74F521SJ Fairchild Semiconductor, 74F521SJ Datasheet - Page 2

• Manufacturer Part Number: 74F521SJ
• Description: IC COMPARATOR IDENTITY 8B 20SOP
• Manufacturer: Fairchild Semiconductor
• Series: 74Fr
• Type: Identity Comparatorr

Specifications of 74F521SJ

• Number Of Bits: 8
• Delay Time - Propagation: 7ns
• Current - Supply: 21mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (5.3mm Width), 20-SO, 20-SOEIAJ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Unit Loading/Fan Out
Truth Table
H
L
Note 1: A
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
HIGH Voltage Level
0
B
0
, A
1
B
1
, A
Pin Names
A
B
I
O
A B
0
0
A B
2
–A
–B
B
7
7
2
, etc.
I
A
Word A Inputs
Word B Inputs
Expansion or Enable Input (Active LOW)
Identity Output (Active LOW)
H
H
L
L
B
Inputs
Description
A
A
B (Note 1)
B (Note 1)
A
A
A, B
2
B
B
HIGH/LOW Output I
50/33.3
1.0/1.0
1.0/1.0
1.0/1.0
U.L.
Output
O
A
20 A/ 0.6 mA
20 A/ 0.6 mA
20 A/ 0.6 mA
H
H
H
L
Input I
1 mA/20 mA
B
IH
OH
/I
/I
IL
OL