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MC74HC589A View Datasheet(PDF) - ON Semiconductor
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MC74HC589A
8-Bit Serial or Parallel-Input/Serial-Output Shift Register with 3-State Output
ON Semiconductor
MC74HC589A Datasheet PDF : 14 Pages
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MC74HC589A
SHIFT CLOCK
SERIAL DATA
INPUT, S
A
OUTPUT
ENABLE
SERIAL SHIFT/
PARALLEL LOAD
LATCH CLOCK
AL
H
BL
L
L
L
L
L
CL
H
PARALLEL
D L
L
DATA
INPUTS
EL
H
FL
H
GL
L
L
L
L
L
L
H
L
H
L
L
HL
H
H
H
Q
H
ÉÉÉÉ
HIGH IMPEDANCE
HL H
H L H L HL H
LL L
H
SERIAL SHIFT
SERIAL SHIFT
SERIAL SHIFT
L HH
SERIAL
SHIFT
RESET LOAD
LATCH LATCH
AND
SHIFT
REGISTER
PARALLEL
LOAD
SHIFT
REGISTER
LOAD
LATCH
PARALLEL
LOAD
SHIFT
REGISTER
PARALLEL LOAD,
LATCH, AND
SHIFT REGISTER
Figure 12. Timing Diagram
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