| 摘要 |
PURPOSE:To assure a suitable address function over all address lines, without increasing capacity of a decoder, by providing an MOS transistor on the way of row or column address lines. CONSTITUTION:An NOR type address decoder 2 is connected to one end of a word line 1, which is connected with a plurality of bit lines. A signal level control means 5 is provided on the way of the word line 1. In this means 5, an MOS transistor is used, and the gate and the source are connected to the word line 1 and the drain is connected to a power supply. With this constitution, even if the word line 1 is long or a voltage drop along the word line 1 is large, the means 5 can recover the signal voltage level. Thus, the signal level more than a prescribed value along the word line 1 can be assured without increasing the capacity of the decoder 2. |
