STM32H7B3LIH6QU STMicroelectronics Integrated Circuit (BGA) In Stock
STMicroelectronics STM32H7B3LIH6QU is a high-performance 32-bit ARM Cortex-M7 microcontroller running up to 280 MHz with 2 MB Flash, 1.4 MB SRAM, and integrated DSP and FPU, offered in a BGA package. Supports dual-bank Flash for live firmware updates, USB HS OTG, and advanced display interfaces including LTDC and DSI. Available from authorized distributors with competitive pricing for graphics-intensive embedded applications.
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 225
- Lifecycle
- ACTIVE
- Datasheet
- STM32H7B3LIH6QU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ARM Cortex-M7 core at up to 280 MHz with double-precision FPU and DSP instructions delivers exceptional compute density for audio, video, and motor control
- 2 MB dual-bank Flash enables live firmware update (OTA) without halting application execution, critical for field-deployed industrial and consumer devices
- Integrated LTDC and MIPI DSI display interface supports high-resolution RGB panels up to 1280x800 pixels without an external display controller
- 1.4 MB of on-chip SRAM with Chrom-ART Accelerator (DMA2D) offloads framebuffer rendering from the CPU, freeing cycles for application logic
Applications
The STM32H7B3LIH6QU targets advanced HMI panels, industrial touchscreen controllers, and portable medical devices where high-resolution graphics and real-time signal processing must coexist on a single MCU. Its MIPI DSI and LTDC display interfaces eliminate the need for an external GPU or display controller IC, significantly reducing system BOM cost and board complexity. The combination of 280 MHz Cortex-M7 performance, FPU, and large SRAM also suits audio DSP applications such as smart speakers, industrial audio analyzers, and voice-command front-ends.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32H7B3LIH6QU:
RISC Microcontroller, 32-Bit, FLASH, STM32 CPU, 280MHz, CMOS, PBGA169
RISC Microcontroller, 32-Bit, FLASH, STM32 CPU, 280MHz, CMOS, PQFP100
RISC Microcontroller, 32-Bit, FLASH, STM32 CPU, 280MHz, CMOS, PQFP176
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M7 CPU, 280MHz, CMOS, PBGA201
RISC Microcontroller, 32-Bit, FLASH, STM32 CPU, 480MHz, CMOS, PBGA265
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M7 CPU, 280MHz, CMOS, PBGA216
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M7 CPU, 480MHz, CMOS, PBGA265
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M7 CPU, 480MHz, CMOS, PBGA265
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M7 CPU, 480MHz, CMOS, PBGA265
Frequently Asked Questions
For an HMI panel design, what display resolutions and interfaces does STM32H7B3LIH6QU natively support?
The STM32H7B3LIH6QU integrates both an LTDC (LCD-TFT Display Controller) and a MIPI DSI interface, supporting TFT displays up to 1280x800 pixels at 24-bit color depth. LTDC drives parallel RGB displays directly, while the MIPI DSI interface connects to modern smartphone-class display panels over a 2-lane DSI link at up to 500 Mbit/s per lane. The built-in Chrom-ART DMA2D hardware accelerator handles blending and format conversion for 32-bit ARGB framebuffers, offloading the 280 MHz CPU.
What Flash and RAM configuration does STM32H7B3LIH6QU provide and how does dual-bank Flash support OTA updates?
The STM32H7B3LIH6QU integrates 2 MB of dual-bank Flash and 1.4 MB of tightly-coupled and AHB-accessible SRAM. Dual-bank Flash partitions memory into two independently erasable 1 MB banks, so firmware can write and verify a new image in Bank 2 while the running application executes from Bank 1. A single bank-swap command activates the new firmware on the next reset, enabling zero-downtime OTA updates compliant with IEC 62443 secure update requirements.
How does STM32H7B3LIH6QU handle DSP workloads such as audio filtering at 280 MHz?
The Cortex-M7 core in STM32H7B3LIH6QU includes a double-precision floating-point unit and DSP instruction extensions (SIMD MAC), delivering up to 599 DMIPS and 2040 CoreMark. This enables real-time audio processing tasks such as 128-tap FIR filters at 48 kHz sample rates, FFT spectral analysis up to 4096 points in under 1 ms, and multi-channel noise cancellation algorithms within the 1.4 MB SRAM budget. The DFSDM peripheral additionally supports up to 8 digital PDM microphone channels.
In a space-constrained wearable or portable device, what BGA package options and supply voltages does STM32H7B3LIH6QU require?
The STM32H7B3LIH6QU is offered in a 225-ball BGA package with a compact footprint suitable for high-density portable PCB designs. The device operates from a 1.8 V to 3.6 V I/O supply with a separate 1.2 V core VDD, making it compatible with low-voltage battery-powered systems using LDO regulation. Standby current consumption is in the single-digit microampere range, and the MCU supports multiple low-power stop and standby modes to extend battery life in intermittently-active devices.
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STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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