A radio communication equipment is provided with a clock generating section which generate an operation clock signal for a communication permitting period in which communication with an external device is permitted by carrying data over electric wave and a power-down clock signal for non-communication period respectively based on control signals. A high-speed counter is provided for counting an operation clock signal for controlling the communication permitting period. A low-speed slot counter is provided for counting a power-down clock signal for controlling the non-communication period. A clock control section is provided for outputting the count value of the high speed counter and the count value of the low speed counter, and continues to count a count value between the high speed slot counter and the low speed counter.