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STMicroelectronics STM32F437IIT6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F437IIT6 MCU, ARM Cortex-M4 180MHz, 2MB Flash, 176-LQFP

MPNSTM32F437IIT6
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STMicroelectronics STM32F4 series STM32F437IIT6, ARM Cortex-M4 32-bit MCU, 180MHz, 2MB Flash, 256K x 8 RAM, 140 I/O, 176-LQFP, -40 to 85°C.

$19.6200Ref. price · indicative, final on quote
STMicroelectronics STM32F437IIT6 datasheet (PDF)
Packaging176-LQFP
RoHSROHS3 Compliant
SeriesSTM32F4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F437IIT6 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 performance tier

The 176-LQFP package (24x24 mm) exposes 140 I/O pins, enough to interface with parallel displays, external memory buses, and multiple sensor arrays on a single board.

Peripheral set and connectivity — what the 140 I/O buy you

The connectivity block covers CANbus, Ethernet, USB OTG, multiple SPI and I²C interfaces, plus EBI/EMI for external memory or FPGA glue. For a board that needs both a display interface and wired networking, this part consolidates what would otherwise require a companion chip.

That means no last-time-buy window to track, no end-of-life notice to schedule around.

Frequently asked questions

What is the maximum clock speed of STM32F437IIT6?

The STM32F437IIT6 is rated for a 180 MHz core clock. That speed determines how fast the Cortex-M4 can execute instructions and service peripherals — budget for flash wait states when running above 120 MHz.

How many I/O pins does STM32F437IIT6 have?

The STM32F437IIT6 provides 140 I/O pins in the 176-LQFP package. That count includes the multiplexed peripheral functions — check the alternate-function mapping in the datasheet to confirm your specific signal allocation.