DM74LS112AM 查看數據表（PDF） - Fairchild Semiconductor
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DM74LS112AM
Fairchild Semiconductor
DM74LS112AM Datasheet PDF : 5 Pages
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Absolute Maximum Ratings(Note 2)
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 2: 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
Parameter
Min
VCC
Supply Voltage
VIH
HIGH Level Input Voltage
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
IOL
LOW Level Output Current
fCLK
Clock Frequency (Note 3)
fCLK
Clock Frequency (Note 5)
tW
Pulse Width
Clock HIGH
(Note 3)
Preset LOW
4.75
2
0
0
20
25
Clear LOW
25
tW
Pulse Width
Clock HIGH
25
(Note 5)
Preset LOW
30
Clear LOW
30
tSU
Setup Time (Note 3)(Note 4)
20↓
tSU
Setup Time (Note 4)(Note 5)
25↓
tH
Hold Time (Note 3)(Note 4)
0↓
tH
Hold Time (Note 4)(Note 5)
5↓
TA
Free Air Operating Temperature
0
Note 3: CL = 15 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.
Note 4: The symbol (↓) indicates the falling edge of the clock pulse is used for reference.
Note 5: CL = 50 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.
Nom
5
Max
5.25
0.8
−0.4
8
30
25
70
Units
V
V
V
mA
mA
MHz
MHz
ns
ns
ns
ns
ns
ns
°C
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