Shift register circuit

Abstract

Abstract PURPOSE:To reduce the number of inputs of clock signals to simplify the constitution by using only one N-channel IGFET and only one P-channel IGFET as IGFETs operated as transfer switches. CONSTITUTION:When a clock signal V (P4) is in the high level, an N-channel IGFETQ9 is made conductive, and a P-channel IGFETQ10 is made non-conductive, and an input signal I3 is transferred to a node 7 and is amplified by an inverting amplifier A6. At this time, voltages of a node 9 and an output terminal O3 are held in preceding voltages because the IGFETQ10 is made non-conductive. When the signal V (P4) is in the low level, the IGFETQ9 is made non-conductive, and a voltage V of nodes 7 and 8 is held in the preceding voltage, but the IGFETQ10 is made conductive, and the voltage V of the node 8 is transferred to the node 9, and an inverted signal of the node 9 is outputted to the output terminal O3.

Inventors

• 👤 Eiji Sugimoto
• 👤 栄治 杉本

Bibliographic Details