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54F377DM Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54F377DM
Description  Octal D Flip-Flop with Clock Enable
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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54F377DM Datasheet(HTML) 2 Page - National Semiconductor (TI)

   
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Connection Diagrams
Pin Assignment for
DIP SOIC and Flatpak
TLF9525 – 2
Pin Assignment
for LCC
TLF9525 – 3
Unit LoadingFan Out
54F74F
Pin Names
Description
UL
Input IIH IIL
HIGHLOW
Output IOH IOL
D0–D7
Data Inputs
1010
20 mA b06 mA
CE
Clock Enable (Active LOW)
1010
20 mA b06 mA
CP
Clock Pulse Input
1010
20 mA b06 mA
Q0–Q7
Data Outputs
50333
b
1 mA20 mA
Mode Select-Function Table
Operating Mode
Inputs
Output
CP
CE
Dn
Qn
Load ‘‘1’’
L
Ih
H
Load ‘‘0’’
L
II
L
Hold
L
h
X
No Change
(Do Nothing)
X
H
X
No Change
H e HIGH Voltage Level
h e HIGH Voltage Level one setup time prior to
the LOW-to-HIGH Clock Transition
L e LOW Voltage Level
I e LOW Voltage Level one setup time prior to
the LOW-to-HIGH Clock Transition
X e Immaterial
L e LOW-to-HIGH Clock Transition
Logic Diagram
TLF9525 – 5
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays
2


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