STMicroelectronics announced the STM32H7P series on November 4, 2026 (the ST Blog post is dated November 3). It is a new branch of its high-end Cortex-M7 family that adds two accelerators to the CPU, both new to the STM32H7 line. On the STM32H7P4 and STM32H7P5, a Hardware Signal Processor (HSP) handles DSP work such as FFTs. On the STM32H7P5 only, ST's Neural-ART NPU runs neural-network inference. In the ST Blog post that accompanied the launch, ST calls the series the first STM32 microcontroller to carry both the HSP and the Neural-ART NPU.

The CPU is a Cortex-M7 at 520 MHz. ST quotes 2773 CoreMark for it in its press release. The chip is aimed at industrial work: digital power conversion, motor control, arc-fault detection and battery management, where one device has to sample signals, process them, classify them and drive power stages. The series is sampling to OEMs now. Production and the development boards are planned for January 2027.

What exactly is new here?

The STM32H7 family has long been ST's high-performance Cortex-M7 line. The H7P changes it in three ways.

The Hardware Signal Processor. ST says the HSP cuts FFT execution time by up to 5x compared with running the same transform in software on the Cortex-M7. The ST Blog says it is the same HSP block used on the STM32U3. Code and know-how built around the HSP on that low-power family should therefore carry over to some extent, though ST has not published a compatibility statement beyond saying it is the same block.

The Neural-ART NPU (STM32H7P5 only). ST rates the NPU at up to 85 GOPS. Its speedup figures are for its own reference models compared with software on the M7: 40x on an AI arc-fault (AFCI) detection model, 20x on an anomaly-detection model, and 15x on an AI battery-management (BMS) model. These are vendor numbers on vendor models. They give a sense of scale, but they are not an independent benchmark, and the gain on your own network will depend on how well its operators map onto the NPU.

Analog and timers from the STM32G5. ST says the analog peripherals and timers come from the STM32G5, the family it positions for digital power. According to CNX Software's spec breakdown, that means two HRTIM high-resolution timers with up to 24 PWM outputs at 1.9 ns resolution, and four 12-bit ADCs running at up to 5 MSPS across 44 channels.

Memory: the part that may matter most

The NPU gets the headlines, but the memory changes may matter more to many buyers. ST says the H7P offers up to 2 MB of flash at a price similar to the earlier 1 MB STM32H7 parts. The ST Blog says the unit price is similar to the STM32H72x/3x without a larger die. ST also calls the H7P the fastest STM32H7 with at least 1 MB of flash at 520 MHz.

CNX Software lists the full memory map:

  • Up to 2 MB dual-bank flash with ECC
  • 736 KB SRAM in total: 192 KB ITCM, 128 KB DTCM, 320 KB AXI SRAM, 96 KB AHB SRAM, plus 4 KB backup SRAM
  • 32 KB instruction cache and 32 KB data cache

This matches the ST Blog's description of "up to 320 KB" of tightly-coupled RAM, 192 KB of it for instructions. For control loops, ST says the tightly-coupled RAM is there to give deterministic execution of real-time code, which for control loops can matter as much as the headline clock speed.

Full spec sheet, as reported

CNX Software's listing, alongside ST's own materials, gives this picture:

  • CPU: Arm Cortex-M7 at 520 MHz, 2773 CoreMark (ST)
  • Accelerators: HSP on STM32H7P4 and STM32H7P5; Neural-ART NPU, up to 85 GOPS, on STM32H7P5 only
  • Flash / RAM: up to 2 MB dual-bank flash with ECC; 736 KB SRAM
  • GPIO: up to 134, of which 132 are 5 V-tolerant
  • Timers: 2x HRTIM, up to 24 PWM outputs, 1.9 ns resolution
  • Analog: 4x 12-bit ADC, up to 5 MSPS, 44 channels
  • Connectivity: 3x CAN FD, USB OTG FS, 2x UCPD (USB Type-C/Power Delivery controllers), Octo-SPI up to 100 MHz, FMC
  • Supply: 1.71 V to 3.6 V
  • Temperature: -40 to +125 °C; ST says operation up to 125 °C ambient
  • Packages: LQFP100, LQFP128, LQFP144, LQFP176, TFBGA100, UFBGA176+25; ST also offers exposed-pad LQFP options

A few things stand out. There is no radio, so this is not a wireless part. USB is Full Speed only. The ST Blog says there is no Ethernet, display controller or GPU. The three FDCAN controllers, the two UCPD ports and the exposed-pad LQFP packages point at power supplies, chargers, inverters and motor drives.

Software

ST says the series is supported by STM32CubeMX2 and HAL2, its newer configuration tool and driver layer. Neither the press release nor the blog post names the toolchain for the NPU. Developers should expect the Neural-ART flow to come through ST's AI tooling once boards ship, but the details are not in the launch sources yet. The press release also places the H7P in ST's industrial longevity program, which matters for products that have to stay buildable for many years.

What It Means for Makers

Who it is for. Mainly people building digital power and real-time control hardware: DIY inverters and motor controllers, lab power supplies, battery-system monitors, CAN-based vehicle or robot projects. The H7P5 adds the case for running a small classifier next to the control loop, such as anomaly detection on motor current or vibration data, without a second processor. Anyone who only needs a fast M7 with more flash may find the H7P4 worth a look, since it keeps the HSP and skips the NPU.

What it replaces or enables. Going by ST's pricing claim, the H7P sits where STM32H72x/3x designs sit today, with double the flash and added accelerators at a similar unit price. It also brings G5-class HRTIM timers into the H7 line. One caution: arc-fault detection and battery management are among ST's showcase uses, but these are safety-critical functions with certification requirements. A fast NPU on a dev board does not make a hobby build a certified protection device.

Price and availability, as ST states them. The STM32H7P is sampling to OEMs now. Production is planned for January 2027. ST's launch price starts at $4.43 per unit for the 1 MB flash version in LQFP100, in 10,000-unit orders. Small-quantity distributor pricing was not given in the launch materials. The NUCLEO-H7P5II board and the STM32H7P5IDK kit are both listed for January 2027. Board prices were not given in the launch materials. Until those boards ship, most makers cannot get hands-on with the H7P.

Sources