APM32F103RBT6

The APM32F103RBT6 is a 32-bit ARM Cortex-M3 microcontroller by Geehy, pin-to-pin compatible with STM32F103. It features:
- 72 MHz max clock speed
- 128 KB Flash, 20 KB SRAM
- 2x 12-bit ADCs, 7x timers
- USB, USART, SPI, I2C, CAN interfaces
- 2.0–3.6V operating voltage
Ideal for cost-sensitive applications like industrial control, consumer electronics, and IoT, it offers a balance of performance and power efficiency. Its compatibility with STM32 simplifies migration.

The APM32F103RBT6 is a Cortex-M3 MCU from Geehy. Equivalent products include:
- STMicroelectronics: STM32F103RBT6
- GigaDevice: GD32F103RBT6
- Nations: N32G103RBT6
- Puya: PY32F103RBT6
These are pin-to-pin and software-compatible alternatives with similar performance. Always verify datasheets for minor differences in peripherals or electrical specs.

The APM32F103RBT6 is a 32-bit ARM Cortex-M3 microcontroller by Geehy.
- Pin Count: 64 pins (LQFP package)
- Key Functions:
- GPIO: Up to 51 general-purpose I/O pins.
- Communication: 3x USART, 2x SPI, 2x I2C, 1x USB 2.0.
- Analog: 2x 12-bit ADC (16 channels), 1x 12-bit DAC.
- Timers: 4x 16-bit timers, 2x PWM-capable advanced timers.
- Debug: SWD & JTAG support.
- Memory: 128KB Flash, 32KB SRAM.
It is pin-compatible with the STM32F103RBT6, making it suitable for cost-sensitive replacements.

The APM32F103RBT6, a Cortex-M3 MCU by Geehy, is widely used in:
1. Industrial Control – PLCs, motor control, automation.
2. Consumer Electronics – Smart home devices, wearables.
3. Medical Devices – Portable monitors, diagnostic tools.
4. Automotive – ECUs, sensors, lighting control.
5. IoT & Communication – Wireless modules, gateways.
6. Embedded Systems – HMI, data loggers.
With features like 128KB Flash, 20KB RAM, and multiple peripherals (USART, SPI, I2C, ADC, PWM), it suits cost-sensitive, real-time applications.

The APM32F103RBT6 comes in an LQFP-64 package. This surface-mount type has 64 leads, a low-profile quad flat design, and a 10x10mm body size. It's suitable for compact PCB layouts and offers good thermal and electrical performance.