This makes it possible to package a 12-bit serial ADC or DAC in an 8-pin DIP or SO package. Mostly this is due to the fact that the limiting factor for parallel connections is the capability to synchronize the signals over the various lines, while serial protocols haven't this problem. From a space saving point of view, serial converters offer a clear advantage because of reduced device pin-count. As Kevin said, serial connections are getting faster and faster, and serial protocols like PCIe and SATA have taken the place of parallel BUSs. It is customary to tie the RESET control signals together so that a single command logic performs this function simultaneously on all stages. The key difference between serial and parallel data converters lies in the number of interface lines required.
Rising edge triggered device, and the data at its input transfers to the output only on the rising edge of the clock pulse. Data communications from a USB port or a SATA hard disk drive are in serial, and there is usually a controller IC that converts this data into parallel before sending to the microprocessor. Shift registers are widely in use in modern digital electronics. Serial-to-Parallel Conversion If an application requires a parallel interface to read the converter data, then the A/D can be configured in the SSC serial port mode and directly interfaced to serial-to-parallel registers. ya input is fixed length of 16 bit but this parallel to serial converter. A 4-bit serial-to-parallel shift register is one of the simplest types of circuits utilising four D-type flip-flops. It does something completely different than a loop in C. A serial to parallel converter is a digital circuit where we feed the input data serially, and read the outputs in parallel fashion.