Abstract: The present invention is a data receiving device for receiving data created with a plurality of bits for each frame, and acquiring this data based on a receive side clock, wherein a timing candidate generation section generates at least three clock timings within the bit cycle as candidates of a data acquisition timing, a header read monitoring section reads a data signal at each clock timing of the timing candidate and monitors if the header is correctly read at each clock timing, a timing decision section decides the timing candidate at the center as the data acquisition timing if there are three or more timing candidates at which the header was correctly read, and a data acquisition section acquires the receive data at the decided data acquisition timing.