Datasheet

SN54AHC595, SN74AHC595
SCLS373J –MAY 1996–REVISED JULY 2013 www.ti.com
FUNCTION TABLE
INPUTS
FUNCTION
SER SRCLK SRCLR RCLK OE
X X X X H Outputs Q
A
−Q
H
are disabled.
X X X X L Outputs Q
A
−Q
H
are enabled.
X X L X X Shift register is cleared.
First stage of the shift register goes low.
L ↑ H X X
Other stages store the data of previous stage, respectively.
X First stage of the shift register goes high.
H ↑ H X X
Other stages store the data of previous stage, respectively.
X X X ↑ X Shift-register data is stored into the storage register.
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