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74HC595 - 8 bits shift register - serial to parallel output

8 bits shift register, serial to parallel conversion

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74HC595 : 8 bits shift register (serial to parallel)

The 74HC595 is mostly known by Arduino users because it allows to quickly adds outputs to microcontroler. The 74HC595 can also be used with MicroPython. This IC can be controled from 3 MCU pins:

  • The DATA will recieve the output states (one bit at the time).
  • The CLOCK will be used to push the DATA bit inside the internal registers (one clock cycle per bit).
  • The LATCH is used to set the outputs with the internal registers values .

If you had an ARDX kit then you have a dedicated tutorial on the 74HC595 otherwise the Arduino web site do have a great documentation about it (also including the daisy chain assembly).

Technical details

  • Pins: 16
  • Package: DIP16
  • Output current: 25mA (Source or Sink)
  • Max power dissipation
  • 74HC595 datasheet