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STMicroelectronics STM32F429IIT6E — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F429IIT6E STM32F4 ARM Cortex-M4 MCU, 180 MHz

MPNSTM32F429IIT6E
Active

STMicroelectronics STM32F4 series STM32F429IIT6E, ARM Cortex-M4, 32-Bit Single-Core, 180MHz, 2MB (2M x 8) FLASH, 256K x 8 RAM, 176-LQFP, -40°C ~ 85°C.

$24.9300Ref. price · indicative, final on quote
STMicroelectronics STM32F429IIT6E datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F429IIT6E 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 size2MB (2M x 8)

Product details

180 MHz Cortex-M4 with 2 MB Flash — the display-capable workhorse

The 176-pin LQFP package exposes 140 I/Os, including an integrated LCD controller, Ethernet MAC, CAN bus, and USB OTG — a peripheral set that targets human-machine interface panels, industrial gateways, and motor-drive control boards where a display and a network link are both required.

Peripheral set — LCD, Ethernet, CAN, USB OTG on one die

The integrated LCD controller (supporting up to XGA resolution) and the Ethernet MAC with dedicated DMA are the two peripherals that separate this part from the smaller STM32F405/7 family. The 12-bit ADC bank has 24 channels and there are two 12-bit DACs, enough for multi-axis analog feedback in servo drives or sensor acquisition.

ST lists the STM32F429IIT6E as Active. The base product number is STM32F429, and the full family includes density and package variants that share the same peripheral set, providing a natural second-source path within the family if supply tightens.

176-LQFP — footprint and routing notes

Frequently asked questions

What is the difference between STM32F429IIT6 and STM32F429IIT6E?

The STM32F429IIT6 and STM32F429IIT6E are functionally identical — same 180 MHz Cortex-M4 core, same 2 MB Flash, same 256 KB RAM, same peripheral set, same 176-LQFP package. The 'E' suffix typically denotes a different silicon revision or stepping, but the two are pin-compatible and software-compatible. For a BOM line, they can be treated as drop-in replacements, though a full re-qualification (firmware regression, timing closure) is prudent when swapping revisions.

Does STM32F429IIT6E have support for external memory or LCD?

Yes. The STM32F429IIT6E includes a flexible memory controller (FMC) that supports external SRAM, SDRAM, NOR/NAND Flash, and PC Card via the EBI/EMI interface. It also integrates an LCD controller (TFT) that can drive parallel RGB displays up to XGA resolution without an external display driver IC. The 140 I/Os provide enough pins to connect both external memory and a display simultaneously.