FM151M is  a 32-bit  security chip with  multiple interfaces  including ISO7816,  SWP, UART, SPI,HSPI  and GPIO.  Its  built-in  memory is  implemented  with  a 1280KB  FLASH,  an  32KB RAM. Algorithms surported by the chip are symmetric algorithms SM1, SM7, SSF33, SM4, DES/3DES , asymmetric algorithms SM2, ECC RSA, and hash algorithms SM3, SHA1, SHA224  and SHA256. The security  chip has  a hardware true  random number  generator and  safety protection circuits built in and is capable of isolating and protecting multiuser programs.