I.e. IoT IoT RAM RAM, PSRAM technology is based on technology, it adds additional interface options, such as a low-pin-count most MCU / FPGA using Flash SPI interface, and easy to use system in package required SoC (SiP ) option more memory than the internal SRAM.
Things ram inherits the characteristics of the PSRAM active - combined with a relatively simple interface to the SRAM and DRAM memory cell technology, which interface simplifies the design, and SRAM reduced as compared to the cost of the product (10-fold reduction), and with an SRAM has a higher density than the IoT RAM 10 further includes a low delay times - allowing fast wake-up from the ultra low power mode and the fast power-up time; transient may wake up from a standby mode; IoT RAM also allows ultra-low current consumption - typically <0.15 to 0.5uA / Mb density-dependent. The higher the density, the lower the fixed power overhead trend.
FIG 1 IoT RAM occupies a middle ground best IoT / embedded applications require the expanded memory
As the PSRAM solved similar to the IoT / embedded applications, design constraints, it is possible to find a place in the feature phone products. Things PSRAM and RAM-based interfaces or SiP low pin count SPI option is required performance, cost and responsiveness based on the power MCU / SoC / FPGA ideal solution scheme is limited. Using a low pin SPI interface, can further improve the cost efficiency of the system based on the device MCU / SoC / FPGA's.
Memory the AP the IoT the RAM cost-effective solution with most MCU / SoC / FPGA appended SPI interface is compatible, including Quad-SPI and Octal-SPI interface. By "system in a package" (a SiP) option, the AP memory enabled "beyond molar," which is another way to increase system memory.