Semiconductor integrated circuit with plural use of a terminal
    1.
    发明授权
    Semiconductor integrated circuit with plural use of a terminal 失效
    具有多个使用终端的半导体集成电路

    公开(公告)号:US5467028A

    公开(公告)日:1995-11-14

    申请号:US337423

    申请日:1994-11-08

    CPC分类号: H03K3/014 H03K3/03 H03K3/0307

    摘要: A semiconductor integrated circuit includes an oscillator circuit, which amplifies a signal sent from an oscillator by an amplifier circuit operating with a low power supply voltage for outputting the same. In the oscillator circuit, a threshold voltage of a transfer gate forming a switching element is set to a value lower than a threshold voltage of other transistors so as to reduce an on-resistance of the transfer gate and hence to ensure output of a signal supplied from said oscillator.

    摘要翻译: 半导体集成电路包括振荡器电路,该振荡器电路通过以低电源电压工作的放大器电路来放大从振荡器发送的信号,用于输出。 在振荡电路中,形成开关元件的传输栅极的阈值电压被设定为低于其他晶体管的阈值电压的值,以便减小传输栅极的导通电阻,从而确保所提供的信号的输出 来自所述振荡器。

    Microcomputer including system for controlling and maintaining the electric potential of an input terminal to improve interrupt response time
    2.
    发明授权
    Microcomputer including system for controlling and maintaining the electric potential of an input terminal to improve interrupt response time 失效
    微机包括用于控制和维持输入端电位的系统,以提高中断响应时间

    公开(公告)号:US06631475B1

    公开(公告)日:2003-10-07

    申请号:US09631987

    申请日:2000-08-03

    IPC分类号: G06F130

    CPC分类号: G06F13/4072 G06F13/24

    摘要: A microcomputer has an electric potential control unit, a signal generation unit, and a timing signal generation circuit. The electric potential control unit includes a transistor which controls an electric potential of an input terminal which is energized by a power supply. The signal generation unit includes an input buffer circuit which receives a change in the electric potential of the input terminal and supplies an interrupt signal to a CPU. The timing signal generation circuit generates a timing signal which controls conductivity of a transistor and operates the transistor intermittently. A capacitor is connected to the input terminal.

    摘要翻译: 微型计算机具有电位控制单元,信号生成单元和定时信号生成电路。 电位控制单元包括控制由电源供电的输入端子的电位的晶体管。 信号产生单元包括输入缓冲电路,其接收输入端的电位变化并将中​​断信号提供给CPU。 定时信号产生电路产生控制晶体管的导电性并间歇地操作晶体管的定时信号。 电容器连接到输入端子。