SR5E1E7 - High-Performance Microcontroller | STMicroelectronics
MPN: SR5E1E7 ✓ Hoạt độngSR5E1E7 Tóm tắt
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals on a single chip. MCUs are the brains of countless electronic devices, from automotive engine control units (ECUs) to industrial robots and IoT sensors. They are part of the broader category of embedded processors, which also includes microprocessors (MPUs) and digital signal processors (DSPs). The SR5E1E7 sits at the high-performance end of the MCU spectrum, offering the processing power and peripheral set needed for demanding real-time applications.
Key features of the SR5E1E7 include a rich set of communication interfaces: 6x CAN-FD, 4x UART, 4x SPI, 2x I2C, and 1x Ethernet MAC, making it ideal for automotive gateways and industrial networking. It also integrates a 12-bit ADC with up to 24 channels, a 12-bit DAC, and advanced timers for precise motor control and PWM generation. The device supports functional safety up to ASIL-B, with built-in self-test (BIST) and error-correcting code (ECC) on both flash and SRAM, ensuring reliable operation in safety-critical environments.
From a technical architecture perspective, the SR5E1E7 leverages a dual-core lockstep configuration for safety-critical applications, where two identical cores execute the same code and compare results to detect faults. This is complemented by a memory protection unit (MPU) and a secure hardware extension (SHE) for cryptographic operations, enabling secure boot and secure communication. The device operates over a supply voltage range of 3.3V to 5V, with multiple low-power modes to optimize energy consumption in battery-powered or energy-harvesting systems.
Typical applications include automotive body control modules, battery management systems (BMS), industrial motor drives, and smart grid infrastructure. In automotive body control, the SR5E1E7 manages lighting, windows, and door locks, while its CAN-FD interfaces allow seamless integration with the vehicle's network. For industrial motor drives, the advanced timers and high-resolution PWM enable precise speed and torque control, improving efficiency and reducing mechanical stress.
When designing with the SR5E1E7, ensure proper decoupling of the power supply pins with 100nF and 10uF capacitors placed close to the device. The LQFP-176 package requires careful PCB layout to minimize parasitic inductance and ensure thermal dissipation. Use the internal voltage regulator for core logic, and connect the VDDA pin to a clean analog supply for optimal ADC performance. For safety-critical applications, implement the recommended external watchdog and voltage monitoring circuits to complement the internal safety mechanisms.
Bộ thay thế dễ dàng lắp đặt cho SR5E1E7 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
SR5E1E6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
SR5E1E8
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
SR5E1E7 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M7 |
| Tần số xung maksimum | 400 MHz |
| Flash Memory | 2 MB |
| SRAM | 1 MB |
| Supply Voltage Range | 3.3 V to 5 V |
| Hộp | LQFP-176 |
| Khoảng nhiệt độ hoạt động | -40C to +125C |
| Number of CAN-FD Interfaces | 6 |
| Number of UART Interfaces | 4 |
| Number of SPI Interfaces | 4 |
| Number of I2C Interfaces | 2 |
| Ethernet MAC | 1 |
| ADC Resolution | 12-bit |
| Number of ADC Channels | 24 |
| DAC Resolution | 12-bit |
| Functional Safety | ASIL-B |
| Trạng thái RoHS | Compliant |
Cấu hình chân SR5E1E7
| Chân 1 | VDD — Power supply (3.3V-5V) |
| Chân 2 | VSS — Ground |
| Chân 3 | PA0 — GPIO / ADC input |
| Chân 4 | PA1 — GPIO / ADC input |
| Chân 5 | PA2 — GPIO / UART TX |
| Chân 6 | PA3 — GPIO / UART RX |
| Chân 7 | PA4 — GPIO / SPI CS |
| Chân 8 | PA5 — GPIO / SPI SCK |
| Chân 9 | PA6 — GPIO / SPI MISO |
| Chân 10 | PA7 — GPIO / SPI MOSI |
| Chân 11 | PB0 — GPIO / CAN-FD TX |
| Chân 12 | PB1 — GPIO / CAN-FD RX |
| Chân 13 | PB2 — GPIO / I2C SCL |
| Chân 14 | PB3 — GPIO / I2C SDA |
| Chân 15 | PB4 — GPIO / PWM output |
| Chân 16 | PB5 — GPIO / PWM output |
| Chân 17 | VDDA — Analog power supply |
| Chân 18 | VSSA — Analog ground |
| Chân 19 | NRST — Reset (active low) |
| Chân 20 | BOOT0 — Boot mode selection |
Ứng dụng tiêu biểu
SR5E1E7 phù hợp cho 6 Áp dụngs: Automotive Body Control Module, Battery Management System (BMS), Industrial Motor Drive, Smart Grid Infrastructure, Medical Device Control, IoT Gateway.
Automotive Body Control Module
The SR5E1E7 is ideal for automotive body control modules (BCMs) that manage lighting, windows, door locks, and other body functions. Its 6x CAN-FD interfaces enable seamless communication with the vehicle's network, while the high clock speed and rich peripheral set allow efficient control of multiple actuators and sensors. The device's functional safety features (ASIL-B) ensure reliable operation in safety-critical systems. In a typical BCM, the SR5E1E7 reads inputs from switches and sensors, processes them, and drives outputs such as relays and LEDs. The 12-bit ADC with 24 channels can monitor analog signals like temperature and voltage, while the advanced timers generate PWM signals for dimming or motor control. The device's low-power modes help reduce quiescent current when the vehicle is parked, extending battery life. Compared to lower-performance MCUs, the SR5E1E7 provides the processing headroom needed for future software updates and advanced features like over-the-air (OTA) updates.
Được đề xuất
Battery Management System (BMS)
The SR5E1E7 is well-suited for battery management systems (BMS) in electric vehicles and energy storage systems. Its high clock speed and floating-point unit enable complex state-of-charge (SoC) and state-of-health (SoH) estimation algorithms. The 12-bit ADC with 24 channels can monitor cell voltages and temperatures, while the CAN-FD interfaces allow communication with the vehicle's central controller. The device's functional safety features (ASIL-B) are essential for ensuring safe operation of the battery pack. In a typical BMS, the SR5E1E7 reads voltage and temperature data from each cell, calculates the SoC and SoH, and controls balancing circuits to equalize cell voltages. The device's multiple UART and SPI interfaces can connect to external analog front-ends (AFEs) for high-accuracy measurements. The Ethernet MAC enables high-speed communication with cloud services for remote monitoring and diagnostics. The SR5E1E7's low-power modes help minimize energy consumption when the system is idle, extending battery life. Compared to dedicated BMS controllers, the SR5E1E7 offers more flexibility and processing power, allowing for advanced algorithms and future upgrades.
Được đề xuất
Industrial Motor Drive
The SR5E1E7 is an excellent choice for industrial motor drives, offering precise control of AC and DC motors. Its advanced timers generate high-resolution PWM signals for controlling power stages, while the 12-bit ADC with 24 channels provides accurate current and voltage sensing. The high clock speed and floating-point unit enable field-oriented control (FOC) algorithms for brushless DC motors, improving efficiency and reducing torque ripple. The device's multiple communication interfaces (CAN-FD, UART, SPI, I2C, Ethernet) allow integration into industrial networks such as EtherCAT or PROFINET. In a typical motor drive, the SR5E1E7 reads current sensors, computes the control algorithm, and outputs PWM signals to the gate driver. The device's functional safety features (ASIL-B) ensure safe operation in industrial environments. The Ethernet MAC enables remote monitoring and diagnostics, while the CAN-FD interfaces allow communication with other drives and PLCs. The SR5E1E7's high performance allows for advanced features like predictive maintenance and adaptive control, reducing downtime and improving productivity.
Được đề xuất
Smart Grid Infrastructure
The SR5E1E7 is suitable for smart grid applications such as smart meters, power quality monitors, and grid protection relays. Its high clock speed and floating-point unit enable real-time processing of power waveforms for harmonic analysis and power quality assessment. The 12-bit ADC with 24 channels can sample multiple voltage and current channels simultaneously, while the Ethernet MAC allows high-speed communication with the grid management system. The device's multiple UART and SPI interfaces can connect to communication modules such as PLC (power line communication) or RF. In a typical smart meter, the SR5E1E7 reads voltage and current from the grid, calculates energy consumption, and communicates the data to the utility. The device's functional safety features (ASIL-B) ensure reliable operation in critical infrastructure. The CAN-FD interfaces allow integration into local area networks for demand response and load management. The SR5E1E7's low-power modes help reduce energy consumption in battery-powered or energy-harvesting devices, extending their operational life.
Được đề xuất
Medical Device Control
The SR5E1E7 can be used in medical devices such as infusion pumps, patient monitors, and diagnostic equipment. Its high clock speed and floating-point unit enable complex signal processing for accurate measurements and control. The 12-bit ADC with 24 channels can interface with various sensors, while the multiple communication interfaces allow data transfer to external systems. The device's functional safety features (ASIL-B) are beneficial for ensuring patient safety. In a typical infusion pump, the SR5E1E7 controls the motor speed and monitors the flow rate, ensuring accurate delivery of medication. The device's low-power modes help extend battery life in portable devices. The Ethernet MAC enables connectivity to hospital networks for remote monitoring and data logging. The SR5E1E7's rich peripheral set allows for a compact design, reducing the overall size of the medical device. Compared to general-purpose MCUs, the SR5E1E7 offers higher performance and reliability, making it suitable for critical medical applications.
Được đề xuất
IoT Gateway
The SR5E1E7 is well-suited for IoT gateways that aggregate data from multiple sensors and devices and transmit it to the cloud. Its Ethernet MAC provides high-speed wired connectivity, while the multiple UART, SPI, and I2C interfaces allow connection to various wireless modules (Wi-Fi, Bluetooth, LoRa). The high clock speed and floating-point unit enable edge computing, processing data locally to reduce latency and bandwidth usage. The device's functional safety features (ASIL-B) ensure reliable operation in industrial IoT environments. In a typical IoT gateway, the SR5E1E7 collects data from sensors via SPI or I2C, processes it, and sends it to the cloud via Ethernet or a wireless module. The device's low-power modes help reduce energy consumption in battery-powered gateways. The CAN-FD interfaces allow integration into automotive or industrial networks. The SR5E1E7's rich peripheral set and high performance make it an ideal choice for demanding IoT applications that require real-time processing and robust connectivity.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho SR5E1E7 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | SR5E1E6 | SR5E1E8 | S32K344 | TC377 |
|---|---|---|---|---|---|
| Package | LQFP-176 | LQFP-176 (same) | LQFP-176 (same) | LQFP-144 (different) | BGA-292 (different) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors | Infineon |
| Core | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | ARM Cortex-M7 | TriCore |
| Maximum Clock Frequency | 400 MHz | 300 MHz | 400 MHz | 320 MHz | 300 MHz |
| Flash Memory | 2 MB | 1 MB | 4 MB | 2 MB | 4 MB |
| SRAM | 1 MB | 512 KB | 2 MB | 512 KB | 1 MB |
| Number of CAN-FD Interfaces | 6 | 4 | 6 | 3 | 4 |
| Ethernet MAC | 1 | 0 | 1 | 1 | 1 |
| Functional Safety | ASIL-B | ASIL-B | ASIL-B | ASIL-B | ASIL-D |
Bảo phân biệt quan trọng
- Higher clock frequency (400 MHz) compared to SR5E1E6 (300 MHz) (vsSR5E1E6)
- More CAN-FD interfaces (6) compared to S32K344 (3) (vsS32K344)
- LQFP-176 package with pin compatibility to SR5E1E6 and SR5E1E8 (vsTC377)
Ghi chú thiết kế
The SR5E1E7 operates from 3.3V to 5V. Use a 100nF ceramic capacitor and a 10uF electrolytic capacitor on each VDD pin, placed as close as possible to the device. For the analog supply (VDDA), use a separate 10uF capacitor and a ferrite bead to isolate digital noise. Ensure the ground plane is continuous and connect VSSA to the main ground at a single point to avoid ground loops.
The LQFP-176 package has a 0.5mm pitch, requiring careful PCB layout. Use a 4-layer board with dedicated power and ground planes. Place decoupling capacitors on the bottom side directly under the VDD pins to minimize loop area. For the exposed pad, provide a thermal via array to the ground plane to improve heat dissipation. Follow the manufacturer's layout guidelines for the ADC inputs to minimize noise.
Do not exceed the absolute maximum ratings for supply voltage (6V) or I/O pins (VDD+0.3V). Ensure the NRST pin is pulled up with a 10k resistor and a 100nF capacitor to ground for reliable reset. The BOOT0 pin must be tied to a defined level (GND or VDD) to select the boot mode. For CAN-FD interfaces, use a 120-ohm termination resistor at each end of the bus. When using the Ethernet MAC, provide a 25 MHz clock source and proper magnetics for the PHY.
Thông tin tuân thủ
RoHS compliant and AEC-Q100 qualified per STMicroelectronics product page. Halogen-free and conflict minerals compliant.