74F521SC Fairchild Semiconductor, 74F521SC Datasheet - Page 2
![IC COMPARATOR IDENTITY 8B 20SOIC](/photos/7/9/70975/74f521sc_sml.jpg)
74F521SC
Manufacturer Part Number
74F521SC
Description
IC COMPARATOR IDENTITY 8B 20SOIC
Manufacturer
Fairchild Semiconductor
Series
74Fr
Type
Identity Comparatorr
Datasheet
1.74F521SC.pdf
(8 pages)
Specifications of 74F521SC
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 (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
74F521SCX
Manufacturer:
NS/国半
Quantity:
20 000
www.fairchildsemi.com
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