STM32F429ZET6 — STM32F4 Cortex-M4 MCU 180MHz 512KB Flash 144-LQFP
STMicroelectronics STM32F4 series, ARM Cortex-M4 single-core MCU running at 180MHz, 512KB Flash, 256KB RAM, 114 I/O, Ethernet and USB OTG, 24×12-bit ADC, 2×12-bit DAC, 144-LQFP tray package, -40°C to 85°C operating temperature.
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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) | 114 |
| Core processor | ARM® Cortex®-M4 |
| Case | 144-LQFP |
| Data converters | A/D 24x12b; D/A 2x12b |
| Program memory size | 512KB (512K x 8) |
Frequently asked questions
Can the STM32F429ZET6 run at full 180MHz clock in a 65°C panel ambient without active cooling?
The operating temperature rating is -40°C to 85°C ambient. At 65°C cabinet ambient the part is within its absolute rating, but whether derating is required depends on the board's junction-to-ambient thermal resistance — not a datasheet parameter. If thermal margin is uncharacterized, reducing the core clock is the conservative path. The supply range of 1.8V to 3.6V also requires a regulated 3.3V rail; a 5V rail without regulation is not within spec.
We need 18 simultaneous ADC channels at 12-bit resolution. Can the STM32F429ZET6's 24-channel ADC support this via DMA?
The part lists 24×12-bit A/D converters. The STM32F4 ADC supports sequential sampling across multiple channels triggered by DMA, which is the standard method for multi-channel acquisition in industrial data acquisition firmware. Concurrent sampling — all channels simultaneously — is not a supported mode on this ADC architecture; the hardware sequencer samples channel-by-channel at the configured conversion rate. The DAC channels (2×12-bit,) operate on a separate bus and do not consume ADC bandwidth.