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74F273PC Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # 74F273PC
Description  Octal D Flip-Flop
Download  8 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

74F273PC Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Connection Diagrams
Pin Assignment for
DIP SOIC and Flatpak
TLF9511 – 1
Pin Assignment
for LCC
TLF9511 – 2
Unit LoadingFan Out
54F74F
Pin Names
Description
UL
Input IIH IIL
HIGHLOW
Output IOH IOL
D0–D7
Data Inputs
1010
20 mA b06 mA
MR
Master Reset (Active LOW)
1010
20 mA b06 mA
CP
Clock Pulse Input (Active Rising Edge)
1010
20 mA b06 mA
Q0–Q7
Data Outputs
50333
b
1 mA20 mA
Mode Select-Function Table
Operating Mode
Inputs
Output
MR
CP
Dn
Qn
Reset (Clear)
L
X
X
L
Load ‘1’
H
L
hH
Load ‘0’
H
L
lL
H e HIGH Voltage Level steady state
h e HIGH Voltage Level one setup time prior to the LOW-to-HIGH clock
transition
L e LOW Voltage Level steady state
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
TLF9511 – 4
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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