27 Electrical Characteristics
27.1 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 27-1. Absolute Maximum Ratings
Unit
Value
Parameter Name
a
Parameter
MaxMin
V40V
DD
supply voltageV
DD
V40V
DDA
supply voltageV
DDA
V40V
BAT
battery supply voltageV
BAT
V/µs0.70V
BAT
battery supply voltage ramp timeV
BATRMP
V4-0.3Input voltage
b
V
IN_GPIO
mA64-Maximum current per output pinI
GPIOMAX
°C150-65Unpowered storage temperature rangeT
S
°C125-Maximum junction temperatureT
JMAX
a. Voltages are measured with respect to GND.
b. Applies to static and dynamic signals including overshoot.
Important: This device contains circuitry to protect the I/Os against damage due to high-static
voltages; 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 1816).
Table 27-2. ESD Absolute Maximum Ratings
UnitMaxNomMinParameter NameParameter
kV2.0--V
ESDHBM
b
Component-Level ESD Stress
Voltage
a
V500--V
ESDCDM
c
a. Electrostatic discharge (ESD) is used to measure device sensitivity/immunity to damage caused by electrostatic discharges
in device.
b. All pins are HBM compliant to 2 kV for all combinations as per JESD22-A114F, except for the following stress combinations:
■ The Ethernet EN0RXIN, EN0TX0N, EN0RXIP, and EN0TXOP pins to each other.
■ The GPIO pins PM4, PM5, PM6, and PM7 to other pins.
These exceptions are compliant to 500 V and do not require any special handling beyond typical ESD control procedures
during assembly operations per JEDEC publication JEP155. Note that these pins do meet the 500 V CDM specification.
c. Level listed is the passing level per EIA-JEDEC JESD22-C101E. JEDEC document JEP157 states that 250 V CDM allows
safe manufacturing with a standard ESD control process.
June 18, 20141818
Texas Instruments-Production Data
Electrical Characteristics
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