I have a requirement where I am trying to build a temperature data logger and due to size constraints, I have chosen Attiny85 as the microccontroller. I will be using a MAX6675 with a thermocouple (Max6675 is a kit purchased from the internet) I would like to know if a MAX6675 can be integrated with Attiny85. I know MAX6675 uses SPI and Attiny can be programmed to use its USI as SPI. But other than that I would like to know the feasibility of this project before I order the Attiny85. If it is feasible, a custom pcb will be designed with Attiny85 and max6675 in a single pcb.
EDIT: I am planning on using just 1 K-type thermocouple for this application.
EDIT 2 : It has to be a thermocouple because of we have it custom made for it to fit into the product and I need to measure the temperature of that said product. Also the temperature might go upto 750 deg C .