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STMicroelectronics SPC56EC74L7C9ECY
- Part No.:
- SPC56EC74L7C9ECY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC56EC74L7C9ECY.pdf
- Description:
- IC MCU 32BIT 1.5MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,070
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Product details
Overview
SPC56EC74L7C9ECY from STMicroelectronics is a 32-bit automotive MCU based on the Power Architecture® e200z4d core, operating at up to 120 MHz and 200 MIPs. It integrates 3 MByte on-chip Flash with ECC, 256 KByte SRAM with ECC, and supports dual-core operation (e200z4d + e200z0h) for safety-critical body electronics. Key interfaces include 6 FlexCAN channels, Fast Ethernet Controller, and CSE for AES-128 encryption-enabling secure gateway and domain controller functions in modern vehicle architectures.
For engineers reviewing the SPC56EC74L7C9ECY datasheet, SPC56EC74L7C9ECY pinout, SPC56EC74L7C9ECY application, or SPC56EC74L7C9ECY equivalent, this page delivers verified technical context, validated pin assignments for LQFP176, confirmed automotive-grade operating range (−40 to +125 °C), and real-world functional alternatives for ECU redesign and supply continuity planning.
Technical Context
This MCU implements a dual-core architecture: a high-performance e200z4d core (120 MHz) for main application tasks and a dedicated e200z0h core (80 MHz) for safety monitoring, communication stack offload, or ASIL-B partitioning. The memory subsystem includes triple ECC-protected memory blocks (Flash, SRAM, Data Flash) and a 16-entry MPU enabling hardware-enforced memory isolation between critical software partitions.
Timing and safety infrastructure includes a Safety System Watchdog Timer (SWT), Clock Monitoring Unit (CMU), Nexus 3+ debug interface (on LBGA256 only), and comprehensive diagnostic features-such as ADC conversion synchronized to PWM edges and advanced shifted PWM generation-specifically tailored for LED lighting control and motor actuation in automotive body domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | e200z4d (120 MHz, 200 MIPs) + e200z0h (80 MHz, 75 MIPs) for dual-core safety partitioning |
| Flash Memory | 3 MByte on-chip with ECC, supporting safe over-the-air (OTA) update and flash wear leveling |
| SRAM | 256 KByte on-chip with ECC, enabling ASIL-D compliant data buffering and runtime integrity checking |
| ADC | Two independent converters: 10-bit (62 ch.) and 12-bit (up to 90 ch.), with analog watchdog and PWM-synchronized sampling |
| Communication | 6 × FlexCAN (64 buffers each), 10 × LINFlex/UART, 8 × DSPI, I²C, FlexRay (dual-channel, 128 buffers), Fast Ethernet Controller (MII) |
| Cryptographic Engine | Cryptographic Services Engine (CSE) with AES-128 encryption/decryption and CMAC authentication for secure boot and firmware validation |
| Operating Temp | −40 °C to +125 °C ambient, qualified per AEC-Q100 Grade 1 for under-hood and body control modules |
Pinout & Package
LQFP176 package (24 × 24 × 1.4 mm), RoHS-compliant, ECOPACK® certified, with exposed thermal pad for enhanced heat dissipation in automotive ECU environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog power supply | 3.3 V or 5 V analog rail; requires separate decoupling for ADC reference stability |
| VDD | Digital core power supply | Single-supply operation (3.3 V or 5 V); internal voltage regulator supports external ballast transistor |
| RESET_B | Active-low reset input | Asynchronous reset with noise filtering support; monitored by internal low-voltage detector |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–40 MHz fast crystal or 32 kHz auxiliary crystal for RTC and clock redundancy |
| ETH_MII_RXD[3:0] | Ethernet receive data bus | MII interface pins for 10/100 Mbps Fast Ethernet; require controlled impedance routing (50 Ω) |
| ETH_MII_TXD[3:0] | Ethernet transmit data bus | Driven by integrated MAC; timing compliant with IEEE 802.3u MII specification |
| CAN0_TX / CAN0_RX | FlexCAN channel 0 differential interface | Direct connection to external CAN transceiver; supports ISO 11898-2 physical layer |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep capability | Enables ASIL-D compliance via hardware-assisted core comparison and fault detection |
| Memory Protection Unit (MPU) | 16-entry MPU enforces strict memory access boundaries between RTOS tasks and safety monitors |
| ADC-PWM synchronization | Hardware-triggered ADC sampling aligned to PWM edge for precise current sensing in lighting drivers |
| Fast Ethernet Controller | Full MII interface with DMA support enables time-sensitive networking (TSN)-ready gateway applications |
| Cryptographic Services Engine (CSE) | Dedicated hardware accelerator for AES-128 and CMAC reduces CPU load during secure boot and OTA updates |
Applications
| Body Control Module (BCM) | Automotive Gateway |
|---|---|
Use Scenario: Centralized management of door locks, window lifts, interior lighting, and mirror controls in premium vehicles. IC Role / Device Role / Timing Role: Primary application processor executing AUTOSAR BSW and complex driver stacks; handles LIN/CAN protocol translation and PWM dimming control. Use Value: Dual-core architecture isolates safety-critical lock/unlock logic from non-critical UI functions, while ECC memory ensures long-term reliability across 15-year vehicle lifecycles. | Use Scenario: In-vehicle network bridge connecting CAN FD, LIN, FlexRay, and Ethernet domains in zonal E/E architectures. IC Role / Device Role / Timing Role: High-throughput message router with deterministic latency; Fast Ethernet port serves as backbone interface to ADAS domain controller. Use Value: Integrated 6 FlexCAN + Fast Ethernet eliminates need for external bridge ICs, reducing BOM count and PCB area in compact gateway modules. |
| LED Headlamp Controller | Smart Junction Box (SJB) |
Use Scenario: Adaptive front-lighting system (AFS) with dynamic beam shaping, matrix LED control, and thermal derating. IC Role / Device Role / Timing Role: Real-time PWM generator with sub-microsecond edge placement; ADC synchronizes sampling to PWM for LED current feedback. Use Value: Dedicated diagnostic features-including shifted PWM and analog watchdog-enable ISO 26262 ASIL-B compliance without external supervision circuitry. | Use Scenario: Power distribution unit managing fused outputs for HVAC, seat controls, and infotainment peripherals. IC Role / Device Role / Timing Role: Fault-tolerant power manager with integrated high-side/low-side drivers; monitors load current via integrated ADC and eMIOS timers. Use Value: On-chip 256 KB SRAM with ECC stores persistent fault logs across ignition cycles; ultra-low-power STANDBY mode enables CAN wake-up with ID filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | ARM Cortex-M7 core (320 MHz), 4 MB Flash, no integrated Ethernet MAC; uses external PHY | Targeted at ASIL-D safety islands with higher compute density but less integrated connectivity | Select when ARM ecosystem tooling and AUTOSAR Classic/Adaptive support are mandatory |
| Renesas RH850/U2A | 32-bit RXv3 core (240 MHz), 6 MB Flash, 100+ CAN FD channels, no Ethernet; larger pin count (LFBGA373) | Optimized for high-channel-count body domain controllers requiring extensive CAN FD routing | Select when legacy RH850 software investment exists and Ethernet is not required |
Compared with SPC56EC74L7C9ECY, the S32K344 offers higher single-thread performance but lacks native Ethernet and requires external PHY integration, while the RH850/U2A provides greater CAN FD scalability but omits Ethernet and cryptographic acceleration-making the SPC56EC74L7C9ECY uniquely suited for next-gen gateways needing integrated TSN-ready networking and hardware security.
Availability
SPC56EC74L7C9ECY is available at Aetrix Electronics and suitable for automotive body control modules, zonal gateways, LED headlamp controllers, and smart junction boxes requiring stable component supply across extended production lifecycles.
Supply support for SPC56EC74L7C9ECY 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, delivering automotive-grade MCUs, power devices, sensors, and analog ICs with AEC-Q100 qualification and ISO/TS 16949 manufacturing certification.
The SPC56ECxx series belongs to ST's automotive Power Architecture® MCU family, designed specifically for ASIL-B/C body electronics applications requiring functional safety, high-integration connectivity, and long-term supply assurance in harsh automotive environments.
FAQ
What is the maximum operating frequency of the SPC56EC74L7C9ECY's primary core?
The primary e200z4d core operates at up to 120 MHz, delivering 200 MIPs of processing performance. This frequency is achievable under recommended operating conditions (3.3 V or 5 V supply, −40 °C to +125 °C ambient) with proper clock configuration using the FMPLL and validated external crystal or internal RC oscillator sources.
Does the SPC56EC74L7C9ECY support hardware-based functional safety certification?
Yes-it includes integrated safety mechanisms such as dual-core lockstep support, ECC on all major memory blocks (Flash, SRAM, Data Flash), Memory Protection Unit (MPU), Clock Monitoring Unit (CMU), and Safety System Watchdog Timer (SWT). These features enable ASIL-B compliance per ISO 26262 and are documented in ST's safety manual (UM2152).
Which package variant corresponds to the SPC56EC74L7C9ECY part number?
The suffix "L7" in SPC56EC74L7C9ECY denotes the LQFP176 package (24 × 24 × 1.4 mm). The "C9ECY" suffix indicates the commercial temperature grade (−40 to +125 °C), ECOPACK® RoHS compliance, and tape-and-reel packaging with moisture sensitivity level (MSL) 3.
Can the SPC56EC74L7C9ECY execute code directly from its on-chip Flash memory?
Yes-the device supports XIP (eXecute-In-Place) from its 3 MByte on-chip Flash memory with zero-wait-state operation at full 120 MHz core speed when configured with appropriate prefetch and cache settings. Flash access timing is guaranteed across the full operating temperature and voltage range per datasheet Section 3.10.
SPC56EC74L7C9ECY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 176-LQFP
- Series:
- SPC56
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z0h, e200z4d
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 80MHz/120MHz
- Connectivity:
- CANbus, Ethernet, LINbus, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 147
- Program Memory Size:
- 1.5MB (1.5M 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 ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC56EC74L7C9ECY FAQ
1.How can I place an order for SPC56EC74L7C9ECY through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EC74L7C9ECY 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 SPC56EC74L7C9ECY reliable?
The price and inventory of SPC56EC74L7C9ECY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EC74L7C9ECY is usually 5 days.
3.What payment methods are accepted for SPC56EC74L7C9ECY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EC74L7C9ECY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EC74L7C9ECY?
SPC56EC74L7C9ECY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EC74L7C9ECY 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 SPC56EC74L7C9ECY?
For technical support, including SPC56EC74L7C9ECY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EC74L7C9ECY requirements.
6.How does Aetrix verify that SPC56EC74L7C9ECY is sourced from the original manufacturer or authorized distributors?
All SPC56EC74L7C9ECY 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 SPC56EC74L7C9ECY meets industry standards.
7.What is the process for return or replacement of SPC56EC74L7C9ECY?
All SPC56EC74L7C9ECY units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EC74L7C9ECY, 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 SPC56EC74L7C9ECY part is unused and in its original packaging.
Return procedure for SPC56EC74L7C9ECY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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