STMicroelectronics STM32MP151DAC1

Overview

STM32MP151DAC1 from STMicroelectronics is a dual-core Arm® Cortex®-A7 (800 MHz) + Cortex®-M4 (209 MHz) microprocessor unit with TrustZone® security, 708 KB on-chip SRAM, LPDDR2/LPDDR3/DDR3 memory support up to 1 Gbyte, and integrated LCD-TFT controller supporting WXGA @60 fps. It targets Linux-capable industrial HMI, edge gateway, and smart appliance control systems requiring real-time co-processing and graphics.

For engineers reviewing the STM32MP151DAC1 datasheet, STM32MP151DAC1 pinout, STM32MP151DAC1 application, or STM32MP151DAC1 equivalent, key selection criteria include dual-core asymmetric architecture, DDR memory retention in Standby mode (2 µA), hardware-accelerated crypto (SHA256/HMAC), and 35 communication interfaces including dual USB 2.0 HS + OTG and Gigabit Ethernet GMAC.

Technical Context

The device implements an asymmetric multiprocessing (AMP) architecture: the Cortex-A7 cluster runs Linux for high-level tasks and UI rendering, while the Cortex-M4 handles deterministic real-time control, sensor fusion, and low-latency peripheral management via IPCC and HSEM inter-processor synchronization. Memory isolation is enforced by TrustZone® and ETZPC peripherals.

Its clock system integrates five fractional PLLs-including dedicated audio PLLs for SAI/I2S timing-and supports IEEE 1588v2 hardware timestamping in the GMAC. The interconnect comprises a 64-bit AXI matrix (266 MHz) and 32-bit AHB matrix (209 MHz), enabling concurrent high-bandwidth data paths for display, camera, and Ethernet traffic.

Key Specifications

Pinout & Package

STM32MP151DAC1 is housed in a TFBGA361 package (12 × 12 mm, 0.5 mm pitch), compliant with ECOPACK2 environmental standards. Pin definitions and alternate functions are fully documented in Section 4 of DS12500 Rev 9.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core MPU applications.

Compared with i.MX 8M Mini and RZ/G2L, STM32MP151DAC1 uniquely combines TrustZone®-secured DDR management, integrated WXGA display controller, and hardware SHA256/HMAC in a single die-reducing system-level BOM count and simplifying functional safety certification for industrial HMIs.

Availability

STM32MP151DAC1 is available at Aetrix Electronics and suitable for industrial HMI terminals, edge gateways, and medical UI systems requiring stable component supply across extended product lifecycles and automotive-grade reliability.

Supply support for STM32MP151DAC1 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32MP series is ST's first line of microprocessor units targeting Linux-capable embedded applications with real-time co-processing, emphasizing security (TrustZone®), graphics (LTDC), and heterogeneous compute for industrial edge devices.

FAQ

What boot sources does STM32MP151DAC1 support?

STM32MP151DAC1 supports boot from Quad-SPI flash, SD/MMC card, NAND flash via FSMC, USB device, and UART. Boot mode is selected by BOOT0 and BOOT1 pins at power-up, and the first-stage bootloader (FSBL) validates signature and loads second-stage (SSBL) from configured medium per Section 3.6 of DS12500 Rev 9.

Does STM32MP151DAC1 include hardware debug support?

Yes - it integrates Arm CoreSight™ infrastructure with SWD and JTAG interfaces, an 8-Kbyte embedded trace buffer, and support for both Cortex-A7 and Cortex-M4 core debugging simultaneously. This enables real-time tracing, instruction-level profiling, and cross-core breakpoint synchronization in development environments like STM32CubeIDE.

How is TrustZone® implemented on this device?

TrustZone® is implemented at both processor and peripheral levels: the Cortex-A7 cores include TrustZone® extensions for secure/non-secure world isolation, while peripherals such as DDR controller (TZC), GPIO (ETZPC), and DMA (HSEM) enforce hardware-enforced access control. Secure boot starts from ROM code and chains through signed FSBL/SSBL into Linux kernel with secure monitor.

What is the maximum resolution supported by the LTDC controller?

The LTDC controller supports up to WXGA (1366 × 768) at 60 fps or Full HD (1920 × 1080) at 30 fps with RGB888 color depth and pixel clock up to 90 MHz. It includes two independent layers with programmable color LUTs, alpha blending, and dithering - enabling smooth overlays and anti-aliased UI elements without GPU acceleration.