SN74LS594 - Serial-in shift registers with output latches

These devices each contain an 8-bit D-type sorage register. The storage register has buffered ('LS594) or open-collector ('LS599) outputs. Separate clocks and direct-overriding clears are provided on both the shift and storage registers. A shift output (Q_H') is provided for cascading purposes.

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

• 8-Bit Serial-In, Parallel-Out Shift Registers with Storage
• Choice of Output Configurations:
  'LS594 . . . Buffered
  'LS599 . . . Open-Collector
• Guaranteed Shift Frequeny:
  DC to 20 MHz
• Independent Direct-Overriding Clears on Shift and Storage Registers