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74VHC595 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. 74VHC595
Description  8-Bit Shift Register with Output Latches
Download  9 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74VHC595 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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2
Pin Descriptions
Truth Table
Timing Diagram
Pin Names
Description
SER
Serial Data Input
SCK
Shift Register Clock Input
(Active rising edge)
RCK
Storage Register Clock Input
(Active rising edge)
SCLR
Reset Input
G
3-STATE Output Enable Input
(Active LOW)
QA - QH
Parallel Data Outputs
Q’H
Serial Data Output
Inputs
Function
SER RCK SCK SCLR G
XX
X
X
H QA thru QH 3-STATE
XX
X
X
L QA thru QH outputs enabled
X
X
X
L
L Shift Register cleared
Q
H = 0
LX
H
L Shift Register clocked
QN = Qn-1, Q0 = SER = L
HX
H
L Shift Register clocked
QN = Qn-1, Q0 = SER = H
X
X
H
L Contents of Shift
Register transferred to
output latches


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