SYNCHRONOUS TO ASYNCHRONOUS CONVERTER SAC CMOS

DESCRIPTION

The MAS7838 is a single chip duplex synchronous to asynchronous converter. It converts asynchronous start stop characters to synchronous character format, with stop bit deletion when required as defined in the CCITT recommendation V.14 (V.22). On the receiver channel the MAS7838 converts the incoming synchronous data to asynchronous start stop character format with stop bit insertion when required as defined in the CCITT recommendation V.14 (V.22).The MAS7838 implements the data modes for the synchronous interface as specified in the V.14 (V.22). The device can be configured to operate at any frequency to maximum device speed within the above mentioned modes. 



FEATURES

• Implements CCITT recommendations V.14 and V.22 chapters 4.1, 4.2 and 4.3

• Operates in modes as defined in the CCITT recommendations V.22 (i), ii), iii), iv) and v)

• Transmission rate up to 64 kbit/s

• CMOS compatible interface

• Low power consumption (typically 25 mW)

• No additional circuitry required to perform the conversion

• CMOS device

• Single =5V supply



APPLICATION

• Adapts asynchronous terminals to synchronous modems

• Full or half card PC modems using UART as a data source

• Simplifying data multiplexing in a MUX/DEMUX system