LM3S1439 Luminary Micro, Inc, LM3S1439 Datasheet - Page 504
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LM3S1439
Manufacturer Part Number
LM3S1439
Description
Lm3s1439 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S1439.pdf
(544 pages)
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Electrical Characteristics
22
22.1
22.1.1
22.1.2
504
Electrical Characteristics
DC Characteristics
Maximum Ratings
The maximum ratings are the limits to which the device can be subjected without permanently
damaging the device.
Note:
Table 22-1. Maximum Ratings
a. Voltages are measured with respect to GND.
Important:
Recommended DC Operating Conditions
For special high-current applications, the GPIO output buffers may be used with the following
restrictions. With the GPIO pins configured as 8-mA output drivers, a total of four GPIO outputs may
be used to sink current loads up to 18 mA each. At 18-mA sink current loading, the V
specified as 1.2 V. The high-current GPIO package pins must be selected such that there are only
a maximum of two per side of the physical package or BGA pin group with the total number of
high-current GPIO outputs not exceeding four for the entire package.
Table 22-2. Recommended DC Operating Conditions
Characteristic
a
I/O supply voltage (V
Core supply voltage (V
Analog supply voltage (V
Battery supply voltage (V
Input voltage
Maximum current per output pins
Parameter
V
V
V
V
V
V
V
DD25
V
DDA
BAT
SIH
SIL
DD
IH
IL
The device is not guaranteed to operate properly at the maximum ratings.
Parameter Name
I/O supply voltage
Core supply voltage
Analog supply voltage
Battery supply voltage
High-level input voltage
Low-level input voltage
High-level input voltage for Schmitt trigger inputs
Low-level input voltage for Schmitt trigger inputs
This device contains circuitry to protect the inputs against damage due to high-static
voltages or electric fields; however, it is advised that normal precautions be taken to
avoid application of any voltage higher than maximum-rated voltages to this
high-impedance circuit. Reliability of operation is enhanced if unused inputs are
connected to an appropriate logic voltage level (for example, either GND or V
DD
DD25
)
DDA
BAT
)
)
)
Symbol
V
V
V
V
V
DD25
DDA
BAT
DD
I
IN
Min
-0.3
0
0
0
0
-
Value
Preliminary
Max
5.5
25
4
3
4
4
Unit
mA
V
V
V
V
V
0.8 * V
2.25
Min
-0.3
3.0
3.0
2.3
2.0
0
DD
Nom
3.3
2.5
3.3
3.0
-
-
-
-
0.2 * V
Max
2.75
V
3.6
3.6
3.6
5.0
1.3
DD
DD
Unit
V
V
V
V
V
V
V
V
OL
July 25, 2008
value is
DD
).
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