74vcx2245 Fairchild Semiconductor, 74vcx2245 Datasheet - Page 5

• Manufacturer Part Number: 74vcx2245
• Description: 74vcx2245 Low Voltage Bidirectional Transceiver With 3.6v Tolerant Inputs And Outputs And 26w Series Resistors In B Outputs
• Manufacturer: Fairchild Semiconductor

t
t
t
t
t
t
t
t
t
t
t
t
t
t
PHL
PLH
PZL
PZH
PLZ
PHZ
OSHL
OSLH
PHL
PLH
PZL
PZH
PLZ
PHZ
AC Electrical Characteristics
Note 8: For C
Note 9: 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 (t
Symbol
Propagation Delay
B
Output Enable Time
B
Output Disable Time
B
Output to Output Skew
(Note 9)
Propagation Delay
A
Output Enable Time
A
Output Disable Time
A
L
n
n
n
n
n
n
to A
to A
to A
to B
to B
to B
50 pF, add approximately 300 ps to the AC maximum specification.
n
n
n
n
n
n
Parameter
C
C
C
C
C
C
C
C
C
C
C
C
C
C
L
L
L
L
L
L
L
L
L
L
L
L
L
L
30 pF, R
15 pF, R
30 pF, R
15 pF, R
30 pF, R
15 pF, R
30 pF, R
15 pF, R
30 pF, R
15 pF, R
30 pF, R
15 pF, R
30 pF, R
15 pF, R
(Note 8)
Conditions
L
L
L
L
L
L
L
L
L
L
L
L
L
L
500
2k
500
2k
500
2k
500
2k
500
2k
500
2k
500
2k
:
:
:
:
:
:
:
:
:
:
:
:
:
:
5
OSHL
1.8
1.8
1.8
1.8
1.8
1.8
1.8
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
) or LOW-to-HIGH (t
V
(V)
r
r
r
r
r
r
r
CC
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.3
0.2
0.1
0.3
0.2
0.1
0.3
0.2
0.1
0.3
0.2
0.1
0.3
0.2
0.1
0.3
0.2
0.1
0.3
0.2
0.1
T
A
Min
0.6
0.8
1.5
1.0
0.6
0.8
1.5
1.0
0.6
0.8
1.5
1.0
0.6
0.8
1.5
1.0
0.6
0.8
1.5
1.0
0.6
0.8
1.5
1.0

40
OSLH
q
C to
).

Max
16.8
19.6
14.4
0.75
19.6
19.6
16.9
3.5
4.2
8.4
4.5
5.6
9.8
3.6
4.0
7.2
0.5
0.5
1.5
4.4
5.6
9.8
5.0
6.6
9.8
4.2
4.7
8.5
85
q
C
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Units
ns
ns
ns
ns
ns
ns
ns
Number
Figures
Figures
Figures
Figures
Figures
Figures
Figures
Figures
Figures
Figures
Figures
Figures
Figure
1, 3, 4
5, 7, 8
1, 3, 4
5, 7, 8
1, 3, 4
5, 7, 8
1, 3, 4
5, 7, 8
1, 2
5, 6
1, 2
5, 6