74HCT594 데이터 시트보기 (PDF) - Diodes Incorporated.
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74HCT594 Datasheet PDF : 12 Pages
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Functional Description and Timing Diagram
74HCT594
SHR
L
X
H
H
H
Control
Input
STR
X
L
X
SHCP STCP DS
X
X
X
X
X
X
L H or L
H
X
X
H
H or L
H=HIGH voltage state
L=LOW voltage state
↑=LOW to HIGH transition
X= don’t care – high or low (not floating)
NC= No change
Output
Q7S
L
NC
Q6S
NC
Q6S
Qn
NC
L
NC
Qs
QnS
Function
Clear Shift Register
Clear Storage Register
Loads DS into shift register stage 0. All QS shifted
Contents of shift register moved to starge register all QS -> QN
Shift Register one pulse count ahead of storage register.
SHCP
DS
STCP
SHR
STR
Q0
Q1
Q6
Q7
Q7S
74HCT594
Document number: DS35491 Rev. 2 - 2
3 of 12
www.diodes.com
June 2013
© Diodes Incorporated
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