LM3S1P51 Datasheet, PDF (971/1033 Pages) Texas Instruments – Stellaris® LM3S1P51 Microcontroller

Stellaris^® LM3S1P51 Microcontroller
23
23.1
23.2
Electrical Characteristics
Maximum Ratings
The maximum ratings are the limits to which the device can be subjected without permanently
damaging the device. Device reliability may be adversely affected by exposure to absolute-maximum
ratings for extended periods.
Note: The device is not guaranteed to operate properly at the maximum ratings.
Table 23-1. Maximum Ratings
Parameter Parameter Name^a
V_DD
V_DDA
V_BAT
V_{IN_GPIO}
V_DD supply voltage
V_DDA supply voltage
V_BAT battery supply voltage
Input voltage^b
Input voltage for PB0 and PB1 when configured as
GPIO
I_GPIOMAX
V_NON
Maximum current per output pin
Maximum input voltage on a non-power pin when the
microcontroller is unpowered
a. Voltages are measured with respect to GND.
b. Applies to static and dynamic signals including overshoot.
Value
Min
Max
0
4
0
4
0
4
-0.3
5.5
-0.3
V_DD + 0.3
-
25
-
300
Unit
V
V
V
V
V
mA
mV
Important: 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 (see “Connections for Unused
Signals” on page 968).
Recommended 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_OL value is
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 23-2. Recommended DC Operating Conditions
Parameter Parameter Name
V_DD
V_DDA
V_DDC
V_DD supply voltage
V_DDA supply voltage
V_DDC supply voltage, run mode
V_IH
High-level input voltage
V_IL
Low-level input voltage
Min
Nom
Max
Unit
3.0
3.3
3.6
V
3.0
3.3
3.6
V
1.235
1.3
1.365
V
2.1
-
5.0
V
-0.3
-
1.2
V
January 21, 2012
971
Texas Instruments-Production Data