| 摘要 |
<p>PURPOSE:To reduce power consumption and to easily form an integrated circuit by constituting a power ON preset circuit only of plural field effect transistors (FETs). CONSTITUTION:The power ON preset circuit is constituted of the 1st part 10 consisting of FETs 20-24 and the 2nd part 15 consisting of FETs 31-35. When supplied power VDD is impressed to a latching register, the power is supplied also to the parts 10, 15 between terminals 25, 26. When an input 20 to which an enable signal is supplied is held at a logically low state at the time of supplying the power, the logically low state is supplied to an AND gate 40 to initialize the latching register. When a logically high pulse is inputted to the input 27, an output 36 is turned to a logically high state and held at the state, so that the preset circuit is effectively turned to an undriven state.</p> |
