UM91210 microcomputer dialing integrated circuit diagram

Published:2011/5/5 8:33:00 Author:Nicole | Keyword: microcomputer, dialing | From:SeekIC

UM91210 is microcomputer dialing integrated circuit. It is used in all kinds of communication telephones. UM91210 integrated circuit contains pulse/double audio frequency compatible dialing, key switch singal encoding and decoding circuit and so on, the integrated circuit's pin function and data are shown in the excel 1-1.



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