CMOS data processing device

Abstract

Abstract PURPOSE:To simplify the constitution of the device and to reduce the power consumption by applying an oscillator output to a frequency division circuit, outputting a clock pulse having different frequency from the frequency division circuit, selecting the clock pulse and operating the processor based on the selected pulse. CONSTITUTION:An LSI is formed on a substrate and the LSI is provided with a CMOS data processor 5 and an oscillating circuit 1 having an inverting amplifier A connected to a crystal oscillator X. An output of the circuit 1 is applied to a frequency division circuit 2, from which plural clock pulses having different frequency are generated and they are applied to a multiplexer 4 and a basic clock phi is transmitted selectively to the processor 5 through transmission gates MOSFETQ1-Q3. Further, a decoder 4 receives an operating mode signal C from the processor 5 and control codes C0-C2 operating selectively FETQ1-Q3 are formed with the signal C. The constitution of the MOS data processor is simplified and the power consumption is decreased.

Inventors

• 👤 Yasushi Akao
• 👤 赤尾　泰

Bibliographic Details