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54ACT564F View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54ACT564F Octal D-Type Flip-Flop with TRI-STATE® Outputs National-Semiconductor
National ->Texas Instruments National-Semiconductor
54ACT564F Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Connection Diagrams
Pin Assignment for DIP,
and Flatpak
DS100994-3
Pin Assignment
for LCC
DS100994-4
Functional Description
The’ACT564 consists of eight edge-triggered flip-flops with
individual D-type inputs and TRI-STATE complement out-
puts. 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) transi-
tion. With the Output Enable (OE) LOW, the complement of
the contents of the eight flip-flops are available at the out-
puts. When OE is HIGH, the outputs go to the high imped-
ance state. Operation of the OE input does not affect the
state of the flip-flops.
Function Table
Inputs Internal Outputs
OE CP D
Q
ON
H H L NC
Z
H H H NC
Z
H NL
L
Z
H NH
H
Z
L NL
L
H
L NH
H
L
L H L NC
NC
L H H NC
NC
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
N = LOW-to-HIGH Transition
NC = No Change
Function
Hold
Hold
Load
Load
Data Available
Data Available
No Change in Data
No Change in Data
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