Function

Touch Sensing and Button Control
With the built-in touch sensing controller of the CA51M151T3A MCU, there is no need to connect external capacitors. It can support up to 26 touch channels at most, enabling precise detection and control of multiple touch buttons. It can keenly capture various touch gestures such as light touches, long presses, and double taps, meeting different operational requirements.
Parameters such as the trigger threshold and response time of each touch button can be flexibly configured through software to adapt to different application scenarios and user operation habits. This effectively reduces the probability of false triggering and improves the accuracy and reliability of touch operations.

Built-in Functional Modules and Auxiliary Functions
It integrates 26 channels of 12-bit ADCs, which can be used to collect external analog signals and realize functions such as ambient light intensity detection and temperature sensor data collection. It provides the development board with more environmental perception capabilities and enriches the functions and application scenarios of the system.
It is equipped with functional modules such as 16-bit PWM and Low Voltage Detection (LVD). The PWM can be used to control the rotation speed of motors, adjust the brightness of display screens, etc.; the LVD can monitor the power supply voltage in real time. When the voltage is lower than the set threshold, it can trigger corresponding reset or interrupt operations to ensure the stability and reliability of the system.

Low Power Consumption Management
The CA51M151T3A MCU supports three power-saving modes, namely IDLE, STOP and low-speed operation. In the standby state or when there is no operation for a long time, the module can automatically enter the low-power mode, effectively reducing the power consumption of the system.

Specification

• MCU: CA51M151T3A
• Core:
  CPU: 1T 8051, with a maximum speed 10 times faster than that of the traditional 8051
  It is compatible with the 8051 instruction set and has a dual DPTR working mode
• Operating temperature: -40 ~ +85 °C
• Clock system:
  External low-speed oscillator: 32.768 KHz
  Built-in low-speed RC oscillator: 128 KHz
  Built-in high-speed RC oscillator: 8 MHz, with an accuracy of ±2% @ 5V/25 °C (factory calibrated)
• Touch keys:
  It has a built-in touch sensing controller and does not require external capacitors
  It can support a maximum of 26 touch channels
  It has high anti-interference performance and complies with EMC (CS dynamic 10V, EFT 4KV) standards
  It supports touch interrupts
  It supports the parallel connection of touch channels, which can be used to implement the low-power mode
• Low power consumption:
  In STOP mode, the current is less than 7uA
  In IDLE mode, the current is less than 33uA
• Reset mode: Power-on/power-off reset, software reset, watchdog reset, low-voltage detection reset