IDT54FCT521SOB Ver la hoja de datos (PDF) - Integrated Device Technology
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IDT54FCT521SOB Datasheet PDF : 6 Pages
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®
Integrated Device Technology, Inc.
FAST CMOS 8-BIT
IDENTITY COMPARATOR
IDT54/74FCT521
IDT54/74FCT521A
IDT54/74FCT521B
IDT54/74FCT521C
FEATURES:
• IDT54/74FCT521 equivalent to FASTTM speed
• IDT54/74FCT521A 35% faster than FAST
• IDT54/74FCT521B 50% faster than FAST
• IDT54/74FCT521C 60% faster than FAST
• Equivalent to FAST output drive over full temperature
and voltage supply extremes
• IOL = 48mA (commercial), and 32mA (military)
• CMOS power levels (1mW typ. static)
• TTL input and output level compatible
• CMOS output level compatible
• Substantially lower input current levels than FAST
(5µA max.)
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• JEDEC standard pinout for DIP and LCC
• Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT54/74FCT521/A/B/C are 8-bit identity comparators
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 IA = B also serves as an active LOW
enable input.
FUNCTIONAL BLOCK DIAGRAM
A0
B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
IA=B
PIN CONFIGURATIONS
OA=B
IA=B
A0
B0
A1
B1
A2
B2
A3
B3
GND
1
20
2
19
3
18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
&
7 E20-1 14
8
13
9
12
10
11
VCC
OA=B
B7
A7
B6
A6
B5
A5
B4
A4
DIP/SOIC/CERPACK
TOP VIEW
2604 drw 01
INDEX
2604 drw 03
3 2 20 19
A1
4
1
18 B7
B1
5
17 A7
A2
6
L20-2
16 B6
B2
7
15 A6
A3
8
14 B5
9 10 11 12 13
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1992 Integrated Device Technology, Inc.
7.16
LCC
TOP VIEW
2604 drw 02
MAY 1992
DSC-4617/2
1
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