ARM Cortex-M7 480 MHz · 128KB Internal Flash · 1MB SRAM · UFBGA-176 · Cost-Optimized H7 with External QSPI Flash Execution
| Part Number | STM32H750IBK6 |
|---|---|
| Manufacturer | STMicroelectronics |
| Core | ARM Cortex-M7 + DSP (Double Precision FPv5) |
| Max Frequency | 480 MHz (1027 DMIPS / 2.14 DMIPS/MHz) |
| Internal Flash | 128 KB — firmware executes from external QSPI Flash |
| SRAM | 1 MB (128KB DTCM + 64KB ITCM + 864KB AXISRAM) |
| Package | UFBGA-176 (10×10mm, 0.65mm pitch) |
| Supply Voltage | 1.62 V – 3.6 V |
| Operating Temperature | −40°C to +85°C (Industrial) |
| GPIO Pins | 140 (5V tolerant I/O) |
| L1 Cache | 16KB I-cache + 16KB D-cache |
| RoHS Compliant | Yes |
| Supply Voltage (VDD) | 1.62 V – 3.6 V |
|---|---|
| Supply Voltage (VBAT) | 1.55 V – 3.6 V |
| I/O Voltage | 3.3 V (5V tolerant on most pins) |
| Run Mode Current (480MHz) | ~280 mA typical (Please confirm with manufacturer datasheet) |
| Stop Mode Current | ~150 µA (Please confirm with manufacturer datasheet) |
| Standby Mode Current | ~2.5 µA (Please confirm with manufacturer datasheet) |
| ADC Resolution | 12-bit, 3× ADC, up to 5 MSPS, 20 channels |
| DAC | 12-bit, 2× DAC |
| QSPI Interface | Dual QSPI (up to 100 MHz DDR, 200 MB/s) |
| Timers | 2× advanced, 12× general purpose, 2× basic |
| UART / USART | 10× (up to 12.5 Mbit/s) |
|---|---|
| SPI | 6× SPI (up to 100 Mbit/s) |
| I²C | 4× I²C (Fast mode Plus, 1 MHz) |
| USB OTG | 1× USB 2.0 FS + 1× USB 2.0 HS with ULPI |
| CAN-FD | 2× CAN-FD (Flexible Data Rate, up to 8 Mbps) |
| SDIO | 2× SDMMC |
| DMA | 2× MDMA + 2× DMA controllers |
| Ethernet MAC | 10/100 Mbit/s with dedicated DMA and PTP |
| DCMI | 1× Digital Camera Interface |
| FMC | Flexible Memory Controller (SRAM/NOR/NAND/SDRAM) |
| Part Number | STM32H750IBK6 |
|---|---|
| Orderable Qty | 1 pcs – 10,000+ pcs |
| Price (1–9 pcs) | Contact for quote |
| Price (10–99 pcs) | Contact for quote |
| Price (100–499 pcs) | Contact for quote |
| Price (500+ pcs) | Best pricing available |
| Lead Time (stock) | 3–7 business days |
| Packaging | Tray (BGA) |
| Export Control | EAR99 (No license required) |
The STM32H750IBK6 is a strategically optimized member of ST's H7 family, delivering the full 480 MHz Cortex-M7 processing power and massive 1MB of SRAM at a significantly lower cost point than the H743 series. The trade-off is internal Flash reduced to just 128KB — enough for a bootloader and critical initialization code. All application firmware executes from an external QSPI Flash memory chip via the chip's dual QSPI interface (Memory-Mapped mode), enabling execute-in-place (XIP) at up to 100 MHz DDR for near-internal-Flash performance. This architecture makes the H750 the most cost-effective way to get 480 MHz Cortex-M7 performance in a drone flight controller.
The economic advantage is compelling: a W25Q128JV 128Mb QSPI Flash costs under $0.50 in volume, compared to the silicon die area required for 2MB of embedded Flash. By offloading firmware storage to external QSPI, ST can price the H750 IBK aggressively while still delivering the same core performance and 1MB SRAM as its H743 sibling. The dual QSPI interface supports memory-mapped read throughput of up to 200 MB/s, and the 16KB I-cache + 16KB D-cache effectively hide QSPI latency for frequently accessed code paths. For flight controller firmware in the 512KB–2MB range, the external QSPI approach is transparent to end users.
In the drone industry, the H750 IBK is gaining traction as a budget H7 option for Betaflight and ArduPilot. Popular boards include the Matek H750 and various open-source designs that pair the H750 with a W25Q128 or W25Q256 external Flash. The 1MB internal SRAM provides ample headroom for all flight control algorithms, while the 480 MHz core delivers the same 8 kHz+ gyro/PID performance as premium H7 offerings. For developers seeking maximum H7 performance at minimum BOM cost, the STM32H750IBK6 paired with external QSPI Flash is the optimal solution.
Get STM32H750IBK6 — same Cortex-M7 core, same 1MB SRAM, much lower price. Global shipping from UAVCHIP.
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