AT32F421F8P7

The AT32F421F8P7 is a cost-effective 32-bit microcontroller from Artery based on the ARM Cortex-M4 core, running at 120 MHz. It features 64 KB Flash, 16 KB SRAM, and supports a wide operating voltage (2.6V–3.6V).
Key peripherals include:
- 12-bit ADC (up to 1 MSPS)
- USART, SPI, I2C interfaces
- PWM timers & 16-bit advanced timers
- USB 2.0 Full-Speed support
It operates in -40°C to +105°C and comes in a TSSOP20 package. Ideal for consumer electronics, industrial control, and IoT due to its low power consumption and high performance.
Artery provides a free development ecosystem (AT32 IDE, BSP, and CMSIS support), making it a competitive alternative to STM32.

The AT32F421F8P7 (Arm Cortex-M4) has equivalents like:
- STMicroelectronics STM32F030F4P6 (Cortex-M0, lower performance)
- GD32E230F8P6 (Cortex-M23, similar specs)
- NXP LPC845M301JBD48 (Cortex-M0+, comparable features)
- STM32G031F8P6 (Cortex-M0+, newer but similar use cases).
For exact pin/feature parity, check datasheets. Artery's AT32 series is often compared to STM32/GD32.

The AT32F421F8P7 is a cost-effective 32-bit MCU from Artery Tech, based on the ARM Cortex-M4 core (up to 120 MHz). Key features:
- Memory: 64 KB Flash, 16 KB SRAM.
- Peripherals: 1x 12-bit ADC (1 MSPS), 2x USART, 2x SPI, 2x I2C, 1x 16-bit advanced PWM timer.
- GPIO: Up to 37 I/O pins.
- Operating Voltage: 2.6V–3.6V.
- Packages: LQFP48, QFN48.
- Temperature Range: -40°C to +85°C.
- Low Power: Sleep/Standby modes.
- Debugging: SWD/JTAG support.
Ideal for consumer electronics, IoT, and industrial control.

The AT32F421F8P7 is a 32-bit ARM Cortex-M4 microcontroller by Artery.
- Pin Count: 20 pins (TSSOP-20 package).
- Key Functions:
- GPIO: Multiple general-purpose I/O pins.
- Communication: USART, SPI, I2C interfaces.
- Analog: 12-bit ADC (up to 10 channels).
- Timers: General-purpose and advanced PWM timers.
- Debug: SWD (Serial Wire Debug) support.
- Clock: Internal RC oscillator (up to 120 MHz).
It is designed for cost-sensitive applications requiring high performance in a compact footprint.

The AT32F421F8P7, a 32-bit ARM Cortex-M4 MCU by Artery, is widely used in:
- Consumer Electronics: Smart home devices, wearables.
- Industrial Control: PLCs, motor control, sensors.
- IoT: Wireless modules, edge nodes.
- Automotive: Auxiliary systems (e.g., lighting, small actuators).
- Medical: Portable diagnostic tools.
- HMI: Touch panels, LED displays.
Its features (64 KB Flash, 16 KB RAM, 72 MHz speed, rich peripherals like USART/SPI/I2C) suit cost-sensitive, real-time applications.

The AT32F421F8P7 is packaged in a TSSOP-20 (Thin Shrink Small Outline Package) with 20 pins. This compact, surface-mount package is suitable for space-constrained applications, offering a balance of size and performance. It supports industrial-grade temperature ranges and is commonly used in embedded systems.