parallel to serial converter circuit diagram

A stage consists of a type D Flip-Flop for storage, and an AND-OR selector to determine whether data will load in parallel, or shift stored data to the right. The controller needs a 4 MHz ceramic resonator, X1. Below we take a close look at the internal details of a 3-stage parallel-in/ serial-out shift register. If there is a delay on the Centronics port, the RS232 bitstream from the computer may be stopped via the Flow signal (pin 17). The IC also generates the requisite control signals. This two-step process is schematically illustrated in the accompanying figure. Once this is achieved, with the help of the clock, data is shifted one bit a a time from the last flip-flop. This is essentially a programmed PIC controller that produces a Centronics compatible signal from a 2400 baud serial signal (eight data bits, no parity, one stop bit). In this converter all parallel data is loaded (stored) simultaneously into the D-type flip-flops. The serial-to-parallel conversion is effected by IC1. integrated circuit, which converts continuous signals. This is an integrated level converter that transforms the single +5V supply into a symmetrical ☑2V one. serial-to-parallel converter nuosekliojo kodo keitiklis lygiagreiuoju kodu statusas T sritis. Since the computer needs real RS232 levels, an adaptation from TTL to RS232 is provided in the converter by a MAX232. This isnt an 'autonomous' circuit but should be used with other circuit, as a Micro-step driver or Unipolar step driver. The CTS and DSR signals enable handshaking to be implemented. In this page you will find the description of a serial to parallel converter designed to connect a large number of digital output to a PC parallel port. The TxD line, pin 3, CTS line, pin 8 and the DSR line, pin 6, of the serial port are used - see diagram.

It converts a serial 2400 baud signal into a parallel signal. This converter may help if just the serial port on a personal computer is free, whereas the printer needs a parallel (Centronics) port.

Parallel to serial converter circuit diagram