AC Electrical Characteristics
Symbol
Parameter
Conditions
VCC
TA = −40°C to +85°C
Figure
Units
(V)
Min
Max
Number
fMAX
Maximum Clock Frequency
CL = 30 pF
3.3 ± 0.3
250
2.5 ± 0.2
200
1.8 ± 0.15
100
MHz
tPHL
Propagation Delay
tPLH
A to B or B to A
CL = 15 pF
CL = 30 pF, RL = 500Ω
1.5 ± 0.1
80.0
3.3 ± 0.3
0.6
3.8
2.5 ± 0.2
0.8
4.6
Figures
1, 2
1.8 ± 0.15
1.5
9.2
ns
CL = 15 pF, RL = 2kΩ
1.5 ± 0.1
1.0
18.4
Figures
7, 8
tPHL
Propagation Delay
tPLH
Clock to A or B
CL = 30 pF, RL = 500Ω
3.3 ± 0.3
0.6
4.4
2.5 ± 0.2
0.8
5.5
Figures
1, 2
1.8 ± 0.15
1.5
9.8
ns
CL = 15 pF, RL = 500Ω
1.5 ± 0.1
1.0
19.6
Figures
7, 8
tPHL
Propagation Delay
tPLH
LEBA or LEAB to A or B
CL = 30 pF, RL = 500Ω
3.3 ± 0.3
0.6
4.4
2.5 ± 0.2
0.8
5.8
Figures
1, 2
1.8 ± 0.15
1.5
9.8
ns
CL = 15 pF, RL = 500Ω
1.5 ± 0.1
1.0
19.6
Figures
7, 8
tPZL
Output Enable Time
tPZH
OEBA or OEAB to A or B
CL = 30 pF, RL = 500Ω
3.3 ± 0.3
0.6
4.3
2.5 ± 0.2
0.8
5.9
Figures
1, 3, 4
1.8 ± 0.15
1.5
9.8
ns
CL = 15 pF, RL = 2kΩ
1.5 ± 0.1
1.0
19.6
Figures
7, 9, 10
tPLZ
Output Disable Time
tPHZ
OEBA or OEAB to A or B
CL = 30 pF, RL = 500Ω
3.3 ± 0.3
0.6
4.3
2.5 ± 0.2
0.8
4.9
Figures
1, 3, 4
1.8 ± 0.15
1.5
8.8
ns
CL = 15 pF, RL = 2kΩ
1.5 ± 0.1
1.0
17.6
Figures
7, 9, 10
tS
Setup Time
CL = 30 pF, RL = 500Ω
3.3 ± 0.3
1.5
2.5 ± 0.2
1.5
1.8 ± 0.15
2.5
ns Figure 6
tH
Hold Time
CL = 15 pF, RL = 500Ω
CL = 30 pF, RL = 500Ω
1.5 ± 0.1
3.0
3.3 ± 0.3
1.0
2.5 ± 0.2
1.0
1.8 ± 0.15
1.0
ns Figure 6
tW
Pulse Width
CL = 15 pF, RL = 500Ω
CL = 30 pF, RL = 500Ω
1.5 ± 0.1
2.0
3.3 ± 0.3
1.5
2.5 ± 0.2
1.5
1.8 ± 0.15
4.0
ns Figure 5
tOSHL
tOSLH
Output to Output Skew
(Note 10)
CL = 15 pF, RL = 500Ω
CL = 30 pF, RL = 500Ω
1.5 ± 0.1
4.0
3.3 ± 0.3
0.5
2.5 ± 0.2
1.8 ± 0.15
0.5
ns
0.75
CL = 15 pF, RL = 2kΩ
1.5 ± 0.1
1.5
Note 9: For CL = 50 pF, add approximately 300 ps to the AC maximum specification.
Note 10: 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).
5
www.fairchildsemi.com