STM32F446VCT6 — STM32F4 MCU, 180MHz, 256KB Flash, 81 GPIO, 100-LQFP
STMicroelectronics STM32F4 series, STM32F446VCT6 is a 32-bit ARM Cortex-M4 single-core MCU operating at 180MHz with 256KB Flash, 128KB RAM, CANbus/USB OTG/SPI/I²C/UART connectivity, 81 GPIO, 1.7–3.6V supply, -40 to 85°C, in 100-LQFP tray package.
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Specifications
| Parameter | Value |
|---|---|
| Series | STM32F4 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.7V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 180MHz |
| Package | Tray |
| RAM size | 128K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, LVD, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, LINbus, SAI, SD, SPDIF-Rx, SPI, UART/USART, USB, USB OTG |
| Number of i (O) | 81 |
| Core processor | ARM® Cortex®-M4 |
| Case | 100-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 256KB (256K x 8) |
Frequently asked questions
Does the STM32F446VCT6 have an identical pinout and supply rail map to the STM32F407VGT6 for a drop-in swap?
Pinout and supply compatibility across STM32F4 sub-series is not guaranteed — the STM32F446 and STM32F407 share the same 100-LQFP package and 0.5mm pitch, but peripheral assignment and power-rail multiplexing differ. A drop-in swap without PCB spin cannot be assumed; verify the alternate function mapping and power domains against each variant's pinout datasheet before committing a substitution.
What is the thermal headroom at 75°C panel ambient with the 180MHz Cortex-M4 running near maximum load?
The STM32F446VCT6 is rated to 85°C TA maximum. At 75°C ambient you have 10°C of headroom against the absolute maximum, but whether that satisfies your board-level θJA depends on your layout, thermal pad attachment, and copper area — the 200mW dissipation figure you cite is plausible for sustained Dhrystone load but should be validated against the part's power consumption plots at 180MHz with your specific supply voltage before finalizing thermal design without forced airflow.