19 Electrical Characteristics
19.1 DC Characteristics
19.1.1 Maximum Ratings
The maximum ratings are the limits to which the device can be subjected without permanently
damaging the device.
Note: The device is not guaranteed to operate properly at the maximum ratings.
Table 19-1. Maximum Ratings
UnitValueSymbolCharacteristic
a
MaxMin
V40V
DD
I/O supply voltage (V
DD
)
V30V
DD25
Core supply voltage (V
DD25
)
V40V
DDA
Analog supply voltage (V
DDA
)
V40V
CCPHY
Ethernet PHY supply voltage (V
CCPHY
)
V5.5-0.3V
IN
Input voltage
mA25-IMaximum current per output pins
a. Voltages are measured with respect to GND.
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 (for example, either GND or V
DD
).
19.1.2 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
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 19-2. Recommended DC Operating Conditions
UnitMaxNomMinParameter NameParameter
V3.63.33.0I/O supply voltageV
DD
V2.752.52.25Core supply voltageV
DD25
V3.63.33.0Analog supply voltageV
DDA
V3.63.33.0Ethernet PHY supply voltageV
CCPHY
V5.0-2.0High-level input voltageV
IH
V1.3--0.3Low-level input voltageV
IL
V--2.4High-level output voltageV
OH
a
V0.4--Low-level output voltageV
OL
a
485June 22, 2010
Texas Instruments-Production Data
Stellaris® LM3S8530 Microcontroller