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74LCX245MTCX 参数 Datasheet PDF下载

74LCX245MTCX图片预览
型号: 74LCX245MTCX
PDF下载: 下载PDF文件 查看货源
内容描述: 低电压双向收发器,具有5V容限输入和输出 [Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs]
分类和应用:
文件页数/大小: 12 页 / 435 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
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74LCX245
Absolute Maximum Ratings
(Note 6)
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
STG
Parameter
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Source/Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature
Value
Conditions
Units
V
V
Output in 3-STATE
Output in HIGH or LOW State (Note 7)
V
I

GND
V
O

GND
V
O
!
V
CC
V
mA
mA
mA
mA
mA

0.5 to

7.0

0.5 to

7.0

0.5 to

7.0

0.5 to V
CC

0.5

50

50

50
r
50
r
100
r
100

65 to

150
q
C
Recommended Operating Conditions
(Note 8)
Symbol
V
CC
V
I
V
O
I
OH
/I
OL
Supply Voltage
Input Voltage
Output Voltage
Output Current
HIGH or LOW State
3-STATE
V
CC
V
CC
V
CC
T
A
Free-Air Operating Temperature
Input Edge Rate, V
IN
0.8V to 2.0V, V
CC
3.0V
3.0V to 3.6V
2.7V to 3.0V
2.3V to 2.7V
Parameter
Operating
Data Retention
Min
2.0
1.5
0
0
0
Max
3.6
3.6
5.5
V
CC
5.5
Units
V
V
V
r
24
r
12
r
8

40
0
85
10
mA
q
C
ns/V
'
t/
'
V
Note 6:
The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated
at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recom-
mended Operating Conditions” table will define the conditions for actual device operation.
Note 7:
I
O
Absolute Maximum Rating must be observed.
Note 8:
Unused inputs or I/O pins must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
OH
Parameter
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
I
OH
I
OH
I
OH
I
OH
I
OH
V
OL
LOW Level Output Voltage
I
OL
I
OL
I
OL
I
OL
I
OL
I
I
I
OZ
I
OFF
Input Leakage Current
3-STATE I/O Leakage
Power-Off Leakage Current
Conditions
V
CC
(V)
2.3 to 2.7
2.7 to 3.6
2.3 to 2.7
2.7 to 3.6
T
A
Min
1.7
2.0
0.7
0.8
V
CC

0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
V
V

40
q
C to

85
q
C
Max
Units
V
V

100
P
A

8 mA

12 mA

18 mA

24 mA
100
P
A
8mA
12 mA
16 mA
24 mA
2.3 to 3.6
2.3
2.7
3.0
3.0
2.3 to 3.6
2.3
2.7
3.0
3.0
2.3 to 3.6
2.3 to 3.6
0
0
d
V
I
d
5.5V
0
d
V
O
d
5.5V
V
I
V
IH
or V
IL
5.5V
V
I
or V
O
r
5.0
r
5.0
10
P
A
P
A
P
A
3
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