PURPOSE: To provide a transmitting circuit for TDMA by which the labor of the processing of a CPU part can be saved, and a data output can be speedily attained.

CONSTITUTION: This circuit is equipped with a slot number comparing part 3 which inputs a slot number to be transmitted, present slot number, and transmission clock which are assigned to a station, and outputs a data reading signal synchronized with the transmission clock when the slot number to be transmitted is matched with the present slot number. And also, the circuit is equipped with a first-in first-out memory 6 which preliminarily stores data outputted from a data outputting part 5 by the instruction of a preliminarily mounted CPU part 4, and outputs the stored data synchronized with the data reading signal.