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DM74ALS640A Folha de dados(PDF) 2 Page - Fairchild Semiconductor

Nome de Peças DM74ALS640A
Descrição Electrónicos  Inverting Octal Bus Transceiver
Download  4 Pages
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74ALS640A Folha de dados(HTML) 2 Page - Fairchild Semiconductor

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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 Free Air Temperature Range
Note 2: For I/O ports, IIH and IILparameters include the 3-STATE output current (IOZL and IOZH).
Switching Characteristics
Over Recommended Operating Free Air Temperature Range
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 Range
0
70
°C
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
VIC
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
VOH
HIGH Level
VCC = 4.5 to 5.5V
IOH = −0.4 mA
VCC − 2
Output Voltage
VCC = Min
IOH = − 3 mA
2.4
2.9
V
IOH = Max
2
VOL
LOW Level
VCC = Min
IOL = 12 mA
0.25
0.4
V
Output Voltage
IOL = 24 mA
0.35
0.5
II
Input Current at Maximum
VCC = Max.
I/O Ports, VI = 5.5V
100
µA
Input Voltage
Control Inputs, VI = 7V
100
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V (Note 2)
20
µA
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V (Note 2)
−100
µA
IO
Output Drive Current
VCC = Max, VO = 2.25V
−30
−112
mA
ICC
Supply Current
VCC = Max
Outputs HIGH
19
45
Outputs LOW
23
55
mA
Outputs Disabled
17
50
Symbol
Parameter
From
To
Conditions
Min
Max
Units
(Input)
(Output)
tPLH
Propagation Delay Time
A or B
B or A
VCC = 4.5 to 5.5V,
111
ns
LOW-to-HIGH Level Output
CL = 50 pF,
tPHL
Propagation Delay Time
A or B
B or A
R1
= R2 = 500Ω
110
ns
HIGH-to-LOW Level Output
tPZH
Output Enable Time to HIGH Level Output
G
A or B
4
21
ns
tPZL
Output Enable Time to LOW Level Output
G
A or B
5
24
ns
tPHZ
Output Disable Time from HIGH Level Output
G
A or B
1
10
ns
tPLZ
Output Disable Time from LOW Level Output
G
A or B
3
15
ns


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