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LM555 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM555
Description  Timer
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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 4 page
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Electrical Characteristics (Notes 1, 2) (Continued)
(T
A = 25˚C, VCC = +5V to +15V, unless othewise specified)
Parameter
Conditions
Limits
Units
LM555C
Min
Typ
Max
Output Voltage Drop (Low)
V
CC = 15V
I
SINK = 10mA
0.1
0.25
V
I
SINK = 50mA
0.4
0.75
V
I
SINK = 100mA
2
2.5
V
I
SINK = 200mA
2.5
V
V
CC =5V
I
SINK = 8mA
V
I
SINK = 5mA
0.25
0.35
V
Output Voltage Drop (High)
I
SOURCE = 200mA, VCC = 15V
12.5
V
I
SOURCE = 100mA, VCC = 15V
12.75
13.3
V
V
CC = 5V
2.75
3.3
V
Rise Time of Output
100
ns
Fall Time of Output
100
ns
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 3: For operating at elevated temperatures the device must be derated above 25˚C based on a +150˚C maximum junction temperature and a thermal
resistance of 106˚C/W (DIP), 170˚C/W (S0-8), and 204˚C/W (MSOP) junction to ambient.
Note 4: Supply current when output high typically 1 mA less at VCC =5V.
Note 5: Tested at VCC = 5V and VCC = 15V.
Note 6: This will determine the maximum value of RA +RB for 15V operation. The maximum total (RA +RB)is20MΩ.
Note 7: No protection against excessive pin 7 current is necessary providing the package dissipation rating will not be exceeded.
Note 8: Refer to RETS555X drawing of military LM555H and LM555J versions for specifications.
www.national.com
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