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DM74ALS245ASJ Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part # DM74ALS245ASJ
Description  Octal 3-STATE Bus Transceiver
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74ALS245ASJ Datasheet(HTML) 2 Page - Fairchild Semiconductor

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2
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 VCC = 5V, TA = 25°C.
Switching Characteristics (Note 2)
over recommended operating free air temperature range
Note 2: Switching characteristic conditions are VCC = 4.5V to 5.5V, RL = 500Ω, CL = 50 pF.
Supply Voltage
7V
Input Voltage
Control Inputs
7V
I/O Ports
5.5V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
−65°C to +150°C
Typical
θ
JA
N Package
53.0
°C/W
M Package
72.0
°C/W
Symbol
Parameter
Min
Typ
Max
Units
VCC
Supply Voltage
4.5
5
5.5
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−15
mA
IOL
LOW Level Output Current
24
mA
TA
Operating Free Air Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIK
Input Clamp Voltage
VCC = 4.5V, IIN = −18 mA
−1.5
V
VOH
HIGH Level
VCC = 4.5V, IOH = −3 mA
2.4
3.2
V
Output Voltage
VCC = 4.5V, IOH = Max
2
2.3
V
IOH = −0.4 mA, VCC = 4.5V to 5.5V
VCC − 2V
VOL
LOW Level Output Voltage
VCC = 4.5V
IOL = 24 mA
0.35
0.5
V
II
Input Current at Maximum
VCC = 5.5V
VIN = 7V
Control Inputs
0.1
mA
Input Voltage
VIN = 5.5V
A or B Ports
0.1
IIH
HIGH Level Input Current
VCC = 5.5V, VIN = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = 5.5V, VIN = 0.4V
−0.1
mA
IO
Output Drive Current
VCC = 5.5V, VOUT = 2.25V
−30
−112
mA
ICC
Supply Current
VCC = 5.5V
Outputs HIGH
30
45
mA
Outputs LOW
36
55
mA
3-STATE
38
58
mA
Symbol
Parameter
Circuit Configuration
Min
Max
Units
tPLH
Propagation Delay Time
310
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
310
ns
HIGH-to-LOW Level Output
tPZL
Output Enable Time to LOW Level
5
20
ns
tPZH
Output Enable Time to HIGH Level
5
20
ns
tPLZ
Output Disable Time from LOW Level
4
15
ns
tPHZ
Output Disable Time from HIGH Level
2
10
ns


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