參數(shù)資料
型號: 74LCXR2245WM
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26з Series Resistors on Both A and B Ports
中文描述: LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封裝: 0.300 INCH, MS-013, SOIC-20
文件頁數(shù): 4/10頁
文件大?。?/td> 106K
代理商: 74LCXR2245WM
www.fairchildsemi.com
4
7
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 (t
OSHL
) or LOW-to-HIGH (t
OSLH
).
Dynamic Switching Characteristics
Capacitance
Symbol
Parameter
Conditions
V
CC
(V)
0
T
A
=
40
°
C to
+
85
°
C
Min
Units
Max
10
10
±
10
500
I
OFF
I
CC
Power-Off Leakage Current
Quiescent Supply Current
V
I
or V
O
=
5.5V
V
I
=
V
CC
or GND
3.6V
V
I
, V
O
5.5V (Note 6)
V
IH
=
V
CC
0.6V
μ
A
2.3
3.6
2.3
3.6
2.3 - 3.6
μ
A
I
CC
Increase in I
CC
per Input
μ
A
Symbol
Parameter
T
A
=
40
°
C to
+
85
°
C, R
L
=
500
V
CC
=
2.7V
C
L
=
50 pF
Min
1.5
Units
V
CC
=
3.3V
±
0.3V
C
L
=
50 pF
Min
1.5
V
CC
=
2.5V
±
0.2V
C
L
=
30 pF
Min
1.5
Max
8.0
Max
9.0
Max
9.6
t
PHL
t
PLH
t
PZL
t
PZH
t
PLZ
t
PHZ
t
OSHL
t
OSLH
Propagation Delay
ns
A
n
to B
n
or B
n
to A
n
Output Enable Time
1.5
1.5
1.5
8.0
9.5
9.5
1.5
1.5
1.5
9.0
10.5
10.5
1.5
1.5
1.5
9.6
11.0
11.0
ns
Output Disable Time
1.5
1.5
7.5
7.5
1.0
1.5
1.5
8.5
8.5
1.5
1.5
9.0
9.0
ns
Output to Output Skew
ns
(Note 7)
1.0
Symbol
Parameter
Conditions
V
CC
(V)
T
A
=
25
°
C
Typical
0.5
0.4
Units
V
OLP
Quiet Output Dynamic Peak V
OL
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
3.3
2.5
V
V
OLV
Quiet Output Dynamic Valley V
OL
3.3
2.5
0.5
0.4
V
Symbol
Parameter
Conditions
Typical
7
8
25
Units
pF
pF
pF
C
IN
C
I/O
C
PD
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
V
CC
=
Open, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
, f
=
10 MHz
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