With the popularity of home intelligent medical equipment,high precision,low power consumption and high stability have become the core competitive points of electronic sphygmomanometer products.Electronic sphygmomanometer relies on modern electronic sensing technology and the principle of indirect blood pressure measurement to accurately capture the fluctuation data of human blood pressure and complete the detection of systolic blood pressure,diastolic blood pressure and heart rate.As the core control unit of the equipment,MCU microcontroller's performance directly determines the measurement accuracy,endurance and use experience of sphygmomanometer.The national technology N32L406 MCU microcontroller is specially developed for portable medical equipment,which can perfectly meet the application requirements of electronic sphygmomanometer.
 

N32L406 MCU microcontroller is equipped with a 32-bit ARM Cortex-M4F core,and its maximum working frequency can reach 64MHz.It supports floating-point operation and DSP instructions,and has sufficient computing power to run blood pressure detection algorithms efficiently.The chip has built-in 128KB embedded Flash and 24KB SRAM storage resources to meet the requirements of device program storage and data cache.At the same time,it integrates a variety of high-performance analog peripherals,including 12-bit 4.5 msps high-speed ADC,rail-to-rail operational amplifier,high-speed comparator and 1Msps 12bit DAC.With rich digital communication interface and LCD driver interface,there is no need to pile up additional peripheral devices,which greatly simplifies the hardware architecture of sphygmomanometer.
 

The 4.5Msps high-speed ADC sampling module equipped with MCU microcontroller equipment can quickly capture the subtle pressure fluctuation signal of blood pressure cuff,accurately complete the digital conversion of analog signal,effectively avoid data deviation,and make the blood pressure and heart rate detection results more accurate,which is suitable for home accurate monitoring scenarios.
 

For battery-powered portable sphygmomanometer equipment,the MCU microcontroller has industry-leading low power consumption characteristics,with dynamic operation power consumption of only 60μA/MHz and static power consumption as low as 2μA..At the same time,it supports ultra-low power data retention and fast wake-up function,which greatly reduces the standby and running power consumption of equipment and effectively prolongs the service life of battery.
 

The MCU microcontroller is highly integrated with SPI,USART,TIMER and other common peripherals,and supports the maximum 320-segment LCD high-definition display,which can meet the visual display requirements of sphygmomanometer data.Built-in hardware cryptographic algorithm acceleration engine can ensure the safety of data transmission and storage of equipment,avoid the risk of data leakage,and the high integration feature can also reduce the cost of equipment research and development and mass production.
 

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