STMicroelectronics STM32MP151CAD3

Overview

STM32MP151CAD3 from STMicroelectronics is a dual-core Arm® Cortex®-A7 (800 MHz) + Cortex®-M4 (209 MHz) microprocessor unit with TrustZone®, NEON™, FPU, 708 KB SRAM, LPDDR2/3 and DDR3/3L support up to 1 GB, and integrated LCD-TFT controller supporting WXGA@60 fps - deployed in industrial HMIs, edge gateways, and smart building controllers.

For engineers reviewing the STM32MP151CAD3 datasheet, STM32MP151CAD3 pinout, STM32MP151CAD3 application, or STM32MP151CAD3 equivalent, key selection considerations include dual-core asymmetric processing capability, hardware crypto acceleration (AES-256, SHA-256), 35 communication interfaces including dual USB 2.0 HS + OTG, Gigabit Ethernet with IEEE 1588v2, and 176 I/Os with tamper detection - all in a TFBGA361 (12 × 12 mm, 0.5 mm pitch) package.

Technical Context

The device implements an asymmetric multiprocessing architecture: the Cortex-A7 subsystem handles Linux-based application layers and graphics rendering via the LTDC controller, while the Cortex-M4 executes real-time control tasks with deterministic latency using dedicated NVIC and low-power timers. Memory coherency is maintained through AXI/AHB interconnect matrices and hardware semaphores (HSEM).

Security is enforced at silicon level via TrustZone® address space isolation, secure boot with BSEC OTP fuses, active tamper detection on 3 pins, and cryptographic accelerators (CRYP1/2, HASH1/2, RNG1/2) enabling secure firmware updates and encrypted data paths - critical for industrial IoT endpoints requiring functional safety and data integrity.

Key Specifications

Pinout & Package

STM32MP151CAD3 uses a TFBGA361 package (12 × 12 mm, 0.5 mm ball pitch, B031 marking), RoHS-compliant and ECOPACK2 certified. Ball map includes dedicated power domains (VDDCORE, VDDIO, VDDUSB, VDDA), clock inputs (HSE, LSE, HSI, CSI), reset (NRST_CORE, NRST), and function-multiplexed I/O balls supporting up to 176 signals across 12 alternate functions (AF0–AF15).

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, STM32MP151CAD3 uniquely combines TrustZone®-secured M4 execution, integrated LTDC, DFSDM, and SPDIFRX in a single die - making it optimal for cost-sensitive, display-rich industrial edge nodes requiring hardware-enforced security boundaries and analog sensor fusion.

Availability

STM32MP151CAD3 is available at Aetrix Electronics and suitable for industrial HMIs, edge gateways, and smart building controllers requiring stable component supply across extended product lifecycles.

Supply support for STM32MP151CAD3 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 ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32MP series targets heterogeneous computing for Linux-capable edge devices, emphasizing security (TrustZone®), real-time responsiveness (dual-core partitioning), and integration (graphics, crypto, analog) to reduce system BOM and board area.

FAQ

What is the maximum DDR memory capacity supported by STM32MP151CAD3?

STM32MP151CAD3 supports up to 1 Gbyte of external DDR memory, compatible with LPDDR2/LPDDR3-1066 (16/32-bit) and DDR3/DDR3L-1066 (16/32-bit). The DDR controller includes hardware ECC support and is managed via the DDRCTRL peripheral with TrustZone®-protected address mapping through TZC.

Does STM32MP151CAD3 include hardware cryptographic acceleration?

Yes, STM32MP151CAD3 integrates two dedicated crypto processors: CRYP1 and CRYP2 supporting AES-128/192/256, TDES, and HASH1/HASH2 supporting MD5, SHA-1, SHA-224, and SHA-256 with HMAC. It also includes two true random number generators (RNG1/RNG2) each with three independent oscillators for entropy generation.

What display interfaces does STM32MP151CAD3 support natively?

STM32MP151CAD3 features an integrated LCD-TFT controller (LTDC) supporting RGB666, RGB888, and YUV formats with up to 24-bit parallel output. It delivers up to WXGA (1366×768) at 60 fps or Full HD (1920×1080) at 30 fps, with programmable color LUTs and dual-layer blending - no external display bridge IC required.

How many secure I/Os does STM32MP151CAD3 provide?

STM32MP151CAD3 provides up to 8 secure I/Os, configurable via the ETZPC (Embedded TrustZone Protection Controller) to restrict access to specific peripherals or memory regions. These I/Os can be assigned to either Cortex-A7 or Cortex-M4 domains and support tamper detection with active-low signaling and timestamped event capture.