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DM74AS640 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part # DM74AS640
Description  3-STATE Octal Bus Transceiver
PDF  5 Pages
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74AS640 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 (unless otherwise noted)
Note 2: All typicals are at VCC = 5.0V, TA = 25°C.
Note 3: For I/O ports, the parameters IIH and IIL include the OFF-State output current, IOZH and IOZL.
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
51.5
°C
M Package
69.0
°C
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
64
mA
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.2
V
VOH
HIGH Level
VCC = 4.5V to 5.5V, IOH = −2 mA
VCC − 2V
Output Voltage
VCC = 4.5V, IOH = −3 mA
2.4
V
VCC = 4.5V, IOH = Max
2.4
V
VOL
LOW Level Output Voltage
VCC = Min, IOL = Max
0.35
0.55
V
II
Input Current at Max
VCC = Max, VI = 7V,
0.1
mA
Input Voltage
(VI = 5.5V for A or B Ports)
IIH
HIGH Level
VCC = Max
Control Inputs
20
µA
Input Current
VI = 2.7V (Note 3)
A or B Ports
70
IIL
LOW Level
VCC = Max,
Control Inputs
−0.5
mA
Input Current
VI = 0.4V (Note 3)
A or B Ports
−0.75
IO
Output Drive Current
VCC = Max, VO = 2.25V
−50
−150
mA
ICCH
Supply Current with Outputs HIGH
VCC = Max
37
58
mA
ICCL
Supply Current with Outputs LOW
78
123
mA
ICCZ
Supply Current with Outputs
51
80
mA
in 3-STATE



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