STMicroelectronics STM32MP133DAF7

Overview

STM32MP133DAF7 from STMicroelectronics is a dual-core Arm® Cortex®-A7 microprocessor operating up to 1 GHz, featuring dual 10/100/1000 Mbps Ethernet MACs with IEEE 1588v2 hardware support, dual CAN FD controllers, and two 12-bit ADCs sampling at up to 5 Msps - deployed in industrial gateways requiring real-time protocol bridging and secure edge processing.

For engineers reviewing the STM32MP133DAF7 datasheet, STM32MP133DAF7 pinout, STM32MP133DAF7 application, or STM32MP133DAF7 equivalent, key selection considerations include DDR3/LPDDR3 memory interface timing compliance, TrustZone®-enabled peripheral isolation, dual Ethernet clock domain synchronization, and TFBGA289 (9 × 9 mm, 0.5 mm pitch) mechanical integration constraints.

Technical Context

The STM32MP133DAF7 integrates two Arm Cortex-A7 cores with L1 I/D caches (32 KB each), a shared 128 KB L2 cache, NEON™ SIMD engine, and TrustZone® security extensions for hardware-enforced privilege separation between secure and non-secure worlds. Its interconnect comprises a 64-bit AXI bus matrix (266 MHz) and 32-bit AHB matrix (209 MHz), enabling concurrent high-bandwidth peripheral access.

It implements four independent PLLs with fractional dividers - PLL1 for CPU clocks (up to 1 GHz), PLL2 for AXI/AHB peripherals, PLL3 for audio subsystems (SAI/SPDIF), and PLL4 for USB/SDMMC - all supporting spread-spectrum clock generation (SSCG) to reduce EMI in dense PCB layouts.

Key Specifications

Pinout & Package

TFBGA289 package (B0EB variant) with 0.5 mm ball pitch, 9 × 9 mm body size, and JEDEC-standard thermal pad. Ball map includes dedicated VDD_DDR/VSS_DDR power planes, differential Ethernet MDIO/MDC and RGMII lanes, dual CAN FD TX/RX pairs, and 135 secure GPIOs with wakeup capability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core Arm Cortex-A7 microprocessor applications.

Compared with NXP i.MX 8M Mini and Renesas RZ/G2L, the STM32MP133DAF7 uniquely delivers dual CAN FD + dual IEEE 1588v2 Ethernet in a single TFBGA289 package with integrated TrustZone® security - making it the only option meeting functional safety requirements for SIL-2-certified industrial gateways without external co-processors.

Availability

STM32MP133DAF7 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, automotive diagnostic tools, and building automation controllers requiring stable component supply across 10+ year product lifecycles.

Supply support for STM32MP133DAF7 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 targets heterogeneous computing applications requiring Linux-capable application processors combined with real-time microcontroller-like peripherals - optimized for secure, low-power edge intelligence in resource-constrained environments.

FAQ

What is the maximum supported DDR memory density and interface standard?

The STM32MP133DAF7 supports up to 1 Gbyte of external DDR memory using LPDDR2/LPDDR3-1066 (16-bit bus) or DDR3/DDR3L-1066 (16-bit bus). It implements JEDEC-compliant DDR timing parameters including tRCD, tRP, tRAS, and tRFC, with on-die termination and programmable drive strength for signal integrity optimization on 4-layer PCBs.

Does STM32MP133DAF7 support secure boot from external QSPI flash?

Yes - the device supports secure boot from Quad-SPI flash via its Dual Quad-SPI memory interface with hardware decryption using AES-256 keys stored in BSEC OTP fuses. Boot ROM validates signed images using ECDSA-P256 before loading into internal SRAM, enforcing chain-of-trust without external secure elements.

How many independent CAN FD interfaces does STM32MP133DAF7 provide?

The STM32MP133DAF7 integrates two fully independent CAN FD controllers (FDCAN1 and FDCAN2), each compliant with ISO 11898-1:2015, supporting bit rates up to 5 Mbps, 64-byte payloads, and flexible data-length control. Both controllers feature dedicated TX/RX pins, message RAM with hardware acceptance filtering, and time-triggered communication mode.

What thermal management features are built into the TFBGA289 package?

The TFBGA289 package (B0EB) includes an exposed thermal pad on the bottom side, rated for θ_JA = 28.5 °C/W (JEDEC JESD51-7, 4-layer board). Internal temperature sensors monitor die temperature with ±2.5°C accuracy, triggering automatic thermal throttling at 110°C and hard shutdown at 125°C - critical for fanless industrial enclosure deployments.