參數(shù)資料
型號: DM74ALS245AWMX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Single 8-bit Bus Transceiver
中文描述: ALS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封裝: 0.300 INCH, MS-013, SOIC-20
文件頁數(shù): 2/6頁
文件大?。?/td> 73K
代理商: DM74ALS245AWMX
www.fairchildsemi.com
2
D
Absolute Maximum Ratings
(Note 1)
Note 1:
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 “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at V
CC
=
5V, T
A
=
25
°
C.
Symbol
Parameter
Switching Characteristics
(Note 2)
over recommended operating free air temperature range
Symbol
Note 2:
Switching characteristic conditions are V
CC
=
4.5V to 5.5V, R
L
=
500
, C
L
=
50 pF.
Supply Voltage
Input Voltage
Control Inputs
I/O Ports
Operating Free Air Temperature Range
Storage Temperature Range
Typical
θ
JA
N Package
M Package
7V
7V
5.5V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
53.0
°
C/W
72.0
°
C/W
Symbol
Parameter
Min
4.5
2
Typ
5
Max
5.5
Units
V
V
V
mA
mA
°
C
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Operating Free Air Temperature
0.8
15
24
70
0
Conditions
Min
Typ
Max
Units
V
IK
V
OH
Input Clamp Voltage
HIGH Level
V
CC
=
4.5V, I
IN
=
18 mA
V
CC
=
4.5V, I
OH
=
3 mA
V
CC
=
4.5V, I
OH
=
Max
I
OH
=
0.4 mA, V
CC
=
4.5V to 5.5V
V
CC
=
4.5V
V
CC
=
5.5V
1.5
V
V
2.4
3.2
Output Voltage
2
2.3
V
V
V
V
CC
2
V
OL
I
I
LOW Level Output Voltage
I
OL
=
24 mA
V
IN
=
7V
V
IN
=
5.5V
0.35
0.5
Input Current at Maximum
Input Voltage
HIGH Level Input Current
Control Inputs
A or B Ports
0.1
0.1
20
0.1
112
45
mA
I
IH
I
IL
I
O
I
CC
V
CC
=
5.5V, V
IN
=
2.7V
V
CC
=
5.5V, V
IN
=
0.4V
V
CC
=
5.5V, V
OUT
=
2.25V
V
CC
=
5.5V
μ
A
mA
mA
mA
LOW Level Input Current
Output Drive Current
Supply Current
30
Outputs HIGH
30
Outputs LOW
3-STATE
36
38
55
58
mA
mA
Parameter
Circuit Configuration
Min
Max
Units
t
PLH
Propagation Delay Time
3
10
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
t
PHL
3
10
ns
t
PZL
t
PZH
t
PLZ
t
PHZ
Output Enable Time to LOW Level
Output Enable Time to HIGH Level
Output Disable Time from LOW Level
5
5
4
20
20
15
ns
ns
ns
Output Disable Time from HIGH Level
2
10
ns
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