Low consumption TTL-CMOS input buffer stage
    10.
    发明公开
    Low consumption TTL-CMOS input buffer stage 失效
    TTL-CMOS Eingangspufferstufe mit geringem Leistungsverbrauch

    公开(公告)号:EP0928068A1

    公开(公告)日:1999-07-07

    申请号:EP97830743.7

    申请日:1997-12-31

    CPC classification number: H03K19/0016

    Abstract: The invention relates to a low-consumption TTL-CMOS input buffer stage (10) of the type which comprises a chain of inverters (11,12,13,14) cascade connected between an input (APAD) receiving electric signals at a TTL logic level and an output (ADD) reproducing electric signals at a CMOS logic level, and powered between a first or supply voltage reference (Vcc) and a second or ground reference (GND). Advantageously, the first inverter (11) in the chain includes a means (15,MP2,MN2) of selecting the delivery path to the stage (10) according to an activate signal (LOWPOWER) for a low-consumption operation mode.
    In essence, the first inverter (11) of the buffer (10) has two signal paths, one for normal operation, and the other for low consumption operation.

    Abstract translation: 本发明涉及一种低功耗TTL-CMOS输入缓冲器级(10),其包括串联连接在以TTL逻辑电路接收电信号的输入端(APAD)之间的反相器链(11,12,13,14) 电平和输出(ADD)以CMOS逻辑电平再现电信号,并且在第一或电源电压参考(Vcc)和第二或接地参考(GND)之间供电。 有利地,链中的第一反相器(11)包括根据用于低功耗操作模式的激活信号(LOWPOWER)选择到级(10)的传送路径的装置(15,MP2,MN2)。 实质上,缓冲器(10)的第一反相器(11)具有两个信号路径,一个用于正常操作,另一个用于低功耗操作。

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