APM32E103RCT6

The APM32E103RCT6 is a 32-bit ARM Cortex-M3 microcontroller by Geehy Semiconductor. It operates at 72 MHz, with 256KB Flash, 48KB SRAM, and offers rich peripherals like USART, SPI, I2C, USB, CAN, and ADCs.
Compatible with STM32F103RCT6, it suits cost-sensitive applications in industrial control, consumer electronics, and IoT. Key features include:
- Core: Cortex-M3 (72 MHz max)
- Memory: 256KB Flash, 48KB SRAM
- Peripherals: 3x USART, 2x SPI, 2x I2C, 1x USB, 1x CAN, 2x 12-bit ADC
- Packaging: LQFP64
It supports 1.8V–3.6V operation and offers low-power modes. Ideal for replacements or new designs needing STM32-like performance at a lower cost.

The APM32E103RCT6 is a Cortex-M3 MCU from Geehy. Equivalent products include:
- STMicroelectronics STM32F103RCT6
- GD32E103RCT6 (GigaDevice)
- HK32F103RCT6 (Holtkon)
- MM32F103RCT6 (MindMotion)
These are pin-to-pin and software-compatible alternatives with similar specs (72MHz, 256KB Flash, 48KB RAM). Verify datasheets for exact compatibility.

The APM32E103RCT6 is manufactured by Geehy Semiconductor, a Chinese company specializing in microcontroller units (MCUs) and embedded solutions.
Geehy is known for producing ARM Cortex-M-based MCUs, including the APM32 series, which are often positioned as cost-effective alternatives to STM32 chips. The company focuses on industrial, consumer, and IoT applications, offering competitive performance and power efficiency.
Headquartered in Zhuhai, China, Geehy is part of China's growing semiconductor industry, aiming to reduce reliance on foreign MCU suppliers. Their products are widely used in domestic and international markets.

The APM32E103RCT6, a Cortex-M3 MCU by Geehy, is widely used in:
- Industrial Control: PLCs, motor control, HMI.
- Consumer Electronics: Smart home devices, wearables.
- Automotive: Body control, infotainment (non-safety critical).
- IoT: Sensor nodes, wireless modules.
- Medical Devices: Portable monitors, diagnostic tools.
- Embedded Systems: Data loggers, power management.
It offers high performance, low power, and rich peripherals (USB, CAN, ADC, etc.), making it versatile for cost-sensitive applications.

The APM32E103RCT6 comes in an LQFP-64 package. This surface-mount package has 64 leads, a low profile, and a quad flat design, making it suitable for compact PCB layouts. It is commonly used in embedded systems for its balance of size and pin count.