IDT54FCT245 查看數據表（PDF） - Integrated Device Technology
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IDT54FCT245 Datasheet PDF : 7 Pages
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IDT54/74FCT245/A/C, IDT54/74FCT640/A/C, IDT54/74FCT645/A/C
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V; VHC = VCC – 0.2V
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
IIH
Input HIGH Current
(Except I/O pins)
IIL
Input LOW Current
(Except I/O pins)
IIH
Input HIGH Current
(I/O pins only)
IIL
Input LOW Current
(I/O pins only)
Guaranteed Logic LOW Level
VCC = Max
VI = VCC
VI = 2.7V
VI = 0.5V
VI = GND
VCC = Max
VI = VCC
VI = 2.7V
VI = 0.5V
VI = GND
—
—
0.8
V
—
—
5
µA
—
—
5(4)
—
—
–5(4)
—
—
–5
—
—
15
µA
—
—
15(4)
—
—
–15(4)
—
—
–15
VIK
Clamp Diode Voltage
VCC = Min., IN = –18mA
IOS
Short Circuit Current
VCC = Max.(3), VO = GND
—
–0.7 –1.2 V
–60
–120
—
mA
VOH
Output HIGH Voltage
VCC = 3V, VIN = VLC or VHC, IOH = –32µA
VHC
VCC
—
V
VCC = Min.
IOH = –300µA
VHC
VCC
—
VIN = VIH or VIL
IOH = –12mA MIL.
2.4
4.3
—
IOH = –15mA COM’L. 2.4
4.3
—
VOL
Output LOW Voltage
VCC = 3V, VIN = VLC or VHC, IOL = 300µA
(Port A and Port B)
VCC = Min.
IOL = 300µA
—
GND
VLC
V
—
GND VLC(4)
VIN = VIH or VIL
IOL = 48mA MIL.
—
0.3
0.55
IOL = 64mA COM’L.
—
0.3
0.55
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 and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. This parameter is guaranteed but not tested.
2534 tbl 03
7.9
3
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