PHILIPS 74HC/HCT595 8-bit serial-in/serial or parallel-out shift register with output latches; 3-state handbook
Datasheet
This document describes the features of the 74HC/HCT595 integrated circuit, including 8-bit serial input, 8-bit serial or parallel output, storage register with 3-state outputs, shift register with direct clear, and a shift out frequency of 100 MHz (typ).