The NVF04M recording chip is developed by Jiuxin Electronics, which uses a plug -in SPI memory to achieve the function of recording. Its main feature is that the sound is clear and the recording time is long. The recording time that can be provided is 32 minutes. One of the significant features of NV04FM is flexible storage time. Customers choose the corresponding plug-in SPI-FLASH capacity according to the length of the recording time they need, and the main control chip does not need to change. Compared with other recording chips or circuits, NVF04M has the advantages of long single -piece recording time, flexible control, low cost, and clear voice.

NVF04M has three modes: key control mode, and oral control mode, and second -line serial control mode. It is convenient to apply it in various occasions, which is a standardized recording module with high cost performance.

★ 32 -bit core CPU with a maximum frequency of 160MHz, maximum 16kb 4 road iCache;

★ 4 ~ 12kb iCachesram, 32kb SRAM;

★ The RC clock frequency is about 16MHz, LRC (low power RC) clock frequency, the frequency is about 32kHz, HTC (low drift internal high -frequency RC) clock frequency is 5MHz;

★ 8 programmable digital I/O pins;

★ A full speed USB1.1 speed, two UART controllers (UART0/1), UART1 supports DMA and traffic control*Two SPI controllers with DMA (SPI0/1);

★ Support the main/from mode, built -in SPI flash memory;

★ Support four -channel PWM output;

★ D type of audio amplifier can support the maximum 0.5W output;

★ MIC amplifier circuit, two analog audio input channels, can be equipped with 16 -bit high -precision ADC;

NVF series recording chips are suitable for occasions where various voice prompts, such as: blood pressure meter, attendance machine, blood glucose meter, medical device, massage device, foot bath, doorbell bot device, children's toys, voice alarm, car electronics, small appliances, small home appliances, small appliances, small appliances , Reading Buddhist machines, gaming machines, craft gifts, smart locks (fingerprint locks, password locks, swiping card locks), codes scanning machines, and so on.