AT32F406 series is based on on the high-performance ARM® Cortex®-M4 32-bit core operating at a frequency of up to 216 MHz.
This device features a single-precision floating-point unit (FPU), digital signal processor (DSP), up to 512 KB Flash memory, and 192 KB SRAM.
It also embeds a 26 KB system memory, which can serve as a Bootloader or be configured as one-time programmable user instruction and data memory.
The latter option extends the maximum available Flash memory space to 512+26 KB.
In addition, the device offers a rich choice of peripherals and advanced I/O ports. It incorporates 1 x QSPI interface, 6 x USARTs, 2 x UARTs, 8 x SPI interfaces (supporting half-duplex I²S mode), 3 x I²C interfaces,
3 x 12-bit high-speed ADCs with sampling rates of up to 5.33 Msps, 1 x 16-bit advanced timer, 7 x 16-bit general-purpose timers, 1 x 32-bit general-purpose timer,
2 x 16-bit basic timers, 1 x low-power ERTC, and 1 x infrared transmitter. It also features the integrated sLib Security Library.
Almost all GPIOs are 5 V tolerant and support fast toggling capability, making the device suitable for a wide range of embedded control applications
The AT32F406 operates over the industrial temperature range of -40 to 105 oC and is available in multiple package options,
including LQFP64 and QFN48, to meet diverse application requirements.
It is particularly suitable for applications such as industrial automation, USB accessories, Internet of Things (IoT),
consumer electronics, and other embedded control applications.
