STM32F429ZIT7 — STM32F4 Cortex-M4 180MHz MCU, 2MB Flash, 114 I/O, LQFP-144
STMicroelectronics STM32F4 series, 32-bit ARM Cortex-M4 single-core MCU, 180MHz, 2MB Flash, 256KB RAM, 144-LQFP tray, 114 I/O, Ethernet, USB OTG, 24x12b ADC, -40 to 105°C operating temperature, 1.7 to 3.6V supply, end-of-life lifecycle stage.
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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~105°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 | 2MB (2M x 8) |
Frequently asked questions
What is the recommended replacement if STM32F429ZIT7 is allocated?
The base product number is STM32F429; pin-compatible variants within the STM32F4 family with matching 180MHz speed, Ethernet MAC, USB OTG, and 114 I/O exist but must be verified for exact peripheral block match. RFQ with the base PN to surface cross-reference options.
Does the 24x12b ADC plus 2x12b DAC provide enough analog channels for a multi-axis drive?
24 A/D channels covers multi-axis sensor feedback without external signal conditioning at the rated -40 to 105°C ambient. The two 12-bit DAC channels handle reference outputs. The channel count is the headroom metric; verify per-channel conversion time against the control loop bandwidth requirement.
What firmware headroom do the 2 MB Flash and 256 KB RAM actually leave?
2 MB Flash minus typical bootloader (32 to 64 KB) and vector table leaves roughly 1.94 to 1.97 MB for the application image and OTA payload. 256 KB RAM is the ceiling for RTOS task stacks, DMA buffers, and frame buffers — firmware teams migrating from an F407 should re-size the memory map before assuming the same headroom ratio.