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    PC7071

    Abstract: uPC7071 uPD9901
    Text: SEC NEC Electronics Inc. Description The^PC7071L and^PC7072L are subscriber line inter­ face circuits SLICs LSIs for both PABX and central office. They provide battery feed to the subscriber line (B) and supervision (S) of the subscriber line (BSSLIC).


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    uPC7071L/72L PC7071L PC7072L //PD9901 /iPD9901 /JPC7071L) pPC7072L) PC7071L) /JPC7071L /PC7072L PC7071 uPC7071 uPD9901 PDF

    uPD9901

    Abstract: 9901l
    Text: SEC NEC Electronics Inc. Description The //PD9901L is a digital CODEC subscriber line inter­ face c ircu it SLIC LSI fo r both PABX and central office. It is used to provide three functions: 2-wire/4-wlre hybrid interfacing, coder-decoder, and supervision.


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    uPD9901L /PC7071L/7072L) JUPD9901L 7071U7072L) 7071L/7072L) 9901L 28-pin PD9901L uPD9901 9901l PDF

    upc7072

    Abstract: uPC7071L
    Text: SEC NEC Electronics Inc. Description PC7071L/72L Bipolar, Analog Subscriber Line Interface Circuit n Ground-key detection and ground-fault protection with /iPD9901L The /PC7071L and pPC7072L are subscriber line inter­ face circuits (SLICs) LSIs for both PABX and central


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    uPC7071L uPC7072L /iPC7071L pPC7072L /PD9901 /iPD9901L) /uPC7071 /JPC7072L) fjPC7071L) /PC7071L upc7072 PDF