MEMORY CELL DECODER, SEMICONDUCTOR MEMORY PROVIDED WITH THIS DECODER AND HIGH VOLTAGE SUPPLY METHOD FOR NONVOLATILE SEMICONDUCTOR MEMORY

摘要

PROBLEM TO BE SOLVED: To provide a memory cell decoder in which layout area is reduced by omitting an electric charge pump, while a high voltage signal can be supplied without deteriorating an operation characteristic even in low power source voltage. SOLUTION: A memory cell decoder is provided with a first node, a first transmitting section outputting a high voltage signal to the first node responding to activation of at least one first selection signal selecting a memory cell decoder, a control section generating a first control signal selecting a memory cell decoder responding to an address and discharging a signal of the first node when this first control signal is activated, and a second transmitting section outputting a word line enable signal enabling the word line responding to a signal of the first node when the first selection signal and the first control signal are activated to a memory cell.