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Part number
492100  12  Original New  TFK  
10000  2008  -  -  
492100  12  -  -  


Part information


TELEFUNKEN microelectronic's one chip telephone circuit, U 3750 BM, is BICMOS integrated circuit that performs all the speech and line interface functions required in an electronic telephone set, the tone ringer, the pulse and DTMF dialling with redial, a keyboard interface with the possibility to interface with an external microcontroller using the internal serial bus, and a power supply for peripherals.


D Adjustable dc slope characteristic D Adjustable automatic line length receiving and sending gain control (not used in DTMF) with the possibility

Part numberCircuit descriptionManufacture
U3750BMACPG3 Ic-sm-telephone CCT
U3750BM One Chip Telephone Circuit Temic Semiconductors (acquired by ATMEL Corporation)


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