* All Digital
* Requires Few External Parts
* Low Power Drain: 1.5mW Typical From Single 4.5V To 6V Supply
* Time Constants Determined by Clock Frequency;.

* Voice Transmission Over Data Channels (Modems)
* Voice/Data Multiplexing (Pair Gain)
* Voice Encryption/Sc.

The HC-55564 is a half duplex modulator/demodulator CMOS intergrated circuit used to convert voice signals into serial NRZ digital data and to reconvert that data into voice. The conversion is by delta-modulation, using the Continuously Variable Slop.

HC9P5502B-5

HC9P5502B1-5

HC9P5504B-5

HC9P5504B-9

HC9P5509B3999-003

HC9P5524-5

HC9-100-R

HC9-1R0-R

HC9-1R5-R

HC9-220-R

HC9-2R2-R

HC9-330-R

HC9-3R3-R