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74LVTH273 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. 74LVTH273
Description  Low Voltage Octal D-Type Flip-Flop with Clear
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74LVTH273 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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Connection Diagram
Pin Descriptions
Truth Table
H
HIGH Voltage Level
L
LOW Voltage Level
X
Immaterial
 LOW-to-HIGH Transition
Oo Previous Oo before HIGH-to-LOW of CP
Functional Description
The LVTH273 consists of eight positive-edge-triggered flip-flops with individual D-type inputs. The buffered Clock and Clear
are common to all flip-flops. The eight flip-flops will store the state of their individual D-type inputs that meet the setup and
hold time requirements on the LOW-to-HIGH Clock (CP) transition. When the Clock is either HIGH or LOW, the D-input sig-
nal has no effect at the output. When the Clear (CLR) is LOW, all Outputs will be forced LOW.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Pin Names
Description
D0–D7
Data Inputs
CP
Clock Pulse Input
CLR
Clear
O0–O7
Outputs
Inputs
Outputs
Dn
CP
CLR
On
H

HH
L

HL
XH or L
H
Oo
XX
L
L


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