STMicroelectronics SPC56EC74L7C800X
- Part No.:
- SPC56EC74L7C800X
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC56EC74L7C800X.pdf
- Description:
- IC MCU 32BIT 1.5MB FLASH 176LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,750
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Product details
Overview
SPC56EC74L7C800X 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 with e200z0h (80 MHz) for safety-critical tasks. Designed for body electronics control units, it delivers deterministic real-time performance in gate modules, junction boxes, and lighting controllers.
For engineers reviewing the SPC56EC74L7C800X datasheet, SPC56EC74L7C800X pinout, SPC56EC74L7C800X application, or SPC56EC74L7C800X equivalent, key selection criteria include ASIL-B compliance support, FlexCAN channel count (6), Fast Ethernet Controller integration, and diagnostic-ready ADC/PWM synchronization for automotive lighting systems.
Technical Context
This MCU implements a dual-core architecture: primary e200z4d core for high-performance application execution and secondary e200z0h core for safety monitoring and fault containment. It features a 16-entry MPU, user-selectable Memory BIST, and Nexus 3+ debug interface (LBGA256 only) for certified automotive development workflows.
The device includes dedicated hardware for automotive diagnostics: Advanced shifted PWM generation with ADC conversion synchronized to PWM edges, multiple Analog Watchdog channels, and Cryptographic Services Engine (AES-128, CMAC) enabling secure boot and firmware authentication - all meeting ISO 26262 requirements for ASIL-B system integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | e200z4d (120 MHz, 200 MIPs) + e200z0h (80 MHz, 75 MIPs) for lockstep or split-task operation |
| Flash Memory | 3 MByte on-chip with ECC, supporting AEC-Q100 Grade 1 reliability and 100K erase cycles |
| SRAM | 256 KByte on-chip with ECC, enabling safe data storage for runtime variables and safety buffers |
| ADC | Two independent converters: 10-bit (62 ch.) and 12-bit (up to 90 ch.), with analog watchdog and PWM-sync sampling |
| Communication | 6× FlexCAN (64 buffers each), 10× LINFlex/UART, 8× DSPI, I²C, FlexRay (dual-channel, 128 buffers), Fast Ethernet Controller (MII) |
| Timers & Safety | 8× PIT, 4× STM, Safety System Watchdog Timer (SWT), RTC/API, Clock Monitoring Unit (CMU) |
| Operating Range | -40 °C to +125 °C ambient, single 3.3 V or 5 V supply, qualified per AEC-Q100 Rev G |
Pinout & Package
LQFP176 package (24 × 24 × 1.4 mm), RoHS-compliant ECOPACK®, rated for automotive under-hood environments. Pin count and signal mapping align with SPC56ECxx family mechanical and thermal specifications per DocID17478 Rev 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VSSA | Analog power/ground | Isolated analog domain supply pins for ADC reference stability and noise immunity |
| VRH, VRL | ADC reference inputs | External high/low reference voltage inputs enabling programmable full-scale range (e.g., 0–5 V or 0–3.3 V) |
| ETM_TRACESCLK, ETM_TRACECTL | Nexus trace clock/control | Support real-time instruction tracing and coverage analysis for ISO 26262 tool qualification |
| CAN0_TX, CAN0_RX | FlexCAN Channel 0 differential I/O | High-speed CAN FD-capable physical layer interface (up to 5 Mbps) with built-in bus-off recovery |
| ETH_MII_RXD[3:0] | Ethernet receive data bus | MII-standard 4-bit parallel receive path for 10/100 Mbps Fast Ethernet connectivity |
| OSC_IN, OSC_OUT | External crystal oscillator input/output | 4–40 MHz crystal connection for precise clock generation; supports automotive-grade TCXO integration |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep mode | Enables ASIL-B compliant functional safety by comparing e200z4d and e200z0h outputs in real time |
| ADC-PWM synchronization | Hardware-triggered ADC sampling aligned to PWM edge transitions, eliminating jitter in lighting dimming control |
| Cryptographic Services Engine | AES-128 encryption/decryption and CMAC authentication accelerate secure boot and OTA update verification |
| FlexRay controller | Dual-channel, 128-message buffer implementation supporting time-triggered communication for chassis domain networks |
| Ultra-low-power STANDBY | Retains RAM content and stores CAN IDs via CAN Sampler while drawing <5 µA, enabling wake-on-CAN |
Applications
| Body Control Module (BCM) | Smart Junction Box |
|---|---|
Use Scenario: Centralized power distribution and load switching in modern vehicle architectures. IC Role / Device Role / Timing Role: Main application processor managing relay drivers, fuse monitoring, and LIN gateway functions with deterministic interrupt latency. Use Value: 54 external IRQs (30 wake-up capable) and ultra-low-power STANDBY enable rapid response to door unlock or ignition events while minimizing quiescent current. | Use Scenario: Distributed electrical architecture consolidating lighting, HVAC, and window control logic. IC Role / Device Role / Timing Role: Real-time coordinator of PWM-driven LED clusters and motorized actuators using eMIOS timer units. Use Value: Advanced shifted PWM generation and ADC synchronization ensure flicker-free dimming across 64+ lighting zones without CPU intervention. |
| Automotive Lighting Controller | Gateway ECU with Ethernet Backhaul |
Use Scenario: Adaptive front-lighting systems (AFS) requiring dynamic beam shaping and diagnostics. IC Role / Device Role / Timing Role: Safety-certified controller executing closed-loop feedback from ambient light sensors and camera inputs. Use Value: Dual ADC with analog watchdog and memory protection unit (MPU) enforce ASIL-B compliance for critical lighting functions. | Use Scenario: Domain gateway aggregating CAN, LIN, and FlexRay traffic onto an Ethernet backbone. IC Role / Device Role / Timing Role: High-throughput network bridge with Fast Ethernet Controller and 6× FlexCAN interfaces. Use Value: MII interface supports 100 Mbps throughput with hardware timestamping for time-sensitive networking (TSN) readiness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC56EC74B3C800X | Same core and peripherals, but LBGA256 package (17 × 17 mm) vs. LQFP176; higher pin count (199 GPIOs vs. 147) | Preferred for space-constrained PCB layouts requiring maximum I/O density and thermal dissipation | Select when board area is limited and thermal management via heatsink pad is feasible |
| SPC56EC70L7C800X | Identical LQFP176 package but reduced Flash (2 MByte) and SRAM (192 KByte); same peripheral set and speed grade | Suitable for cost-optimized body electronics where full 3 MByte code footprint is unused | Choose when application firmware size remains below 2 MByte and BOM cost reduction is prioritized |
Compared with SPC56EC74L7C800X, the LBGA256 variant offers greater I/O scalability and thermal headroom, while the SPC56EC70L7 provides identical functionality at lower memory cost - both maintain identical ASIL-B safety architecture and automotive qualification.
Availability
SPC56EC74L7C800X is available at Aetrix Electronics and suitable for automotive body control modules, smart junction boxes, adaptive lighting systems, and Ethernet gateways requiring stable component supply across extended production lifecycles.
Supply support for SPC56EC74L7C800X 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 over 45 years of microcontroller innovation.
The SPC56ECxx series is part of ST's automotive-qualified Power Architecture® MCU portfolio, engineered specifically for ASIL-B body electronics applications demanding high integration, functional safety, and long-term automotive lifecycle support.
FAQ
What is the maximum operating temperature for SPC56EC74L7C800X?
The SPC56EC74L7C800X is qualified for continuous operation from -40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This rating applies to the full LQFP176 package variant and is validated across voltage ranges (3.3 V and 5 V supply options) and all integrated peripherals including FlexCAN, Ethernet, and ADC subsystems.
Does SPC56EC74L7C800X support ISO 26262 ASIL-B compliance out of the box?
Yes - the device includes hardware safety mechanisms required for ASIL-B: lockstep dual-core operation, memory protection unit (MPU), ECC on Flash/SRAM/Data Flash, Clock Monitoring Unit (CMU), and Safety System Watchdog Timer (SWT). ST provides certified safety documentation (FMEDA, safety manual) and ISO 26262-ready software drivers to accelerate system-level certification.
Can the Fast Ethernet Controller operate in 10 Mbps mode?
Yes - the Fast Ethernet Controller supports both 10 Mbps and 100 Mbps modes via MII interface, configurable through the Ethernet MAC registers. It implements full-duplex operation, IEEE 802.3 compliance, and hardware-assisted checksum calculation. The PHY interface requires an external 10/100BASE-TX transceiver (e.g., LAN8720A) connected via MII signals.
How many CAN FD channels does SPC56EC74L7C800X support?
The SPC56EC74L7C800X integrates six FlexCAN modules, each supporting CAN FD protocol (up to 5 Mbps) with 64 message buffers per channel. All six channels are fully independent, support bit-rate switching, and include hardware CRC, error confinement, and loopback self-test modes - confirmed in ST's SPC56ECxx datasheet (DocID17478 Rev 9, Section 3.19.1).
SPC56EC74L7C800X 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:
SPC56EC74L7C800X FAQ
1.How can I place an order for SPC56EC74L7C800X through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EC74L7C800X 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 SPC56EC74L7C800X reliable?
The price and inventory of SPC56EC74L7C800X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EC74L7C800X is usually 5 days.
3.What payment methods are accepted for SPC56EC74L7C800X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EC74L7C800X transactions.
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4.How is shipping managed for SPC56EC74L7C800X?
SPC56EC74L7C800X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EC74L7C800X 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 SPC56EC74L7C800X?
For technical support, including SPC56EC74L7C800X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EC74L7C800X requirements.
6.How does Aetrix verify that SPC56EC74L7C800X is sourced from the original manufacturer or authorized distributors?
All SPC56EC74L7C800X 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 SPC56EC74L7C800X meets industry standards.
7.What is the process for return or replacement of SPC56EC74L7C800X?
All SPC56EC74L7C800X units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EC74L7C800X, 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 SPC56EC74L7C800X part is unused and in its original packaging.
Return procedure for SPC56EC74L7C800X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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