| 摘要 |
PROBLEM TO BE SOLVED: To reduce a load current with respect to a boosted voltage by an output buffer. SOLUTION: The output buffer circuit is provided with a plurality of output drive transistors serially connected between a first voltage source and an earth, an output terminal which responds to the serially connected output drive transistor, a latch for receiving data output to the output terminal, a logical circuit for controlling the output drive transistor to drive the voltage of the output terminal at a high or low potential indicating the logical state of the output data in response to the latch, a boot capacitor for supplying additional voltages to some output drive transistors, a holding transistor for connecting the boost capacitor to a second voltage source in response to the logical circuit, and a self-timer type circuit path connected between the holding transistor and the boot capacitor. COPYRIGHT: (C)2006,JPO&NCIPI |
