DM74ALS540AN Просмотр технического описания (PDF) - Fairchild Semiconductor
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DM74ALS540AN Datasheet PDF : 5 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
Input Voltage
Voltage Applied to a
Disabled 3-STATE Output
Operating Free-Air Temperature Range
Storage Temperature Range
Typical θJA
N Package
M Package
7V
7V
5.5V
0°C to +70°C
−65°C to +150°C
58.5°C/W
77.5°C/W
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
Nom
4.5
5
2
0
Electrical Characteristics
over recommended free air temperature range
Symbol
Parameter
Test Conditions
Min
VIK
VOH
VOL
II
IIH
IIL
IOZH
IOZL
IO
ICC
Input Clamp Voltage
HIGH Level
Output Voltage
VCC = Min, II = −18 mA
VCC = 4.5V to 5.5V
VCC = Min
LOW Level
Output Voltage
VCC = Min
Input Current @ Maximum Input Voltage VCC = Max, VI = 7V
HIGH Level Input Current
VCC = Max, VI = 2.7V
LOW Level Input Current
VCC = Max, VI = 0.4V
HIGH Level 3-STATE Output Current VCC = Max, VO = 2.7V
LOW Level 3-STATE Output Current
VCC = Max, VO = 0.4V
Output Drive Current
VCC = Max, VO = 2.25V
Supply Current
VCC = Max
IOH = −0.4 mA
IOH = −3 mA
IOH = Max
IOL = 12 mA
IOL = 24 mA
VCC − 2
2.4
2
−30
Outputs HIGH
Outputs LOW
Outputs Disabled
Max
5.5
0.7
−15
24
70
Typ
3.2
0.25
0.35
5
13
11
Units
V
V
V
mA
mA
°C
Max
Units
−1.5
V
V
0.4
mA
0.5
100
µA
20
µA
−100
µA
20
µA
−20
µA
−112
mA
10
22
mA
19
Switching Characteristics
over recommended free air operating temperature range
Symbol
Parameter
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
tPZH
Output Enable Time to HIGH Level Output
tPZL
Output Enable Time to LOW Level Output
tPHZ
Output Disable Time from HIGH Level Output
tPLZ
Output Disable Time from LOW Level Output
Conditions
VCC = 4.5V to 5.5V,
R1 = R2 = 500Ω,
CL = 50 pF
From (Input)
Min
To (Output)
A or B to Y
2
A or B to Y
2
G to Y
5
G to Y
8
G to Y
1
G to Y
2
Max
Units
12
ns
9
ns
15
ns
20
ns
10
ns
12
ns
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