鈮?/div>
1碌A(chǔ) (max.)
CMOS power levels
True TTL input and output compatibility:
鈥?V
OH
= 3.3V (typ.)
鈥?V
OL
= 0.3V (typ.)
High Drive outputs (-15mA I
OH
, 48mA I
OL
)
Meets or exceeds JEDEC standard 18 specifications
Military product compliant to MIL-STD-883, Class B and DESC
listed (dual marked)
Power off disable outputs permit "live insertion"
Available in the following packages:
鈥?Industrial: SOIC, SSOP, QSOP
鈥?Military: CERDIP, LCC
DESCRIPTION:
The IDT54/74FCT521T is an 8-bit identity comparator built using an
advanced dual metal CMOS technology. These devices compare two
words of up to eight bits each and provide a low output when the two words
match bit for bit. The expansion input
I
A
=
B
also serves as an active low
enable input.
FUNCTIONAL BLOCK DIAGRAM
A
0
B
0
A
1
B
1
A
2
B
2
A
3
B
3
2
3
4
5
6
7
8
9
19
A
4 11
B
4 12
A
5
B
5
A
6
B
6
A
7
B
7
I
A=B
13
14
15
16
17
18
1
O
A=B
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
1
JUNE 2002
DSC-2572/9
漏 2002 Integrated Device Technology, Inc.