



SCLS040C - DECEMBER 1982 - REVISED FEBRUARY 1998
The 'HC594 devices contain an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks and direct overriding clear (RCLR\, SRCLR\) inputs are provided on both the shift and storage registers. A serial (QH´) output is provided for cascading purposes.
Both the shift register (RCLK) and storage register (SRCLK) clocks are positive edge triggered. If both clocks are connected together, the shift register is always one count pulse ahead of the storage register.
The parallel (QA-QH) outputs have high-current capability. QH´ is a standard output.
The SN54HC594 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74HC594 is characterized for operation from -40°C to 85°C.
View more information about generic part numbers:SN74HC594
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