STM32F439BIT6 — STM32F4 180MHz 32-Bit MCU, 2MB Flash, 256KB RAM, 208-LQFP
MPNSTM32F439BIT6
End of Life
STMicroelectronics STM32F4 series, 32-bit ARM Cortex-M4 single-core MCU, 180MHz, 2MB Flash, 256KB RAM, 168 I/O, 208-lead LQFP (28×28mm) tray, 1.8–3.6V supply, -40°C to 85°C.
$22.6300Ref. price · indicative, final on quote
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Specifications
| Parameter | Value |
|---|---|
| Series | STM32F4 |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 180MHz |
| Package | Tray |
| RAM size | 256K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT |
| Connectivity | CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG |
| Number of i (O) | 168 |
| Core processor | ARM® Cortex®-M4 |
| Case | 208-LQFP |
| Data converters | A/D 24x12b; D/A 2x12b |
| Program memory size | 2MB (2M x 8) |
Frequently asked questions
Does the STM32F439BIT6 drop into an existing STM32F407 board layout?
The STM32F439BIT6 uses a 208-lead LQFP package, whereas many STM32F407 variants use a 144-lead LQFP. The 168 I/O count and 208-lead footprint differ sufficiently that a direct layout swap is not guaranteed — verify the pinout mapping and PCB pad compatibility before committing a retrofit.
What temperature range does the STM32F439BIT6 support?
The STM32F439BIT6 is rated for -40°C to 85°C ambient (TA). This is the industrial temperature grade, not the full automotive -40°C to 125°C range. At 180MHz under sustained compute load near the 85°C upper limit, junction temperature and PCB thermal design require attention.