J80-1A56-the communication single chip microcomputer circuit

Published:2011/7/13 20:58:00 Author:Borg | Keyword: communication single chip, microcomputer circuit | From:SeekIC

1.function introduction J80-1A56 contains the pulse/dual audio compatible dialing circuit, the call display signal process circuit of FSK/DTMF dual-system, wireless emitting and receiving signal control circuit, keypad switch encoding/decoding circuit, LCD display connector circuit, storage connector circuit, mute control circuit, indicator drive control circuit, receiving signal field force detection circuit, ringing detection and other control circuits, etc. 3.pin functions and dataJ80-1A56 is in 44-pin package, whose pin functions and data are listed in table 1-1.



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