Overview
The STM32MP157CAA3 is a high-performance microprocessor unit (MPU) developed by STMicroelectronics. It is part of the STM32MP1 series, which integrates a dual-core Arm Cortex-A7 processor and a Cortex-M4 real-time coprocessor. This MPU is designed to provide rich performance in various applications, including high-end wearables, low-power embedded systems, and consumer electronics. The Cortex-A7 processor operates at up to 800 MHz, while the Cortex-M4 core runs at up to 209 MHz, making it suitable for demanding tasks and real-time processing.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Cores | 32-bit dual-core Arm Cortex-A7, 32-bit Arm Cortex-M4 |
| Processor Frequencies | Cortex-A7: up to 800 MHz, Cortex-M4: up to 209 MHz |
| Caches | 32-Kbyte L1 instruction and data cache for each Cortex-A7 core, 256-Kbyte unified level 2 cache |
| Memories | External DDR memory up to 1 Gbyte (LPDDR2/LPDDR3-1066, DDR3/DDR3L-1066), 708 Kbytes of internal SRAM |
| Graphics Processing Unit | 3D GPU (Vivante OpenGL ES 2.0) up to 533 MHz |
| Supply Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40°C to 125°C |
| Communication Interfaces | Up to 37 peripherals including I2C, UART, USART, SPI, SAI, CAN, USB, Ethernet |
Key Features
- Includes ST state-of-the-art patented technology
- Arm NEON and Arm TrustZone support
- Secure boot, TrustZone, and cryptographic acceleration cell
- Low-power modes: Sleep, Stop, and Standby
- High-speed embedded memories and extensive range of I/Os and peripherals
- Support for TFT/MIPI DSI displays and FD-CAN
- Multiple DMA controllers and bus matrices for efficient data transfer
- Advanced analog peripherals including ADCs, DACs, and digital filters
Applications
- High-end wearables and consumer electronics
- Low-power embedded and industrial systems
- Automotive systems, especially those requiring CAN and time-triggered CAN (TTCAN)
- Medical devices and healthcare equipment
- Industrial automation and control systems
Q & A
- What are the core processors in the STM32MP157CAA3?
The STM32MP157CAA3 features a 32-bit dual-core Arm Cortex-A7 and a 32-bit Arm Cortex-M4 real-time coprocessor.
- What is the maximum frequency of the Cortex-A7 and Cortex-M4 cores?
The Cortex-A7 operates at up to 800 MHz, and the Cortex-M4 operates at up to 209 MHz.
- What type of memory does the STM32MP157CAA3 support?
The device supports external DDR memory up to 1 Gbyte (LPDDR2/LPDDR3-1066, DDR3/DDR3L-1066) and has 708 Kbytes of internal SRAM.
- Does the STM32MP157CAA3 have a graphics processing unit?
Yes, it includes a 3D GPU (Vivante OpenGL ES 2.0) running at up to 533 MHz.
- What is the operating temperature range of the STM32MP157CAA3?
The operating temperature range is -40°C to 125°C.
- What communication interfaces are available on the STM32MP157CAA3?
The device features up to 37 communication peripherals, including I2C, UART, USART, SPI, SAI, CAN, USB, and Ethernet.
- Does the STM32MP157CAA3 support secure boot and cryptography?
Yes, it includes secure boot, TrustZone, and a cryptographic acceleration cell.
- What are the low-power modes available on the STM32MP157CAA3?
The device supports Sleep, Stop, and Standby low-power modes.
- What types of displays does the STM32MP157CAA3 support?
The device supports TFT/MIPI DSI displays.
- What is the purpose of the DMA controllers in the STM32MP157CAA3?
The DMA controllers are used to unload the CPU and manage peripheral data transfer efficiently.
