參數(shù)資料
型號: 74LVX245SJX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Low Voltage Octal Bidirectional Transceiver
中文描述: LV/LV-A/LVX/H SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封裝: 5.30 MM, EIAJ TYPE2, SOP-20
文件頁數(shù): 3/6頁
文件大小: 130K
代理商: 74LVX245SJX
Noise Characteristics
Symbol
Parameter
V
CC
(V)
74LVX245
Units
Conditions
C
L
(pF)
T
A
e
25
§
C
Typ
Limit
V
OLP
Quiet Output Maximum Dynamic V
OL
3.3
0.5
0.8
V
50
V
OLV
Quiet Output Minimum Dynamic V
OL
3.3
b
0.5
b
0.8
V
50
V
IHD
Minimum High Level Dynamic Input Voltage
3.3
2.0
V
50
V
ILD
Maximum Low Level Dynamic Input Voltage
3.3
0.8
V
50
Note:
Input t
r
e
t
f
e
3 ns
AC Electrical Characteristics
Symbol
Parameter
V
CC
(V)
74LVX245
74LVX245
Units
Conditions
T
A
e a
25
§
C
T
A
e
b
40
§
C to
a
85
§
C
Min
Typ
Max
Min
Max
t
PLH
t
PHL
Propagation Delay Time
2.7
6.1
10.7
1.0
13.5
ns
C
L
e
15 pF
8.6
14.2
1.0
17.0
C
L
e
50 pF
3.3
g
0.3
4.7
6.8
1.0
8.0
C
L
e
15 pF
7.2
10.1
1.0
11.5
C
L
e
50 pF
t
PZL
t
PZH
TRI-STATE Output
Enable Time
2.7
9.0
16.9
1.0
20.5
ns
C
L
e
15 pF, R
L
e
1 k
X
11.5
20.4
1.0
24.0
C
L
e
50 pF, R
L
e
1 k
X
3.3
g
0.3
7.1
11.0
1.0
13.0
C
L
e
15 pF, R
L
e
1 k
X
9.6
14.5
1.0
16.5
C
L
e
50 pF, R
L
e
1 k
X
t
PLZ
t
PHZ
TRI-STATE Output
Disable Time
2.7
11.5
18.0
1.0
21.0
ns
C
L
e
50 pF, R
L
e
1 k
X
3.3
g
0.3
9.6
12.8
1.0
14.5
C
L
e
50 pF, R
L
e
1 k
X
t
OSLH
t
OSHL
Output to Output Skew
(Note 1)
2.7
1.5
1.5
ns
C
L
e
50 pF (Note 1)
Note 1:
Parameter guaranteed by design. t
OSLH
e
l
t
PLHm
b
t
PLHn
l
, t
OSHL
e
l
t
PHLm
b
t
PHLn
l
Capacitance
Symbol
Parameter
74LVX245
74LVX245
Units
T
A
e a
25
§
C
T
A
e
b
40
§
C to
a
85
§
C
Min
Typ
Max
Min
Max
C
IN
Input Capacitance T/R, OE
4
10
10
pF
C
I/O
Output Capacitance A
n
, B
n
8
pF
C
PD
Power Dissipation
Capacitance (Note 1)
21
pF
Note 1:
C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption
without load.
Average operating current can be obtained by the equation: I
CC(opr.)
e
C
PD
c
V
CC
c
f
IN
a
I
CC
8 (per bit)
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