STMicroelectronics STM32MP135FAG7

Overview

STM32MP135FAG7 from STMicroelectronics is a dual-core Arm® Cortex®-A7 microprocessor operating up to 1 GHz, integrating LCD-TFT controller, dual CAN FD interfaces, dual 12-bit ADCs (5 Msps), and hardware crypto acceleration (AES-256, PKA, SHA-512). It supports LPDDR3-1066/DDR3L-1066 memory, features TrustZone® security, and targets industrial HMI, edge gateway, and secure IoT gateway applications.

For engineers reviewing the STM32MP135FAG7 datasheet, STM32MP135FAG7 pinout, STM32MP135FAG7 application, or STM32MP135FAG7 equivalent, key selection considerations include dual Cortex-A7 core timing alignment, DDR3/LPDDR3 memory interface compatibility, CAN FD protocol stack support, TrustZone® peripheral isolation configuration, and LTDC display bandwidth for WXGA@60fps.

Technical Context

The device implements a dual-core Arm Cortex-A7 subsystem with 128 KB unified L2 cache, NEON™ SIMD extension, and TrustZone® for secure world/non-secure world partitioning. Memory architecture includes 168 KB on-chip SRAM (128 KB AXI SYSRAM + 32 KB AHB SRAM + 8 KB backup SRAM) and external DDR controller supporting 16-bit LPDDR3-1066 or DDR3L-1066.

Peripherals are managed via dual interconnect matrices: a 64-bit AXI bus matrix (266 MHz) for high-bandwidth paths (DDR, GPU, LTDC) and a 32-bit AHB matrix (209 MHz) for low-latency peripherals (ADC, timers, I2C). Security is enforced by ETZPC, TZC, BSEC, and 12 tamper pins including 5 active tampers.

Key Specifications

Pinout & Package

LFBGA289 package (14 × 14 mm, 0.8 mm pitch), RoHS-compliant and ECOPACK2 certified. Ball count: 289; thermal pad exposed on underside.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32MP135FAG7, STM32MP157C-DK2 offers greater L2 cache and ADC resolution but omits DFSDM-critical for delta-sigma sensor systems-while i.MX 8M Mini provides quad-A53 throughput and M4 co-processing at the cost of ST's fine-grained TrustZone peripheral isolation and 5 active tamper pins.

Availability

STM32MP135FAG7 is available at Aetrix Electronics and suitable for industrial HMI, secure edge gateways, smart building controllers, and medical imaging edge nodes requiring stable component supply across long-lifecycle deployments.

Supply support for STM32MP135FAG7 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade processors.

The STM32MP series targets Linux-capable, security-critical embedded applications where real-time responsiveness, hardware-enforced isolation, and long-term industrial support are mandatory.

FAQ

What boot sources does STM32MP135FAG7 support?

STM32MP135FAG7 supports boot from eMMC, SD card, SPI NOR flash, NAND flash (with BCH ECC), and UART via serial downloader. Boot mode is selected using BOOT0 and BOOT1 pins at power-on reset, with configuration stored in OTP memory for persistent fallback behavior.

Does STM32MP135FAG7 include hardware JPEG or video codec acceleration?

No. STM32MP135FAG7 does not integrate dedicated JPEG encode/decode or H.264/H.265 video codec hardware. Image processing relies on Cortex-A7 NEON instructions and software libraries; video streaming must be handled via external encoder or software-based solutions.

What is the maximum DDR clock frequency supported by STM32MP135FAG7?

The DDR controller supports up to 533 MHz data rate (1066 MT/s), compatible with LPDDR3-1066 and DDR3L-1066 standards. This requires precise PCB layout adherence to JEDEC timing budgets and proper termination for 16-bit data bus operation.

How is TrustZone security implemented beyond the CPU level?

TrustZone extends beyond CPU cores via ETZPC (external peripheral protection), TZC (DDR address space filtering), and BSEC (secure OTP and key management). Peripherals like ADC, timers, and I2C can be statically assigned to secure or non-secure worlds, and DDR accesses are filtered per-world basis to prevent unauthorized memory access.