DM74LS266M 查看數據表（PDF） - Fairchild Semiconductor
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DM74LS266M Datasheet PDF : 4 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°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” table 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
VOH
IOL
TA
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
LOW Level Output Current
Free Air Operating Temperature
Min
Nom
4.75
5
2
0
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
ICEX
HIGH Level
VCC = Min, VO = 5.5V,
Output Current
VIL = Max
VOL
LOW Level
VCC = Min, IOL = Max,
Output Voltage
VIH = Min
IOL = 4 mA, VCC = Min
II
Input Current @ Max Input Voltage
VCC = Max, VI = 7V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
IOS
Short Circuit Output Current
VCC = Max (Note 3)
−20
ICC
Supply Current
VCC = Max
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Max
5.25
0.8
5.5
8
70
Units
V
V
V
V
mA
°C
Typ
(Note 2)
Max
−1.5
100
0.5
0.4
0.2
40
−0.8
−100
13
Units
V
µA
V
mA
µA
mA
mA
mA
Switching Characteristics
VCC = 5V, TA = 25°C
Symbol
Parameter
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
RL = 2 kΩ
CL = 15 pF
Min
Max
23
23
Units
ns
ns
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