SN74LS595 Datasheet PDF - TI

These devices each 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 ("LS595) or open-collector ("LS596) 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 pins for cascading.

●Both the shift register and storage register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the shift register state will always be one clock pulse ahead of the storage register.

● 8-Bit Serial-In, Parallel-Out Shift Registers with Storage

● Choice of 3-State ("LS595) or Open-Collector ("LS596) Parallel Outputs

● Shift Register Has Direct Clear

● Accurate Shift Frequency:DC to 20 MHz