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Integrated Device Technology - FAST CMOS 8-BIT IDENTITY COMPARATOR

Numéro de référence IDT54FCT521CTQ
Description FAST CMOS 8-BIT IDENTITY COMPARATOR
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT54FCT521CTQ fiche technique
Integrated Device Technology, Inc.
FAST CMOS 8-BIT
IDENTITY COMPARATOR
IDT54/74FCT521T
IDT54/74FCT521AT
IDT54/74FCT521BT
IDT54/74FCT521CT
FEATURES:
• Std., A, B and C speed grades
• Low input and output leakage 1µA (max.)
• CMOS power levels
• True TTL input and output compatibility
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
• High drive outputs (-15mA IOH, 48mA IOL)
• Meets or exceeds JEDEC standard 18 specifications
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
• Available in DIP, SOIC, SSOP, QSOP, CERPACK and
LCC packages
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The IDT54/74FCT521T/AT/BT/CT are 8-bit identity com-
parators built using an advanced dual metal CMOS technol-
ogy. 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.
PIN CONFIGURATIONS
IA=B
1
20 VCC
A0
A0 2
19 OA=B
B0 B0 3 P20-1 18 B7
A1
A1 4 D20-1 17
A7
B1 B1 5 SO20-2 16 B6
A2 6 SO20-7 15 A6
A2
B2
SO20-8
B2 7 & 14 B5
A3 8 E20-1 13
A5
A3
B3 9
12 B4
B3
GND 10
11 A4
A4
OA=B
DIP/SOIC/SSOP/QSOP/CERPACK
2572 drw 02
B4 TOP VIEW
A5
B5 INDEX
A6
B6
3 2 20 19
A7
A1 4
1 18 B7
B7
B1 5
17 A7
IA=B
2572 drw 01
A2 6
B2 7
L20-2
16 B6
15 A6
A3 8
14 B5
9 10 11 12 13
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1995 Integrated Device Technology, Inc.
6.16
LCC
TOP VIEW
2572 drw 03
APRIL 1995
DSC-4210/4
1

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