BU8872 Description
munication ICs DTMF receiver for telephones BU8872 / BU8872FS The BU8872 and BU8872FS are DTMF receiver ICs developed for use in telephone answering machines, and convert 16 different types of DTMF signals into 4-bit binary serial data. In addition to a pact 8-pin DIP (BU8872) or 16-pin SSOP (BU8872FS) package, these receivers.