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IDT74FCT521TQ Datasheet(PDF) 2 Page - Integrated Device Technology

Part # IDT74FCT521TQ
Description  FAST CMOS 8-BIT IDENTITY COMPARATOR
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT74FCT521TQ Datasheet(HTML) 2 Page - Integrated Device Technology

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MILITARY AND COMMERCIAL TEMPERATURE RANGES
IDT54/74FCT521T/AT/BT/CT
FAST CMOS 8-BIT IDENTITY COMPARATOR
6.16
2
PIN DESCRIPTION
2572 tbl 01
FUNCTION TABLE
(1)
NOTE:
2572 tbl 02
1. H = HIGH Voltage Level
L = LOW Voltage Level
*
A0 = B0, A1 = B1, A2 = B2, etc.
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
Commercial
Military
Unit
VTERM(2) Terminal Voltage
with Respect to
GND
–0.5 to +7.0
–0.5 to +7.0
V
VTERM(3) Terminal Voltage
with Respect to
GND
–0.5 to
VCC +0.5
–0.5 to
VCC +0.5
V
TA
Operating
Temperature
0 to +70
–55 to +125
°C
TBIAS
Temperature
Under Bias
–55 to +125
–65 to +135
°C
TSTG
Storage
Temperature
–55 to +125
–65 to +150
°C
PT
Power Dissipation
0.5
0.5
W
IOUT
DC Output
Current
–60 to +120
–60 to +120
mA
2572 lnk 03
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this specification is
not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability. No terminal voltage may exceed
VCC by +0.5V unless otherwise noted.
2. Input and VCC terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (TA = +25
°C, f = 1.0MHz)
Symbol
Parameter(1)
Conditions
Typ.
Max. Unit
CIN
Input
Capacitance
VIN = 0V
6
10
pF
COUT
Output
Capacitance
VOUT = 0V
8
12
pF
NOTE:
1. This parameter is measured at characterization but not tested.
2572 lnk 04
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = 0
°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10%
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2.0
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
0.8
V
II H
Input HIGH Current(4)
VCC = Max.
VI = 2.7V
±1
µA
II L
Input LOW Current(4)
VCC = Max.
VI = 0.5V
±1
µA
II
Input HIGH Current(4)
VCC = Max., VI = VCC (Max.)
±1
µA
VIK
Clamp Diode Voltage
VCC = Min., IN = –18mA
–0.7
–1.2
V
IOS
Short Circuit Current
VCC = Max.(3), VO = GND
–60
–120
–225
mA
VOH
Output HIGH Voltage
VCC = Min.
VIN = VIH or VIL
IOH = –6mA MIL.
IOH = –8mA COM'L.
2.4
3.3
V
IOH = –12mA MIL.
IOH = –15mA COM'L.
2.0
3.0
V
VOL
Output LOW Voltage
VCC = Min.
VIN = VIH or VIL
IOL = 32mA MIL.
IOL = 48mA COM'L.
0.3
0.5
V
VH
Input Hysteresis
200
mV
ICC
Quiescent Power Supply Current
VCC = Max.
VIN = GND or VCC
0.01
1
mA
NOTES:
2572 tbl 05
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25
°C ambient.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. The test limit for this parameter is
±5µA at TA = -55°C.
Pin Names
Description
A0 - A7
Word A Inputs
B0 - B7
Word B Inputs
IA = B
Expansion or Enable Input (Active LOW)
OA = B
Identity Output (Active LOW)
Inputs
Output
IIA=B
A, B
O
OA=B
L
L
H
H
A = B*
A
≠ B
A = B*
A
≠ B
L
H
H
H


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