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IDT54FCT623AT Datasheet PDF : 6 Pages
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IDT54/74FCT623T/AT/CT
FAST CMOS OCTAL BUS TRANSCEIVERS (3-STATE)
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
VIH
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Min. Typ.(2) Max. Unit
2.0 —
—
V
VIL
Input LOW Level
II H
Input HIGH Current(5)
II L
Input LOW Current(5)
II
Input HIGH Current(5)
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
VCC = Min.
IOH = –6mA MIL.
2.4 3.3 —
V
(A and B Bus)
VIN = VIH or VIL
IOH = –8mA COM'L.
IOH = –12mA MIL.
2.0 3.0 —
V
VOL
Output LOW Voltage (A Bus)
VCC = Min.
IOH = –15mA COM'L.
IOL = 32mA MIL.(4)
— 0.3 0.5
V
VIN = VIH or VIL
IOL = 48mA COM'L.
VOL
Output LOW Voltage (B Bus)
VCC = Min.
IOL = 48mA MIL.(4)
— 0.3 0.55 V
VIN = VIH or VIL
IOL = 64mA COM'L.
IOFF
Input/Output Power Off Leakage(6) VCC = 0V, VIN or VO ≤ 4.5V
—
—
±1 µA
VH
Input Hysteresis
—
— 200 — mV
ICC
Quiescent Power Supply Current VCC = Max., VIN = GND or VCC
— 0.01 1
µA
NOTES:
2563 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. These are maximum IOL values per output, for 8 outputs turned on simultaneously. Total maximum IOL (all outputs) is 512mA for commercial and 384mA
for military. Derate IOL for number of outputs exceeding 8 turned on simultaneously.
5. The test limit for this parameter is ±5µA at TA = –55°C.
6. This parameter is guaranteed but not tested.
6.19
3
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