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74LCX16646 Datasheet(PDF) 6 Page - Fairchild Semiconductor

Part No. 74LCX16646
Description  Low Voltage 16-Bit Transceiver/Register with 5V Tolerant Inputs and Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74LCX16646 Datasheet(HTML) 6 Page - Fairchild Semiconductor

 
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6
DC Electrical Characteristics (Continued)
Note 6: Outputs disabled or 3-STATE only.
AC Electrical Characteristics
Note 7: 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
Capacitance
Symbol
Parameter
Conditions
VCC
TA = −40°C to +85°C
Units
(V)
Min
Max
ICC
Quiescent Supply Current
VI = VCC or GND
2.3
− 3.6
20
µA
3.6V
≤ V
I, VO ≤ 5.5V (Note 6)
2.3
− 3.6
±20
∆I
CC
Increase in ICC per Input
VIH = VCC −0.6V
2.3
− 3.6
500
µA
Symbol
Parameter
TA = −40°C to +85°C, RL = 500Ω
Units
VCC = 3.3V ± 0.3V
VCC = 2.7V
VCC = 2.5V ± 0.2V
CL = 50 pF
CL = 50 pF
CL = 30 pF
Min
Max
Min
Max
Min
Max
fMAX
Maximum Clock Frequency
170
ns
tPHL
Propagation Delay
1.5
5.2
1.5
6.0
1.5
6.2
ns
tPLH
Bus to Bus
1.5
5.2
1.5
6.0
1.5
6.2
tPHL
Propagation Delay
1.5
6.0
1.5
7.0
1.5
7.2
ns
tPLH
Clock to Bus
1.5
6.0
1.5
7.0
1.5
7.2
tPHL
Propagation Delay
1.5
6.0
1.5
7.0
1.5
7.2
ns
tPLH
Select to Bus
1.5
6.0
1.5
7.0
1.5
7.2
tPZL
Output Enable Time
1.5
7.5
1.5
8.5
1.5
9.8
ns
tPZH
1.5
7.5
1.5
8.5
1.5
9.8
tPLZ
Output Disable Time
1.5
6.5
1.5
7.5
1.5
7.8
ns
tPHZ
1.5
6.5
1.5
7.5
1.5
7.8
tS
Setup Time
2.5
2.5
3.0
ns
tH
Hold Time
1.5
1.5
2.0
ns
tW
Pulse Width
3.0
3.0
3.5
ns
tOSHL
Output to Output Skew (Note 7)
1.0
ns
tOSLH
1.0
Symbol
Parameter
Conditions
VCC
TA = 25°C
Units
(V)
Typical
VOLP
Quiet Output Dynamic Peak VOL
CL = 50 pF, VIH = 3.3V, VIL = 0V
3.3
0.8
V
CL = 30 pF, VIH = 2.5V, VIL = 0V
2.5
0.6
VOLV
Quiet Output Dynamic Valley VOL
CL = 50 pF, VIH = 3.3V, VIL = 0V
3.3
−0.8
V
CL = 30 pF, VIH = 2.5V, VIL = 0V
2.5
−0.6
Symbol
Parameter
Conditions
Typical
Units
CIN
Input Capacitance
VCC = Open, VI = 0V or VCC
7
pF
CI/O
Input/Output Capacitance
VCC = 3.3V, VI = 0V or VCC
8
pF
CPD
Power Dissipation Capacitance
VCC = 3.3V, VI = 0V or VCC, F = 10 MHz
20
pF


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