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DM74LS245SJ Scheda tecnica(PDF) 2 Page - Fairchild Semiconductor

Il numero della parte DM74LS245SJ
Spiegazioni elettronici  3-STATE Octal Bus Transceiver
Download  6 Pages
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74LS245SJ Scheda tecnica(HTML) 2 Page - Fairchild Semiconductor

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Absolute Maximum Ratings(Note 1)
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
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
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
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
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−15
mA
IOL
LOW Level Output Current
24
mA
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
HYS
Hysteresis (VT+ − VT−)VCC = Min
0.2
0.4
V
VOH
HIGH Level
VCC = Min, VIH = Min
2.7
Output Voltage
VIL = Max, IOH = −1 mA
VCC = Min, VIL = Min
2.4
3.4
V
VIL = Max, IOH = −3 mA
VCC = Min, VIH = Min
2
VIL = 0.5V, IOH = Max
VOL
LOW Level
VCC = Min
IOL = 12 mA
0.4
Output Voltage
VIL = Max
IOL = Max
0.5
V
VIH = Min
IOZH
Off-State Output Current,
VCC = Max
VO = 2.7V
20
µA
HIGH Level Voltage Applied
VIL = Max
IOZL
Off-State Output Current,
VIH = Min
VO = 0.4V
−200
µA
LOW Level Voltage Applied
II
Input Current at Maximum
VCC = Max
A or B
VI = 5.5V
0.1
mA
Input Voltage
DIR or G
VI = 7V
0.1
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
−0.2
mA
IOS
Short Circuit Output Current
VCC = Max (Note 3)
−40
−225
mA
ICC
Supply Current
Outputs HIGH
VCC = Max
48
70
Outputs LOW
62
90
mA
Outputs at Hi-Z
64
95


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