In the design of embedded system,the expansion of RAM resources has always been the focus of developers.Especially with the rise of Internet of Things,intelligent voice,image processing and other applications,MCU's demand for memory is growing.The traditional parallel SRAM is limited by many pins,high cost,large size and other problems,which can no longer meet the demand.SQPI PSRAM has become an alternative to the expansion of single-chip SRAM.

 

　　SQPI PSRAM is a pseudo static random access memory based on serial interface.It combines the high-density storage characteristics of DRAM with the ease of SRAM,and its interface protocol is completely compatible with the standard SPI SRAM through the built-in self-refresh circuit.Simply put,it stores data like DRAM,but it is as simple to use as SRAM.Compared with SPI interface SRAM on the market,high-performance SQPI PSRAM has the advantages of large capacity,high speed,lower price and smaller volume.As long as MCU has SPI or Quad SPI interface,it can easily realize the expansion of RAM.

 

　　SQPI PSRAM adopts serial peripheral interface(SPI),and supports single-wire,double-wire,four-wire and even eight-wire transmission modes,among which Quad SPI(SQPI)mode is particularly common,which can greatly improve the data transmission bandwidth.Compared with the traditional parallel interface,SQPI PSRAM significantly reduces the number of pins and the complexity of PCB layout,which is very suitable for embedded devices with limited space.

 

　　Yingshang acts as an agent for a variety of SQPI PSRAM product models,and can provide a variety of compatible SRAM expansion and expansion schemes.Whether it is a voice wake-up module in smart home,a real-time data cache in industrial control,or an image processing in consumer electronics,our SQPI PSRAM can give full play.If you need it,please come and consult.