The AT32F426 series is based on ARM® Cortex®-M4 core operating at a frequency of up to 180 MHz. This device features a single-precision floating point unit (FPU), digital signal processor (DSP), up to 128 KB Flash and 20 KB SRAM. It also embeds a 28 KB programmable boot memory - configured as a Bootloader or as one-time-programmable user instruction and data memory. The latter option can extend Flash memory up to 128+28KB. Besides, the device is equipped with an additional 1KB OTP as data storage area. The AT32F426 series offers a rich choice of peripherals including up to 2x I²Cs, 2x SPIs/I²Ss, 2x USARTs, 1x CAN-FD, 1x advanced timer, 5x 16-bit general-purpose timers, 1x basic timers, 1x low-power ERTC, 1x high-speed rail-to-rail input/output analog voltage comparator, 1x 12-bit 15-channel 2.5 Msps ADC, and up to 42 fast GPIO ports, providing excellent flexibility and ease of use to implement various applications.
The AT32F426 series is equipped with the Security Library (sLib) developed by Artery, supporting the use of password to protect the specified program area so that solution providers can program the core algorithm into this area and provides it to downstream customers for secondary development, which increases the security, reliability and convenience for secondary development. The AT32F426 devices can run well in the temperature range of -40 to 105°C , and provides a wide range of chips for selection, including LQFP48, QFN48, LQFP32, QFN32, QFN28 and mini TSSOP20, to meet diverse memory needs. With powerful on-chip resource allocation, high integration, cost-effective performance, the AT32F426 series is particularly suited for embedded system applications, such as motor control, industrial control and stage lighting.
