280 MHz Cortex-M7 — what it means for the BOM
The STM32H7B0IBT6 is an STMicroelectronics 32-bit MCU built around the ARM Cortex-M7 core running at 280 MHz. That clock rate, paired with 1.4 MB of on-chip RAM, makes this part a fit for applications that need real-time DSP, high-speed data acquisition, or large frame buffers — think motor-control loops with fast current sensing, or a display interface handling 24-bit colour without an external SRAM. The 128 KB Flash is modest for the class, so firmware must be lean or rely on external serial Flash for code storage; the RAM is the headline resource here.
Connectivity and I/O density
With 138 I/O lines and a peripheral set that includes Camera, CANbus, EBI/EMI, HDMI-CEC, I²C, SPI, UART/USART, and USB OTG, this MCU can serve as the central controller in a multi-interface system — a gateway aggregating sensor data over CAN and sending it upstream via Ethernet or USB. The EBI/EMI interface allows direct connection to external parallel memory or FPGAs without a glue-logic latch.
Industrial temperature range and package
Rated for -40°C to 85°C ambient, the part suits factory-floor controllers, outdoor telecom cabinets, and engine-bay electronics that see thermal cycling. The 176-LQFP package (24x24 mm) is a standard surface-mount footprint, though the 138 I/O require a multi-layer PCB with at least four signal layers to route cleanly.
Lifecycle status — EOL, last-time-buy window
The lifecycle stage is flagged as end-of-life (EOL). Procurement should plan for a last-time-buy notice.