AT32F403A high-performance microcontrollers, powered by 32-bit ARM®
Cortex®-M4 core, utilize advanced process to achieve 240 MHz computing speed.
The embedded single precision floating-point unit (FPU) and digital signal processor
(DSP), rich peripherals and flexible clock control mechanism can meet an extensive range
of applications. The superior memory design supports up to 1 MB Flash memory and 224 KB
SRAM, with the excellent Flash access zero wait far beyond the same level of the chip
In addition to highly efficient computing performance, AT32F403A series also imports the
Security Library to support the use of password to protect the specified program area,
in which IDH programs the core algorithm and provides to downstream customers for
secondary development. Meanwhile, AT32F403A series supports eight sets of UART serial
interfaces and two sets of CAN buses that are well suited for IoT applications. The USB
device applications without the need of external crystal oscillators can not only
enhance the reliability of terminal products but reduce costs as well.
AT32F403A devices can run in the temperature range of -40 to 105°C , and offer a wide
range of chips for selection in response to diverse memory requirements. Its rich
on-chip resource allocation, high integration, cost-effective performance and
first-class market competitiveness can satisfy the higher market demands like industrial
automation, motor control, IoT and consumer electronics.