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DM74LS245N View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
DM74LS245N
Fairchild
Fairchild Semiconductor Fairchild
DM74LS245N Datasheet PDF : 6 Pages
1 2 3 4 5 6
Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
DIR or G
7V
A or B
5.5V
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 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
4.75
VIH
HIGH Level Input Voltage
2
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
IOL
LOW Level Output Current
TA
Free Air Operating Temperature
0
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Nom
5
Min
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
HYS
Hysteresis (VT+ VT)
VCC = Min
0.2
VOH
HIGH Level
VCC = Min, VIH = Min
2.7
Output Voltage
VIL = Max, IOH = −1 mA
VCC = Min, VIL = Min
2.4
VIL = Max, IOH = −3 mA
VCC = Min, VIH = Min
2
VIL = 0.5V, IOH = Max
VOL
LOW Level
VCC = Min
IOL = 12 mA
Output Voltage
VIL = Max
VIH = Min
IOL = Max
IOZH
Off-State Output Current,
HIGH Level Voltage Applied
VCC = Max
VIL = Max
VO = 2.7V
IOZL
Off-State Output Current,
VIH = Min
LOW Level Voltage Applied
VO = 0.4V
II
Input Current at Maximum
VCC = Max
A or B
VI = 5.5V
Input Voltage
DIR or G 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)
40
ICC
Supply Current
Outputs HIGH
Outputs LOW
VCC = Max
Outputs at Hi-Z
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, not to exceed one second duration
Max
Units
5.25
V
V
0.8
V
15
mA
24
mA
70
°C
Typ
Max
(Note 2)
1.5
0.4
Units
V
V
3.4
V
0.4
V
0.5
20
µA
200
µA
0.1
mA
0.1
20
µA
0.2
mA
225
mA
48
70
62
90
mA
64
95
www.fairchildsemi.com
2
 

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