STMicroelectronics STM32H750ZBT6

Overview

STM32H750ZBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M7 microcontroller operating at up to 480 MHz, featuring 128 Kbytes of flash, 1 Mbyte of RAM (including 192 Kbytes TCM), and integrated cryptographic acceleration (AES-256, SHA-2, RNG). It delivers 1027 DMIPS and supports dual-domain power management (D1/D2/D3) for high-performance real-time control in industrial motor drives.

For engineers reviewing the STM32H750ZBT6 datasheet, STM32H750ZBT6 pinout, STM32H750ZBT6 application, or STM32H750ZBT6 equivalent, key selection criteria include its 144-pin LQFP package, 480 MHz CPU frequency with double-precision FPU, 3× PLLs with fractional mode, 3× ADCs (16-bit, 3.6 MSPS), and dual CAN FD interfaces - all critical for deterministic embedded control and secure connectivity.

Technical Context

The STM32H750ZBT6 implements a tightly coupled memory architecture with separate ITCM (64 KB) and DTCM (128 KB) for zero-wait-state execution of time-critical code, alongside 864 KB user SRAM and 4 KB backup SRAM. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, enabling concurrent peripheral access without CPU contention.

It integrates three independent PLLs: one system PLL (up to 480 MHz), plus two kernel PLLs supporting independent clock domains for peripherals including USB OTG HS/FS, Ethernet MAC, and SPDIFRX - each configurable via fractional-N synthesis for jitter-sensitive timing.

Key Specifications

Pinout & Package

LQFP144 package with 20 × 20 mm body, 0.5 mm lead pitch, and exposed thermal pad (EP). Pin count: 144 leads. Compatible with standard reflow profiles per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance MCU applications.

Compared with STM32H743ZIT6, the STM32H750ZBT6 trades flash capacity for lower cost and smaller die size while retaining identical real-time performance and peripheral bandwidth; versus STM32H753ZIT6, it omits PSA-certified secure boot but maintains full cryptographic acceleration and tamper detection for non-certified secure applications.

Availability

STM32H750ZBT6 is available at Aetrix Electronics and suitable for industrial motor control, secure edge gateways, medical imaging subsystems, and advanced HMI requiring stable component supply across long-lifecycle deployments.

Supply support for STM32H750ZBT6 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 STM32H7 series targets high-end embedded applications demanding real-time determinism, cryptographic security, and rich peripheral integration - specifically engineered for industrial automation, medical equipment, and next-generation human-machine interfaces.

FAQ

What is the maximum operating frequency of the STM32H750ZBT6, and how is it achieved?

The STM32H750ZBT6 operates at up to 480 MHz using its Arm Cortex-M7 core with double-precision FPU and L1 cache (16 KB instruction + 16 KB data). This frequency is sustained via three independent PLLs - one system PLL with fractional-N synthesis - and requires proper decoupling with two 2.2 µF VCAP capacitors to stabilize the internal LDO regulator feeding the 1.2 V core rail.

Does the STM32H750ZBT6 support external SDRAM, and what interface is used?

Yes, the STM32H750ZBT6 supports external SDRAM through its Flexible Memory Controller (FMC), which provides a 32-bit data bus and supports SDRAM/LPSDR SDRAM in burst mode. The FMC operates in synchronous mode up to 133 MHz and includes dedicated control signals (RAS/CAS/WE) and bank addressing - enabling direct attachment of up to 256 MB SDRAM for frame buffers or large data caches.

How does the power domain architecture improve system-level energy efficiency?

The STM32H750ZBT6 features three independent power domains (D1, D2, D3) that can be clock-gated or powered down individually. D1 hosts the CPU and TCM RAM; D2 manages communication peripherals and timers; D3 handles reset/clock/power control. This allows selective activation - e.g., keeping D3 and D2 active for CAN FD wakeup while D1 remains in Stop mode - achieving 2.95 µA Standby current with RTC and LSE running.

Can the STM32H750ZBT6 execute cryptographic operations without CPU intervention?

Yes, the STM32H750ZBT6 includes dedicated hardware accelerators for AES-128/192/256 encryption/decryption, HASH (MD5/SHA-1/SHA-2), HMAC, and True Random Number Generation (TRNG). These operate independently via DMA-triggered command queues, enabling full TLS 1.2 handshake processing at 20 Mbps while the CPU executes application code - verified in ST's X-CUBE-CRYPTOLIB reference implementation.