TC74ACT14FN 查看數據表（PDF） - Toshiba
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TC74ACT14FN Datasheet PDF : 8 Pages
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Operating Ranges (Note)
TC74ACT14P/F/FN/FT
Characteristics
Symbol
Rating
Unit
Supply voltage
Input voltage
Output voltage
Operating temperature
VCC
VIN
VOUT
Topr
4.5 to 5.5
V
0 to VCC
V
0 to VCC
V
−40 to 85
°C
Note: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Electrical Characteristics
DC Characteristics
Characteristics
Positive threshold
voltage
Symbol
VP
Test Condition
―
Ta = 25°C
Ta =
−40 to 85°C
Unit
VCC
(V)
Min
Typ.
Max
Min
Max
4.5 ―
―
2.0
―
2.0
V
Negative threshold
voltage
VN
―
4.5 0.8
―
―
0.8
―
V
Hysteresis voltage
High-level output
voltage
Low-level output
voltage
Input leakage
current
VH
VOH
VOL
IIN
―
4.5 0.4
―
1.2 0.4 1.2
V
IOH = −50 μA
4.5 4.4 4.5
―
4.4
―
VIN
= VIL
IOH = −24 mA
4.5 3.94 ―
― 3.80 ―
V
IOH = −75 mA (Note) 5.5 ―
―
― 3.85 ―
IOL = 50 μA
4.5 ―
0.0 0.1
―
0.1
VIN
= VIH
IOL = 24 mA
4.5 ―
―
0.36 ―
0.44
V
IOL = 75 mA (Note) 5.5 ―
―
―
― 1.65
VIN = VCC or GND
5.5 ―
― ±0.1 ― ±1.0 μA
Quiescent supply
current
ICC
VIN = VCC or GND
Per input: VIN = 3.4 V
IC
Other input: VCC or GND
5.5 ―
5.5 ―
―
4.0
― 40.0 μA
― 1.35 ―
1.5 mA
Note:
This spec indicates the capability of driving 50 Ω transmission lines.
One output should be tested at a time for a 10 ms maximum duration.
AC Characteristics (CL = 50 pF, RL = 500 Ω, input: tr = tf = 3 ns)
Characteristics
Symbol
Test Condition
Ta = 25°C
Ta =
−40 to 85°C Unit
VCC (V) Min Typ. Max Min Max
Propagation delay
tpLH
time
tpHL
―
5.0 ± 0.5 ―
7.2 11.4 1.0 13.0 ns
Input capacitance
CIN
―
―
5
10
―
10
pF
Power dissipation
capacitance
CPD
(Note) ―
30
―
―
―
pF
Note:
CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
ICC (opr) = CPD·VCC·fIN + ICC/6 (per gate)
3
2007-10-01
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