STM32F405

The STM32F405xx family is based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 168 MHz. The Cortex-M4 core features a Floating Point Unit (FPU) single precision which supports all Arm single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a Memory Protection Unit (MPU) which enhances application security.

The series incorporates high-speed embedded memories, including up to 1 Mbyte of Flash memory and up to 192 Kbytes of SRAM. This includes 64 Kbytes of CCM (Core Coupled Memory) data RAM, optimized for high-speed data processing without wait states. Additionally, 4 Kbytes of backup SRAM are provided to retain data in the lowest power modes.

High-performance analog capabilities include three 12-bit ADCs capable of 2.4 MSPS, or up to 7.2 MSPS in triple interleaved mode. Two 12-bit DACs and up to 17 timers (including 16-bit and 32-bit advanced-control timers for motor control) provide robust support for complex control systems.

Rich connectivity options are a hallmark of the F405, featuring three I2C interfaces, three SPIs, and two full-duplex I2S interfaces. Communication is further enhanced by four USARTs and two UARTs supporting up to 10.5 Mbit/s, alongside dual CAN 2.0B interfaces and SDIO support.

The STM32F405xx targets industrial, medical, and consumer applications requiring high compute performance and rich connectivity in a power-efficient package. With multiple low-power modes and a wide supply voltage range (1.8V to 3.6V), it is the ideal foundation for the next generation of intelligent edge controllers.