IDT54FCT521T データシートの表示（PDF） - Integrated Device Technology
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IDT54FCT521T Datasheet PDF : 5 Pages
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IDT54/74FCT521T/AT/BT/CT
FAST CMOS 8-BIT IDENTITY COMPARATOR
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
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)
FUNCTION TABLE(1)
Inputs
2572 tbl 01
Output
IA=B
A, B
OA=B
L
A = B*
L
A≠B
H
A = B*
H
A≠B
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
*A0 = B0, A1 = B1, A2 = B2, etc.
L
H
H
H
2572 tbl 02
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN
Input
Capacitance
VIN = 0V
6
10 pF
COUT Output
VOUT = 0V
8
12 pF
Capacitance
NOTE:
2572 lnk 04
1. This parameter is measured at characterization but not tested.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Commercial Military Unit
VTERM(2) Terminal Voltage –0.5 to +7.0 –0.5 to +7.0 V
with Respect to
GND
VTERM(3) Terminal Voltage
with Respect to
GND
–0.5 to
VCC +0.5
–0.5 to
V
VCC +0.5
TA
Operating
0 to +70 –55 to +125 °C
Temperature
TBIAS Temperature
–55 to +125 –65 to +135 °C
Under Bias
TSTG Storage
–55 to +125 –65 to +150 °C
Temperature
PT
Power Dissipation
0.5
0.5
W
IOUT
DC Output
–60 to +120 –60 to +120 mA
Current
NOTES:
2572 lnk 03
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.
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
II H
Input HIGH Current(4)
II L
Input LOW Current(4)
II
Input HIGH Current(4)
Guaranteed Logic LOW Level
VCC = Max.
VI = 2.7V
VCC = Max.
VI = 0.5V
VCC = Max., VI = VCC (Max.)
—
— 0.8
V
—
—
±1
µA
—
—
±1
µA
—
—
±1
µA
VIK
Clamp Diode Voltage
IOS
Short Circuit Current
VCC = Min., IN = –18mA
VCC = Max.(3), VO = GND
— –0.7 –1.2 V
–60 –120 –225 mA
VOH
Output HIGH Voltage
VOL
Output LOW Voltage
VH
Input Hysteresis
VCC = Min.
VIN = VIH or VIL
VCC = Min.
VIN = VIH or VIL
IOH = –6mA MIL.
2.4 3.3 —
V
IOH = –8mA COM'L.
IOH = –12mA MIL.
2.0 3.0 —
V
IOH = –15mA COM'L.
IOL = 32mA MIL.
— 0.3 0.5
V
IOL = 48mA COM'L.
—
— 200 — mV
ICC
Quiescent Power Supply Current VCC = Max.
— 0.01 1
VIN = GND or VCC
NOTES:
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.
mA
2572 tbl 05
6.16
2
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