74F273 Fairchild, 74F273 Datasheet - Page 2

• Manufacturer Part Number: 74F273
• Description: Octal D-Type Flip-Flop
• Manufacturer: Fairchild

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Unit Loading/Fan Out
Mode Select-Function Table
H
h
L
I

X
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.
LOW Voltage Level one setup time prior to the LOW-to-HIGH clock transition
HIGH Voltage Level one setup time prior to the LOW-to-HIGH clock transition
LOW Voltage Level steady state
HIGH Voltage Level steady state
Immaterial
LOW-to-HIGH clock transition
Pin Names
D
MR
CP
Q
0
0
Operating Mode
–D
–Q
Reset (Clear)
Load “1”
Load “0”
7
7
Data Inputs
Master Reset (Active LOW)
Clock Pulse Input (Active Rising Edge)
Data Outputs
Description
MR
H
H
L
2
Inputs
CP


X
HIGH/LOW
50/33.3
1.0/1.0
1.0/1.0
1.0/1.0
U.L.
D
X
h
l
n
Output I
20 A/ 0.6 mA
20 A/ 0.6 mA
20 A/ 0.6 mA
Input I
1 mA/20 mA
Output
Q
H
L
L
IH
OH
n
/I
/I
IL
OL