The 74HC595 consists of an 8−bit shift register and an 8−bit D−type latch with three−state parallel outputs.
The shift register accepts serial data and provides a serial output.
The shift register also provides parallel data to the 8−bit latch.
The shift register and latch have independent clock inputs.
This device also has an asynchronous reset for the shift register
Package include:
20pcs*74HC595D