Address decoding system

Abstract

Abstract PURPOSE:To reduce the access time, by directly inputting an address to a decoding circuit and applying the output of this circuit to a signal storage circuit. CONSTITUTION:An address A0-n is first applied to a decoder DEC for decoding. An output *DEC0-n is applied to a terminal D of a flip-flop and stored with an address set clock CLK-E. As a result, decoding outputs DEC0E-CnE are obtained from an output Q' terminal of the flip-flop. This is mentioned for ''E side'' and this can also be applied to ''O side''. All the decoding signals DEC0O-CnO can be selected at memory refresh by inputting a refresh signal *REFCY to reset terminals R of the flip-flops.

Inventors

• 👤 Sumiko Sugihara
• 👤 杉原　澄子
• 👤 Koichi Aida
• 👤 公一 会田

Bibliographic Details