STMicroelectronics STM32F479IIT6 — 180 MHz Cortex-M4 MCU, 2 MB Flash, 384 KB RAM
STMicroelectronics STM32F4 series, STM32F479IIT6, 180 MHz ARM Cortex-M4, 2 MB Flash, 384 KB RAM, 131 I/O, Ethernet MAC, CAN/LIN/USB OTG, 24×12b A/D and 2×12b D/A, 1.7–3.6 V supply, -40°C to 85°C, 176-LQFP tray.
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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 | 384K 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, SAI, SDIO, SPI, UART/USART, USB, USB OTG |
| Number of i (O) | 131 |
| Core processor | ARM® Cortex®-M4 |
| Case | 176-LQFP |
| Data converters | A/D 24x12b; D/A 2x12b |
| Program memory size | 2MB (2M x 8) |
Frequently asked questions
Does the STM32F479IIT6 have a pin-compatible replacement with the same 176-LQFP footprint and 131 I/O?
No successor order code appears in this ledger. Any cross-family replacement — including ST's own STM32F7 series — requires pin-out, register, and peripheral compatibility verification before it can be treated as a drop-in. Do not assume equivalence without confirming through ST's product lifecycle documentation or an FAE.
Does the integrated Ethernet MAC require an external PHY, and what does that mean for Profinet IRT?
The Ethernet MAC is on-die; an external PHY is required for any Ethernet connection. For Profinet IRT or other time-sensitive Ethernet protocols, the external PHY must support hardware timestamping — the MAC handles the protocol, but PTP synchronization precision depends on the PHY's timestamping capability. Verify PHY selection against the protocol stack requirements before finalizing the design.
What programming and debugging interface does the STM32F479IIT6 support?
STMicroelectronics Cortex-M4 MCUs support both SWD (Serial Wire Debug) and JTAG interfaces for programming and debugging. SWD is the standard interface for production programming and is sufficient for most use cases; JTAG is available if chain-mode debugging or boundary scan is required. SWD uses two pins (SWDIO, SWCLK) versus the four or more required for JTAG, which matters on boards with constrained I/O.