74595 8-Bit Shift Register with 3-State Output Registers

The SNx4HC595 devices contain an 8-bit, serial-in parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3- state outputs. Separate clocks are provided for both the shift and storage register. The shift register has a direct overriding clear (SRCLR) input, serial (SER) input, and serial outputs for cascading. When the output-enable (OE) input is high, the outputs are in the high-impedance state.

74595 8-Bit Shift Register with 3-State Output Registers Datasheet