UM9151 microcomputer dialing integrated circuit diagram

Published:2011/5/6 22:52:00 Author:Nicole | Keyword: microcomputer, dialing | From:SeekIC

UM9151 is a microcomputer dialing integrated circuit, it is used in all kinds of telephone circuit of communication. UM9151 integrated circuit contains dialing singal process circuit, key switch singal compiling decoding circuit, silence control circuit and start-up circuit. This IC adopts 18-foot dual in-line package, the pin function and data of this integrated circuit is shown in the table 1-1.



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