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74ABT374 Fiches technique(PDF) 2 Page - Fairchild Semiconductor

No de pièce 74ABT374
Description  Octal D-Type Flip-Flop with 3-STATE Outputs
Download  11 Pages
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Fabricant  FAIRCHILD [Fairchild Semiconductor]
Site Internet  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74ABT374 Fiches technique(HTML) 2 Page - Fairchild Semiconductor

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Functional Description
The ABT374 consists of eight edge-triggered flip-flops with
individual D-type inputs and 3-STATE true outputs. The
buffered clock and buffered Output Enable are common to
all flip-flops. The eight flip-flops will store the state of their
individual D inputs that meet the setup and hold time
requirements on the LOW-to-HIGH Clock (CP) transition.
With the Output Enable (OE) LOW, the contents of the
eight flip-flops are available at the outputs. When OE is
HIGH, the outputs are in a high impedance state. Opera-
tion of the OE input does not affect the state of the flip-
flops.
Function Table
H
HIGH Voltage Level
L
LOW Voltage Level
X
Immaterial
Z
High Impedance
 LOW-to-HIGH Transition
NC
No Change
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.
Inputs
Internal
Outputs
Function
OE
CP
D
Q
O
H
H
L
NC
Z
Hold
H
H
H
NC
Z
Hold
H

L
L
Z
Load
H

H
H
Z
Load
L

L
L
L
Data Available
L

H
H
H
Data Available
L
H
L
NC
NC
No Change in Data
L
H
H
NC
NC
No Change in Data


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