CD74HC595_14 Datasheet, PDF (2/22 Pages) Texas Instruments – 8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS

CD74HC595
8ĆBIT SHIFT REGISTERS
WITH 3ĆSTATE OUTPUT REGISTERS
SCHS353 − JANUARY 2004
SER
X
X
X
INPUTS
SRCLK SRCLR
X
X
X
X
X
L
RCLK
X
X
X
L
↑
H
X
H
↑
H
X
X
X
X
↑
FUNCTION TABLE
FUNCTION
OE
H Outputs QA−QH are disabled.
L Outputs QA−QH are enabled.
X Shift register is cleared.
X
First stage of the shift register goes low.
Other stages store the data of previous stage, respectively.
X
First stage of the shift register goes high.
Other stages store the data of previous stage, respectively.
X Shift-register data is stored in the storage register.
2
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