MC74LCX646 查看數據表（PDF） - ON Semiconductor
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MC74LCX646 Datasheet PDF : 10 Pages
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MC74LCX646
DC ELECTRICAL CHARACTERISTICS (Continued)
TA = −40°C to +85°C
Symbol
Characteristic
Condition
Min
Max
Unit
II
Input Leakage Current
IOZ
3−State Output Current
IOFF
Power−Off Leakage Current
ICC
Quiescent Supply Current
ΔICC
Increase in ICC per Input
2.7 V ≤ VCC ≤ 3.6 V; 0 V ≤ VI ≤ 5.5 V
2.7 ≤ VCC ≤ 3.6 V; 0 V ≤ VO ≤ 5.5 V;
VI = VIH or V IL
VCC = 0 V; VI or VO = 5.5 V
2.7 ≤ VCC ≤ 3.6 V; VI = GND or VCC
2.7 ≤ VCC ≤ 3.6 V; 3.6 ≤ VI or VO ≤ 5.5 V
2.7 ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V
±5.0
μA
±5.0
μA
10
μA
10
μA
±10
μA
500
μA
AC CHARACTERISTICS (tR = tF = 2.5 ns; CL = 50 pF; RL = 500 Ω)
Limits
Symbol
Parameter
Waveform
TA = −40°C to +85°C
VCC = 3.0 V to 3.6 V
VCC = 2.7 V
Min
Max
Min
Max
Unit
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Clock Pulse Frequency
Propagation Delay
Input to Output
Propagation Delay
Clock to Output
Propagation Delay
Select to Output
Output Enable Time to
High and Low Level
Output Disable Time From
High and Low Level
3
150
MHz
1
1.5
7.0
1.5
8.0
ns
1.5
7.0
1.5
8.0
3
1.5
8.5
1.5
9.5
ns
1.5
8.5
1.5
9.5
1
1.5
8.5
1.5
9.5
ns
1.5
8.5
1.5
9.5
2
1.5
8.5
1.5
9.5
ns
1.5
8.5
1.5
9.5
2
1.5
8.5
1.5
9.5
ns
1.5
8.5
1.5
9.5
ts
Setup Time, HIGH or LOW Data to Clock
3
2.5
2.5
ns
th
Hold Time, HIGH or LOW Data to Clock
3
1.5
1.5
ns
tw
Clock Pulse Width, HIGH or LOW
3
3.3
3.3
ns
tOSHL
tOSLH
Output−to−Output Skew
(Note 3.)
1.0
ns
1.0
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH−to−LOW (tOSHL) or LOW−to−HIGH (tOSLH); parameter
guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
Symbol
Characteristic
Condition
TA = +25°C
Min Typ Max Unit
VOLP
Dynamic LOW Peak Voltage (Note 4.) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
0.8
V
VOLV
Dynamic LOW Valley Voltage (Note 4.) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
0.8
V
4. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is
measured in the LOW state.
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