AT32F421 (value line) series microcontroller incorporates ARM®
Cortex®-M4 core, up to 120 MHz CPU computing speed and embedded data signal
processor (DSP) supporting up to 64 KB Flash memory and 16 KB SRAM, up to 2 x USARTs, 2
x SPIs (multiplexed I²S), 2x I²Cs, a 16-bit advanced timer, 5 x 16-bit general-purpose
timers and 5-channel DMA controller, and also includes two high-speed rail to rail
input/output analog voltage comparators, a 12-bit 15 channels high-speed ADC with 2M SPS
that meet the requirements of high-speed data acquisition, mixed signal processing,
industrial control and motor applications. Almost fast I/Os are 5 V-tolerant with a
variety of optional functions to support function remapping, excellent flexibility and
ease of use to implement various applications.
AT32F421 series is equipped with the Security Library (sLib) developed by Artery,
supporting the use of password to protect the specified program area so that IDH 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.
AT32F421 devices can run well in the temperature range of -40 to 105°C , and provides a
wide range of chips for selection, such as LQFP48, LQFP32, QFN32, QFN28 and mini TSSOP20
in response to diverse memory needs. Its powerful on-chip resource allocation, high
integration, cost-effective performance bring up the first-class competitive edge in the
chip market.
