74VHC595M Datasheet PDF - Fairchild

●The 74VHC595M is a 8-bit high-speed CMOS Shift Register with output latches. It is fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has eight 3-STATE outputs. Separate clocks are provided for both the shift register and the storage register. The shift register has a direct-overriding clear, serial input and serial output (standard) pins for cascading. Both the shift register and storage register use positive-edge triggered clocks. If both clocks are connected together, the shift register state will always be one clock pulse ahead of the storage register. An input protection circuit insures that 0 to 7V can be applied to the input pins without regard to the supply voltage.

● Power down protection is provided on all inputs

● High noise immunity

● Low power dissipation

● Pin and function compatible with 74HC595