STMicroelectronics STM32MP131DAE7

Overview

STM32MP131DAE7 from STMicroelectronics is a dual-core Arm® Cortex®-A7 microprocessor unit (MPU) operating up to 1 GHz, featuring integrated TrustZone® security, 1× Gigabit Ethernet MAC (IEEE 1588v2), 1× 12-bit ADC (5 Msps), and dual Quad-SPI interfaces - deployed in industrial HMI gateways requiring real-time Linux-based control with secure peripheral management.

For engineers reviewing the STM32MP131DAE7 datasheet, STM32MP131DAE7 pinout, STM32MP131DAE7 application, or STM32MP131DAE7 equivalent, key selection criteria include DDR3/LPDDR3 memory controller timing compliance, TrustZone-enabled peripheral isolation, Ethernet MAC RGMII/MII interface support, and LFBGA289 (14 × 14 mm, 0.8 mm pitch) mechanical compatibility.

Technical Context

The STM32MP131DAE7 implements a dual-bus interconnect architecture: a 64-bit AXI matrix running at up to 266 MHz for high-bandwidth CPU-to-DDR traffic, and a 32-bit AHB matrix at 209 MHz for peripheral access. It integrates four independent PLLs - including dedicated audio PLL for SAI/I2S clock accuracy and USB_PLL for high-speed PHY synchronization.

Security is enforced via hardware-enforced TrustZone address space controller (TZC) for DDR, embedded tamper detection (12 pins, 5 active), and BSEC-managed one-time programmable fuses (3072 bits, 96-bit UID). Power management includes five low-power modes (LPLV-Stop2, Standby with DDR retention) and on-chip LDOs for USB 1.8 V and core 1.1 V rails.

Key Specifications

Pinout & Package

LFBGA289 (14 × 14 mm, 0.8 mm pitch, B0ED variant) with 289 solder balls arranged in 17 × 17 array; ball pitch and pad layout conform to JEDEC MO-275AC standard; thermal pad exposed on underside for PCB-level heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32MP131DAE7, the STM32MP157C offers higher CPU throughput but sacrifices audio-grade timing and compact LFBGA289 footprint; the i.MX 8M Mini delivers richer multimedia I/O yet lacks hardware-enforced peripheral trust zones required for certified industrial security.

Availability

STM32MP131DAE7 is available at Aetrix Electronics and suitable for industrial HMI gateways, secure edge node controllers, audio processing terminals, and IoT gateways requiring stable component supply across extended product lifecycles.

Supply support for STM32MP131DAE7 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 automotive semiconductors since 1987.

The STM32MP series targets Linux-capable industrial and edge computing applications, combining Arm application processors with real-time MCU-like peripherals and hardware security - bridging the gap between microprocessors and microcontrollers.

FAQ

What is the maximum DDR memory capacity supported by STM32MP131DAE7?

The STM32MP131DAE7 supports up to 1 Gbyte of external DDR memory via its 16-bit DDR3/DDR3L-1066 or LPDDR2/LPDDR3-1066 controller. This includes hardware support for 8-bit ECC on SLC NAND and configurable burst lengths aligned to JEDEC standards for industrial-grade reliability.

Does STM32MP131DAE7 include hardware cryptographic acceleration?

Yes - it integrates a dedicated HASH processor supporting SHA-1, SHA-224/256/384/512, and SHA-3, plus HMAC; a public key accelerator (PKA) for ECDSA verification; and a true random number generator with six triple oscillators meeting NIST SP 800-90B entropy requirements.

What debug interfaces are available on STM32MP131DAE7?

The device provides Arm® CoreSight™ trace and debug via SWD and JTAG interfaces, both usable as general-purpose GPIOs when not in debug mode. It includes a 4-Kbyte embedded trace buffer and supports secure debug authentication through TrustZone-protected debug registers.

Can STM32MP131DAE7 operate in battery-backed standby mode?

Yes - it supports VBAT operation with dedicated backup regulator (~0.9 V), enabling RTC, backup SRAM (8 Kbytes), and tamper detection to remain active during main power loss. Standby mode draws ≤15 µA while retaining full DDR contents for instant resume.