AT32F421G8U7

The AT32F421G8U7 is a cost-effective 32-bit microcontroller from Artery Technology, based on the ARM Cortex-M4 core (up to 120 MHz). It features 64 KB Flash, 16 KB SRAM, and supports USB 2.0 full-speed, making it ideal for embedded applications like consumer electronics and industrial control.
Key highlights:
- Core: ARM Cortex-M4 (no FPU)
- Memory: 64 KB Flash, 16 KB SRAM
- Peripherals: USB, USART, SPI, I²C, ADC (12-bit), timers
- Package: QFN28 (4x4 mm)
- Operating Voltage: 2.6V–3.6V
- Temperature Range: -40°C to +85°C
It offers low power consumption and high integration, suitable for compact designs. The AT32F421G8U7 is a competitive alternative to STM32F0/F1 series, with enhanced performance and cost efficiency.
For detailed specs, refer to Artery’s datasheet.

The AT32F421G8U7 (Arm Cortex-M4) has equivalents like:
- STMicroelectronics STM32F030x8 (M0, similar specs)
- NXP LPC845M301JBD48 (M0+, comparable features)
- GD32E230K8U6 (M23, pin-compatible alternative)
- APM32F103C8T6 (M3, close in performance)
Check pinout, peripherals, and voltage for exact compatibility.

The AT32F421G8U7 is a cost-effective 32-bit ARM Cortex-M4 MCU by Artery, featuring:
- Core: 120 MHz Cortex-M4 with DSP and FPU
- Memory: 64 KB Flash, 16 KB SRAM
- Peripherals: USB 2.0 FS, 1x 12-bit ADC (1 MSPS), 2x USART, 2x SPI, 2x I²C
- Timers: 7x 16-bit (incl. PWM, basic, advanced)
- GPIO: Up to 37 I/Os
- Package: QFN28 (4x4 mm)
- Operating Voltage: 2.6–3.6V
- Temperature Range: -40°C to +85°C
Ideal for compact, high-performance applications like consumer electronics and industrial control.

The AT32F421G8U7 is a 32-bit ARM Cortex-M4 microcontroller from Artery Tek.
- Pin Count: 28 pins (QFN28 package)
- Key Functions:
- GPIO: Up to 26 programmable I/O pins
- Communication: 2x USART, 2x SPI, 2x I²C
- Analog: 1x 12-bit ADC (10 channels)
- Timers: 5x 16-bit timers (including PWM)
- Debug: SWD (Serial Wire Debug)
- Clock: Up to 120 MHz core speed
- Memory: 64 KB Flash, 16 KB SRAM
Compact and versatile, it suits cost-sensitive embedded applications.

The AT32F421G8U7, a 32-bit ARM Cortex-M4 MCU by Artery, is widely used in:
- Consumer Electronics: Smart home devices, wearables, and toys.
- Industrial Control: PLCs, motor control, and automation systems.
- IoT & Wireless: Bluetooth/Wi-Fi modules and sensor nodes.
- Automotive: Auxiliary systems like lighting and small motor control.
- Medical Devices: Portable health monitors and diagnostic tools.
With its high performance, low power, and rich peripherals (USB, ADC, PWM), it suits cost-sensitive, compact designs.

The AT32F421G8U7 microcontroller comes in a QFN-28 (5x5 mm) package. This surface-mount type features a compact 28-pin configuration with a quad flat no-leads design, suitable for space-constrained applications. The 5x5 mm footprint balances performance and size, ideal for embedded systems.