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公开(公告)号:US4791322A
公开(公告)日:1988-12-13
申请号:US52660
申请日:1987-05-19
IPC分类号: H03K3/353 , H03K19/00 , H03K19/017 , H03K19/0175 , H03K19/0185 , H03K19/0952 , H03K19/092 , H03K17/16 , H03K19/094
CPC分类号: H03K19/0952 , H03K19/0013 , H03K19/01721 , H03K19/018535
摘要: This invention discloses a TTL compatible input buffer which includes means for preventing appreciable current flow into the buffer circuit upon input voltage being supplied to the input signal lead which is substantially above the voltages supplied to the voltage supply terminals of the circuit.
摘要翻译: 本发明公开了一种TTL兼容输入缓冲器,其包括用于在输入电压被提供给输入信号引线时防止可感知的电流流入缓冲电路的装置,该输入信号引线基本上高于提供给电路电压端的电压。