74vcxh245 Fairchild Semiconductor, 74vcxh245 Datasheet - Page 5

• Manufacturer Part Number: 74vcxh245
• Description: 74vcxh245 Low Voltage Bidirectional Transceiver With Bushold
• Manufacturer: Fairchild Semiconductor

V
V
V
t
t
t
t
t
t
t
t
C
C
C
AC Electrical Characteristics
PHL
PLH
PZL
PZH
PLZ
PHZ
OSHL
OSLH
Note 6: For C
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 (t
Dynamic Switching Characteristics
Capacitance
OLP
OLV
OHV
Symbol
IN
I/O
PD
Symbol
Symbol
,
,
,
Quiet Output Dynamic Peak V
Quiet Output Dynamic Valley V
Quiet Output Dynamic Valley V
Propagation Delay
A
Output Enable Time
Output Disable Time
Output to Output Skew
(Note 7)
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
L
n
to B
50 pF, add approximately 300 ps to the AC maximum specification.
n
or B
Parameter
n
to A
Parameter
n
Parameter
OL
OL
OH
C
C
C
C
C
C
C
C
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
(Note 6)
Conditions
C
C
C
L
L
L
L
L
L
L
L
L
L
L
500
2k
500
2k
500
2k
500
2k
30 pF, V
30 pF, V
30 pF, V
V
V
V
I
I
I
:
:
:
:
:
:
:
:
0V or V
0V or V
0V or V
5
IH
IH
IH
Conditions
CC
CC
CC
V
V
V
CC
CC
CC
, V
, V
, f
, V
, V
, V
OSHL
CC
CC
1.8
1.8
1.8
1.8
IL
10 MHz, V
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
IL
IL
Conditions
) or LOW-to-HIGH (t
V
(V)
1.2
1.2
1.2
1.2
1.8V, 2.5V or 3.3V
1.8V, 2.5V or 3.3V
r
r
r
r
0V
CC
r
r
r
r
r
r
r
r
r
r
r
r
0V
0V
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
CC
T
A
1.8V, 2.5V or 3.3V
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

40
OSLH
q
C to
).
V
(V)
1.8
2.5
3.3
1.8
2.5
3.3
1.8
2.5
3.3
CC

Max
16.8
42.0
19.6
49.0
14.4
36.0
0.75
8.4
9.8
7.2
3.5
4.2
4.5
5.6
3.6
4.0
0.5
0.5
1.5
1.5
85
q
C
www.fairchildsemi.com
T
T
A
Typical
Typical
A



0.3
0.7
1.0
1.3
1.7
2.0
20
0.3
0.7
1.0

6
7
Units
25
25
ns
ns
ns
ns
q
q
C
C
Number
Units
Units
Figures
Figures
Figures
Figures
Figures
Figures
Figure
1, 3, 4
5, 7, 8
1, 3, 4
5, 7, 8
pF
pF
pF
V
V
V
1, 2
5, 6