參數(shù)資料
型號： 74FR245SCX
英文描述： Single 8-bit Bus Transceiver
中文描述： 單8位總線收發(fā)器
文件頁數(shù)： 3/7頁
文件大?。?/td> 70K
代理商： 74FR245SCX
3
www.fairchildsemi.com
7
Absolute Maximum Ratings
(Note 1)
Recommended Operating
Conditions
Note 1:
Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2:
Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Storage Temperature
Ambient Temperature under Bias
Junction Temperature under Bias
V
CC
Pin Potential to Ground Pin
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with V
CC
=
0V)
Standard Output
3-STATE Output
Current Applied to Output
in LOW State (Max)
ESD Last Passing Voltage (Min)
65
°
C to
+
150
°
C
55
°
C to
+
125
°
C
55
°
C to
+
150
°
C
0.5V to
+
7.0V
0.5V to
+
7.0V
30 mA to
+
5.0 mA
0.5V to V
CC
0.5V to
+
5.5V
twice the rated I
OL
(mA)
4000V
Free Air Ambient Temperature
Supply Voltage
0
°
C to
+
70
°
C
+
4.5V to
+
5.5V
Symbol
Parameter
Min
Typ
Max
Units
V
CC
Conditions
V
IH
V
IL
V
CD
V
OH
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
2.0
V
V
V
Recognized HIGH Signal
Recognized LOW Signal
I
IN
=
18 mA
I
OH
=
3 mA (A
n
, B
n
)
I
OH
=
15 mA (A
, B
n
)
I
OL
=
64 mA (A
n
, B
n
)
0.8
1.2
Min
Output HIGH Voltage
2.4
2.0
V
V
V
Min
Min
Min
V
OL
Output LOW Voltage
0.55
I
IH
Input HIGH Current
5
μ
A
Max
V
IN
=
2.7V (OE, T/R)
I
BVI
Input HIGH Current
7
μ
A
Max
V
IN
=
7.0V (OE, T/R)
Breakdown Test
Input HIGH Current
Breakdown Test (I/O)
I
BVIT
100
μ
A
Max
V
IN
=
5.5V (A
n
, B
n
)
I
IL
V
ID
Input LOW Current
250
μ
A
V
Max
V
IN
=
0.5V (OE, T/R)
I
ID
=
1.9
μ
A
All Other Pins Grounded
V
IOD
=
150 mV
All Other Pins Grounded
V
OUT
=
2.7V (A
n
, B
n
)
V
OUT
=
0.5V (A
n
, B
n
)
V
OUT
=
0.0V (A
n
, B
n
)
V
OUT
=
V
CC
(A
n
, B
n
)
V
OUT
=
5.25V (A
n
, B
n
)
All Outputs HIGH
All Outputs LOW
Outputs 3-STATE
Input Leakage Test
4.75
0.0
I
OD
Output Circuit
3.75
μ
A
0.0
Leakage Current
Output Leakage Current
Output Leakage Current
I
IH
+
I
OZH
I
IL
+
I
OZL
I
OS
I
CEX
I
ZZ
I
CCH
I
CCL
I
CCZ
25
μ
A
μ
A
mA
μ
A
μ
A
mA
mA
mA
Max
Max
150
225
50
100
Output Short-Circuit Current
Output HIGH Leakage Current
Bus Drainage Test
100
Max
Max
0.0
Power Supply Current
Power Supply Current
Power Supply Current
55
75
55
75
110
75
Max
Max
Max
C
IN
Input Capacitance
8.0
pF
5.0
OE, T/R
17.0
pF
5.0
A
n
, B
n
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