NEXUS_TDI / TDO / TMS / TCK | Nexus Class 3+ debug interface | Supports real-time trace, non-intrusive breakpoints, and safety-critical runtime monitoring |
| ADC0_IN0–ADC0_IN7 | ADC0 analog input channels | Eight dedicated pins for 12-bit sampling; configurable for CTU-synchronized capture with eTimer/FlexPWM |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step + Decoupled Core Mode | Hardware-selectable operation: lock-step for ASIL-D compliance or decoupled for performance scaling in multi-domain ECUs |
| Replicated Safety Subsystem | FCCU, RCCU, NMI, dual eDMA, dual INTC, and replicated temperature sensor enable end-to-end fault detection and containment |
| On-chip RWW EEPROM Emulation | Uses flash sectors with background wear leveling and atomic write handling - eliminates external EEPROM in safety-critical data logging |
| Programmable Cross Triggering Unit (CTU) | Synchronizes ADC conversions with eTimer compare events and FlexPWM edge transitions - essential for motor phase current sampling |
| FlexRay V2.1 with 64 Message Buffers | Dual-channel controller with hardware timestamping and dynamic slot allocation - supports time-triggered chassis networks |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
|
Use Scenario: Real-time torque assist calculation, motor position feedback processing, and fail-operational redundancy management in column-assist EPS systems. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lock-step core validation and FlexRay-based actuator coordination. Use Value: Integrated SPE and 120 MHz core frequency achieve ≤5 µs current loop update; dual ADCs with CTU enable synchronous three-phase current sampling. |
Use Scenario: Coordinating hydraulic pressure modulation, wheel speed fusion, and vehicle dynamics arbitration across multiple brake actuators. IC Role / Device Role / Timing Role: Central chassis domain controller interfacing with FlexRay backbone, FlexCAN sensor nodes, and safety-critical PWM valve drivers. Use Value: 64 FlexRay message buffers and hardware timestamping ensure deterministic 5 ms cycle times; replicated watchdog prevents single-point failure in pressure control. |
| Active Suspension Controller | Steer-by-Wire Interface Module |
|
Use Scenario: High-bandwidth closed-loop control of magnetorheological dampers using accelerometer and suspension travel feedback. IC Role / Device Role / Timing Role: Real-time signal processor running adaptive filtering and PID tuning algorithms with guaranteed worst-case execution time. Use Value: e200z4d SPE unit accelerates FFT-based road profile analysis; 192 KB ECC SRAM hosts multiple concurrent control task contexts. |
Use Scenario: Translating torque/angle commands from steer-by-wire HMI into synchronized actuator drive signals while monitoring redundancy paths. IC Role / Device Role / Timing Role: Safety gateway between CAN FD human-machine interface and dual FlexRay actuator buses with hardware-enforced separation. Use Value: Dual FlexCAN 2.0B interfaces handle HMI communication; FlexRay channels deliver <100 µs jitter for torque command distribution to left/right rack actuators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC564L70L5BCOSY | Same die, 2.5 MB flash (vs. 2 MB), identical pinout and safety architecture | Preferred where larger OTA update partition or extended diagnostic log storage is required | Select when firmware growth projection exceeds 1.8 MB post-ECC overhead |
| TC397XP-128F300N DC | TriCore™ architecture, 300 MHz, 4 MB flash, AURIX™ safety concept (not Power Architecture®) | Higher compute throughput but different toolchain, safety library, and peripheral abstraction layer | Choose when migrating legacy TriCore designs or requiring >200 MHz deterministic performance |
Compared with SPC564L70L3BCOSY, the L5 variant offers headroom for future firmware expansion without changing PCB or safety qualification, while the TC397 demands full ecosystem revalidation but delivers higher raw MIPS for complex model-predictive control.
Availability
SPC564L70L3BCOSY is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, active suspension, and steer-by-wire systems requiring stable component supply and long-term automotive lifecycle support.
Supply support for SPC564L70L3BCOSY 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power solutions with broad IP portfolios and AEC-Q100-qualified manufacturing.
This device belongs to the SPC56XL70 family-designed specifically for ISO 26262 ASIL-D chassis domain controllers requiring lock-step safety, FlexRay backbone integration, and real-time deterministic processing in harsh environments.
FAQ
What safety certifications does SPC564L70L3BCOSY hold?
SPC564L70L3BCOSY is certified to SIL3 per IEC 61508 and ASIL-D per ISO 26262, supported by on-chip Sphere of Replication, FCCU fault reporting, boot-time MBIST/LBIST, and replicated safety peripherals including watchdog, temperature sensor, and interrupt controllers.
Does this MCU support EEPROM emulation without external components?
Yes-it provides built-in RWW (Read-While-Write) capability in flash memory with hardware-managed wear leveling and atomic sector erase/write, enabling robust EEPROM emulation for calibration data, fault logs, and runtime parameters without external non-volatile memory.
How many FlexRay message buffers are available and what is their allocation method?
The integrated FlexRay module provides 64 message buffers, statically allocated across two independent channels. Buffer assignment is configured via FRAY_MBCR register settings during initialization, supporting mixed static/dynamic frame scheduling per FlexRay specification V2.1 Rev. A.
What debug interface does SPC564L70L3BCOSY use and what capabilities does it offer?
It features Nexus Class 3+ interface with real-time instruction trace, data trace, non-intrusive breakpoints, and safety-aware debug access control. The interface supports concurrent debugging and runtime monitoring without disrupting lock-step operation or safety state machines.
SPC564L70L3BCOSY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- SPC56xL
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4d
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, LINbus, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 57
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.63V
- Data Converters:
- A/D 32x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC564L70L3BCOSY FAQ
1.How can I place an order for SPC564L70L3BCOSY through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC564L70L3BCOSY 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 SPC564L70L3BCOSY reliable?
The price and inventory of SPC564L70L3BCOSY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC564L70L3BCOSY is usually 5 days.
3.What payment methods are accepted for SPC564L70L3BCOSY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC564L70L3BCOSY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC564L70L3BCOSY?
SPC564L70L3BCOSY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC564L70L3BCOSY 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 SPC564L70L3BCOSY?
For technical support, including SPC564L70L3BCOSY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC564L70L3BCOSY requirements.
6.How does Aetrix verify that SPC564L70L3BCOSY is sourced from the original manufacturer or authorized distributors?
All SPC564L70L3BCOSY 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 SPC564L70L3BCOSY meets industry standards.
7.What is the process for return or replacement of SPC564L70L3BCOSY?
All SPC564L70L3BCOSY units undergo pre-shipment inspection (PSI). If there is an issue with SPC564L70L3BCOSY, 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 SPC564L70L3BCOSY part is unused and in its original packaging.
Return procedure for SPC564L70L3BCOSY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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