Skip to main content
STMicroelectronics STM32F429IET6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F429IET6 ARM Cortex-M4 MCU, 180 MHz, 512 KB Flash

MPNSTM32F429IET6
Active

STMicroelectronics STM32F4 series, STM32F429IET6, ARM Cortex-M4 32-Bit Single-Core MCU, 180MHz, 512KB Flash, 256K x 8 RAM, 140 I/O, CANbus/Ethernet/USB OTG, 176-LQFP, -40°C to 85°C.

$15.2100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F429IET6 specifications
ParameterValue
SeriesSTM32F4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed180MHz
PackageTray
RAM size256K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG
Number of i (O)140
Core processorARM® Cortex®-M4
Case176-LQFP
Data convertersA/D 24x12b; D/A 2x12b
Program memory size512KB (512K x 8)

Product details

180 MHz Cortex-M4 with FPU — compute headroom for display and connectivity

Peripherals include a TFT LCD controller, DMA, PWM timers, and a full set of brown-out detect/reset and POR — the LCD interface is what distinguishes this part from the plain STM32F405 line. With 140 I/O lines in the 176-LQFP package, you can route a parallel LCD, an Ethernet PHY, and a CAN transceiver without multiplexing conflicts.

It is not AEC-Q100 qualified, so it does not belong in an automotive under-hood or chassis-domain BOM.

176-LQFP — rework and layout notes

The 176-LQFP (24x24 mm body) has a 0.4 mm pitch — fine enough that a misplaced via under the toe of the lead can cause a solder bridge.

Frequently asked questions

What is the difference between STM32F429IET6 and STM32F429IIT6?

The difference is the Flash density: the STM32F429IET6 carries 512 KB, while the STM32F429IIT6 carries 2 MB. Both share the same 176-LQFP footprint, Cortex-M4 core at 180 MHz, and peripheral set, so the IIT6 is the drop-in upgrade for firmware that outgrows the 512 KB budget.

Can STM32F429IET6 be used for automotive applications?

No. It is not specified for automotive under-hood or chassis-domain deployments.