The AX-Sigfox and AX-Sigfox-API devices comprise an AXSEM 8052 MCU and an AXSEM AX5043 wireless transceiver, and are certified as being Class 0 'Sigfox Ready', meaning they are available for immediate operation as a Sigfox node.
For straightforward IoT applications where the designer wishes to implement a single-chip solution and save the cost of a host MCU, such as a thermostat or actuator, the AX-Sigfox-API IC is said to provide the solution. The SoC has 64kByte of flash memory of which 32kByte is available for a user application.
Sleep current of either device is down to 950nA up to 45mA when transmitting at 14dBm output power. The receiver has a sensitivity of -129dBm measured at a data rate of 600bps with a power consumption of 10mA. The supply voltage can be in the range of 1.8 to 3.6Vdc.