Overview
The STM32MP157AAD3, produced by STMicroelectronics, is a high-performance microprocessor based on the dual-core Arm® Cortex®-A7 and single-core Arm® Cortex®-M4 architectures. This device is designed to provide rich performance in high-end wearables, low-power embedded systems, and consumer applications. The Cortex-A7 processor operates at up to 800 MHz, while the Cortex-M4 core runs at up to 209 MHz. The STM32MP157AAD3 also features a 3D graphic processing unit (Vivante® - OpenGL® ES 2.0) and extensive memory and peripheral capabilities, making it a versatile choice for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Cores | 32-bit dual-core Arm® Cortex®-A7, 32-bit Arm® Cortex®-M4 |
| Clock Speed | Cortex-A7: up to 800 MHz, Cortex-M4: up to 209 MHz |
| Caches | L1: 32-Kbyte I / 32-Kbyte D 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 | Vivante® - OpenGL® ES 2.0, up to 533 MHz |
| Communication Interfaces | Up to 37 peripherals including I2C, UART, USART, SPI, SAI, CAN, USB, and Ethernet |
| Operating Temperature | -40°C to 125°C |
| Package | TFBGA 257 (10x10 mm), Pitch 0.5 mm |
Key Features
- Arm® NEON™ and Arm® TrustZone® support for enhanced security and performance
- Internal temperature sensors and low-power modes (Sleep, Stop, Standby)
- External SDRAM interface supporting up to 1 Gbyte of external memory
- Dual mode Quad-SPI memory interface and flexible external memory controller
- Extensive range of I/Os and peripherals connected to APB, AHB, and AXI buses
- Up to 176 I/O ports with interrupt capability, including secure I/Os and tamper detection
- Three DMA controllers with 48 physical channels for efficient data transfer
- Advanced analog peripherals including ADCs, DACs, and digital filters for sigma delta modulators
Applications
- High-end wearables and consumer electronics
- Low-power embedded systems and IoT devices
- Industrial automation and control systems
- Automotive systems, including infotainment and driver assistance
- Medical devices requiring high performance and low power consumption
Q & A
- What are the core architectures of the STM32MP157AAD3?
The STM32MP157AAD3 features a 32-bit dual-core Arm® Cortex®-A7 and a 32-bit single-core Arm® Cortex®-M4.
- What is the maximum clock speed 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 types of external memory does the STM32MP157AAD3 support?
The device supports external DDR memory up to 1 Gbyte, including LPDDR2/LPDDR3-1066 and DDR3/DDR3L-1066.
- What is the performance of the 3D graphic processing unit?
The 3D GPU (Vivante® - OpenGL® ES 2.0) runs at up to 533 MHz with performances up to 26 Mtriangle/s and 133 Mpixel/s.
- What communication interfaces are available on the STM32MP157AAD3?
The device includes up to 37 communication peripherals such as I2C, UART, USART, SPI, SAI, CAN, USB, and Ethernet.
- What are the operating temperature ranges for the STM32MP157AAD3?
The operating temperature range is from -40°C to 125°C.
- What is the package type and size of the STM32MP157AAD3?
The device is available in a TFBGA 257 package (10x10 mm) with a pitch of 0.5 mm.
- Does the STM32MP157AAD3 support low-power modes?
- What security features are included in the STM32MP157AAD3?
The device includes Arm® TrustZone® support, active tamper detection, and secure I/Os.
- What types of analog peripherals are available on the STM32MP157AAD3?
The device features two ADCs, two DACs, a temperature sensor, and digital filters for sigma delta modulators.
