DM74AS640WM View Datasheet(PDF) - Fairchild Semiconductor
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Description
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DM74AS640WM Datasheet PDF : 5 Pages
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Absolute Maximum Ratings(Note 1)
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 θJA
N Package
51.5°C
M Package
69.0°C
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
Symbol
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Min
Typ
Max
4.5
5
5.5
2
0.8
−15
64
0
70
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
VI
VOH
VOL
II
IIH
IIL
IO
ICCH
ICCL
ICCZ
Input Clamp Voltage
HIGH Level
Output Voltage
LOW Level Output Voltage
Input Current at Max
Input Voltage
HIGH Level
Input Current
LOW Level
Input Current
Output Drive Current
Supply Current with Outputs HIGH
Supply Current with Outputs LOW
Supply Current with Outputs
in 3-STATE
VCC = Min, II = −18 mA
VCC = 4.5V to 5.5V, IOH = −2 mA
VCC = 4.5V, IOH = −3 mA
VCC = 4.5V, IOH = Max
VCC = Min, IOL = Max
VCC = Max, VI = 7V,
(VI = 5.5V for A or B Ports)
VCC = Max
VI = 2.7V (Note 3)
VCC = Max,
VI = 0.4V (Note 3)
VCC = Max, VO = 2.25V
VCC = Max
Control Inputs
A or B Ports
Control Inputs
A or B Ports
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.
Min
VCC − 2
2.4
2.4
−50
Typ
(Note 2)
0.35
37
78
51
Units
V
V
V
mA
mA
°C
Max
−1.2
0.55
0.1
20
70
−0.5
−0.75
−150
58
123
80
Units
V
V
V
V
V
mA
µA
mA
mA
mA
mA
mA
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