IDT54FCT240 查看數據表（PDF） - Integrated Device Technology
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IDT54FCT240 Datasheet PDF : 8 Pages
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IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
FUNCTION TABLE
Pin Names
Description
OEA, OEB
3–State Output Enable Inputs (Active LOW)
Inputs(1)
OEA OEB OEB(2) D
OEB(1)
3–State Output Enable Input (Active HIGH)
L
L
H
L
Dxx
Inputs
L
L
H
H
Oxx
Outputs
NOTE:
1. OEB for 241 only.
H
H
L
X
2606 tbl 04
NOTES:
1. H = High Voltage Level
X = Don’t Care
L = Low Voltage Level
Z = High Impedance
2. OEB for 241 only.
Outputs(1)
240 241 244 540 541
HL LH L
LHH LH
ZZZZZ
2606 tbl 05
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 to VCC V
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
120
120
mA
Current
NOTES:
2606 tbl 01
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS 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:
2606 tbl 02
1. This parameter is measured at characterization but not tested.
7.8
3
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