Commonly used microcontrollers for industrial-grade equipment can be broadly divided into HC32L110C6PA-TSSOP20TR and HC32L136K8T6-LQFP64, both produced by Holtek.

1. HC32L110C6PA-TSSOP20TR
Core Architecture: 32-bit ARM Cortex-M0+ core
Maximum Clock Frequency: 48MHz
Memory: Flash 64KB, SRAM 8KB
Pin Count: 20 pins (TSSOP package)
Operating Voltage: 2.4V ~ 3.6V
Peripheral Interfaces: UART, SPI, I2C, ADC (12-bit resolution), Timer, Watchdog Timer, PWM Output, GPIO (General Purpose Input/Output)
Power Consumption: Ultra-low power mode, suitable for battery-powered applications
Operating Temperature Range: -40℃ ~ +85℃
Application Scenarios: Suitable for low-power IoT devices, smart sensors, home smart hardware, and portable devices
2. HC32L136K8T6-LQFP64
Core Architecture: 32-bit ARM Cortex-M3 core
Maximum Clock Frequency: 72MHz
Memory: Flash 128KB, SRAM 16KB
Pin Count: 64 pins (LQFP package)
Operating Voltage: 2.2V ~ 3.6V
Peripheral Interfaces: UART, SPI, I2C, ADC (12-bit resolution), DAC (8-bit resolution), Timer, Watchdog Timer, PWM Output, GPIO, CAN, USB (optional)
Power Consumption: Low power operating mode, suitable for complex applications
Operating Temperature Range: -40℃ ~ +85℃
Application Scenarios: Suitable for industrial control, automotive electronics, smart home and smart building control, communication devices, etc., requiring high-performance computing and peripheral interfaces
3. Other Common Types of Industrial Microcontrollers and Their Features
① 51 Microcontroller: A classic 8-bit microcontroller, suitable for teaching and scenarios with low performance requirements. Its features include strong bit manipulation capabilities and support for multiplication and division instructions, but relatively low performance.
② MSP430 Microcontroller: A 16-bit ultra-low power microcontroller, suitable for low-power industrial applications. Its features include low power consumption, high processing speed, and a rich instruction set.
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