SPC56EL70L3CBFSR - 32-bit MCU, 1.5MB Flash, 128KB RAM | STMicroelectronics
MPN: SPC56EL70L3CBFSR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
SPC56EL70L3CBFSR Overview
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It integrates a processor core, memory (flash and RAM), and programmable input/output peripherals on a single chip. MCUs are the backbone of modern automotive electronics, industrial automation, and IoT devices, providing the intelligence to control sensors, actuators, and communication interfaces. The SPC56EL70L3CBFSR belongs to the SPC56 family of 32-bit MCUs, which are part of STMicroelectronics' broader automotive microcontroller portfolio, positioned between entry-level 8-bit MCUs and high-end application processors.
Key features of the SPC56EL70L3CBFSR include a 120 MHz e200z4d core with single-precision floating-point unit (FPU), 1.5 MB flash with ECC, 128 KB RAM with ECC, and a rich set of peripherals including multiple CAN, LIN, SPI, and FlexRay interfaces. The device supports a wide operating voltage range of 3.3V to 5V and is qualified to AEC-Q100 Grade 1 (-40°C to +125°C), making it suitable for under-hood automotive applications. It also includes advanced safety features such as a memory protection unit (MPU), cyclic redundancy check (CRC) unit, and a fault collection and control unit (FCCU) for ISO 26262 functional safety compliance.
From a technical architecture perspective, the SPC56EL70L3CBFSR uses a dual-core lockstep configuration (e200z4d and e200z0h) to achieve high diagnostic coverage for safety-critical applications. The device integrates a 10-bit ADC with up to 32 channels, multiple timers (eTPU, eMIOS), and a crossbar switch for efficient data flow. The flash memory is organized into multiple banks, allowing read-while-write operations for firmware updates without halting the system. The MCU also supports low-power modes, including stop and standby, to reduce power consumption in battery-powered applications.
Typical applications include engine control units (ECUs), transmission control, body control modules, battery management systems (BMS), and industrial automation controllers. The combination of high-speed processing, extensive communication interfaces, and functional safety features makes it ideal for real-time control loops and safety-critical systems.
When designing with this device, ensure proper decoupling of the power supply pins and follow the layout guidelines in the datasheet to minimize noise and electromagnetic interference. The device requires a stable clock source, typically a 8-40 MHz crystal, and supports an internal RC oscillator for startup. For functional safety applications, implement the recommended self-test routines and use the FCCU to manage fault handling.
Drop-in alternatives for SPC56EL70L3CBFSR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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SPC56EL70L3CBFSR
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$8.1 / Unit
View Datasheet →SPC56EL70L3CBFSR
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View Datasheet →SPC56EL70L3CBFSR
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View Datasheet →MPC5643L
⚡ Same Package ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
SPC56EL70L3CBFSR
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$8.1 / Unit
View Datasheet →SPC56EL70L3CBFSR Maximum Ratings & Electrical Characteristics
| Core | e200z4d (Power Architecture) |
| Core Frequency | 120 MHz |
| Flash Memory | 1.5 MB |
| RAM | 128 KB |
| Package | LQFP-144 |
| Operating Voltage | 3.3V to 5V |
| Operating Temperature | -40°C to +125°C |
| AEC-Q100 | Grade 1 |
| ADC | 10-bit, 32 channels |
| CAN | 3x FlexCAN |
| LIN | 2x LIN |
| SPI | 3x DSPI |
| FlexRay | 1x FlexRay |
| Timers | eTPU, eMIOS |
| Functional Safety | ISO 26262 ASIL-B |
| RoHS | Compliant |
SPC56EL70L3CBFSR Pin Configuration
| Pin 1 | VDD — Digital power supply |
| Pin 2 | VSS — Digital ground |
| Pin 3 | VDDA — Analog power supply |
| Pin 4 | VSSA — Analog ground |
| Pin 5 | XTAL — Crystal oscillator input |
| Pin 6 | EXTAL — Crystal oscillator output |
| Pin 7 | RESET — Reset input |
| Pin 8 | CAN0_TX — CAN0 transmit |
| Pin 9 | CAN0_RX — CAN0 receive |
| Pin 10 | LIN0_TX — LIN0 transmit |
| Pin 11 | LIN0_RX — LIN0 receive |
| Pin 12 | SPI0_SCK — SPI0 clock |
Typical Applications
SPC56EL70L3CBFSR is suitable for 6 applications: Engine Control Unit (ECU), Transmission Control Module, Battery Management System (BMS), Industrial Automation Controller, Body Control Module, Advanced Driver Assistance Systems (ADAS).
Engine Control Unit (ECU)
The SPC56EL70L3CBFSR is ideal for engine control units due to its 120 MHz e200z4d core, 1.5 MB flash, and advanced timers (eTPU, eMIOS) that handle real-time fuel injection and ignition timing. Its AEC-Q100 Grade 1 qualification ensures reliable operation in high-temperature engine compartments. The device's multiple CAN and LIN interfaces enable communication with other vehicle systems, while its functional safety features support ISO 26262 compliance for critical engine functions.
Recommended
Transmission Control Module
In transmission control, the SPC56EL70L3CBFSR provides the processing power and peripherals needed for gear shifting algorithms and solenoid control. Its 10-bit ADC with 32 channels monitors pressure and speed sensors, while the eTPU handles precise PWM generation for hydraulic valves. The FlexRay interface supports high-speed, deterministic communication with other ECUs, making it suitable for advanced automatic transmissions.
Recommended
Battery Management System (BMS)
The SPC56EL70L3CBFSR is well-suited for battery management systems in electric and hybrid vehicles. Its multiple ADC channels can monitor cell voltages and temperatures, while the CAN interface communicates with the vehicle's main controller. The device's low-power modes help conserve energy when the vehicle is idle, and its functional safety features ensure safe operation of the battery pack.
Recommended
Industrial Automation Controller
For industrial automation, the SPC56EL70L3CBFSR offers high-speed processing and a rich set of communication interfaces (CAN, SPI, LIN) to interface with sensors, actuators, and PLCs. Its wide operating temperature range and robust design make it suitable for factory floor environments. The device's timers and PWM outputs can control motors and valves with precision, while its memory protection unit enhances system reliability.
Recommended
Body Control Module
The SPC56EL70L3CBFSR can serve as the central controller for body electronics, managing lighting, windows, locks, and climate control. Its multiple LIN interfaces are ideal for connecting to smart actuators and sensors throughout the vehicle. The device's low-power modes help reduce battery drain when the vehicle is off, and its AEC-Q100 qualification ensures long-term reliability.
Recommended
Advanced Driver Assistance Systems (ADAS)
In ADAS applications, the SPC56EL70L3CBFSR provides the computational power and safety features needed for sensor fusion and decision-making. Its FlexRay interface supports high-bandwidth communication with radar and camera modules, while its functional safety features (ISO 26262 ASIL-B) ensure reliable operation in safety-critical scenarios. The device's high-speed ADC can process analog sensor signals in real-time.
Recommended
Recommended Products Summary
Engineering reference data for SPC56EL70L3CBFSR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SPC56EL70L3CBFSR | MPC5643L |
|---|---|---|---|
| Package | LQFP-144 | LQFP-144 | LQFP-144 |
| Brand | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core Frequency | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 1.5 MB | 1.5 MB | 1 MB |
| RAM | 128 KB | 128 KB | 128 KB |
| ADC Resolution | 10-bit | 10-bit | 10-bit |
| CAN Interfaces | 3x FlexCAN | 3x FlexCAN | 3x FlexCAN |
| FlexRay | 1x FlexRay | 1x FlexRay | 1x FlexRay |
Key Differentiators
- Higher flash memory capacity (vs MPC5643L)
- Same-brand availability (vs MPC5643L)
- Pin compatibility within family (vs MPC5643L)
Design Notes
Ensure stable power supply decoupling: place 100nF ceramic capacitors close to each VDD/VSS pair and a 10uF bulk capacitor near the power input. The device operates from 3.3V to 5V, so verify the supply voltage is within this range and has low ripple to avoid reset issues.
Follow the layout guidelines in the datasheet for the crystal oscillator: keep traces short and shielded, and place the crystal and load capacitors close to the XTAL/EXTAL pins. Use a ground plane to minimize noise and ensure proper grounding of the analog and digital sections.
The LQFP-144 package has a thermal resistance of approximately 30°C/W. For high-power applications, ensure adequate airflow or a heatsink. The maximum junction temperature is 150°C, so calculate power dissipation and verify the thermal budget.
Compliance Information
AEC-Q100 Grade 1 qualified. RoHS compliant per STMicroelectronics.
