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TM4C129LNCZAD Datasheet, PDF (2054/2140 Pages) Texas Instruments – Tiva Microcontroller
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Electrical Characteristics
Table 31-7. Recommended FAST GPIO Pad Operating Conditions (continued)
Parameter Parameter Name
Min
Nom
Max
Unit
Fast GPIO High-level source current, VOH=2.4 Vb
2-mA Drive
2.0
-
-
mA
4-mA Drive
4.0
-
-
mA
IOH
8-mA Drive
8.0
-
-
mA
10-mA Drive
10.0
-
-
mA
12-mA Drive
12.0
-
-
mA
Fast GPIO Low-level sink current, VOL=0.4 Vb
2-mA Drive
2.0
-
-
mA
4-mA Drive
4.0
-
-
mA
IOL
8-mA Drive
8.0
-
-
mA
10-mA Drive
10.0
-
-
mA
12-mA Drive
12.0
-
-
mA
12-mA Drive overdriven to 18-mA
18.0
-
-
mA
a. Output/pull-up/pull-down disabled; only input enabled
b. IO specifications reflect the maximum current where the corresponding output voltage meets the VOH/VOL thresholds. IO
current can exceed these limits (subject to absolute maximum ratings).
Table 31-8. Recommended Slow GPIO Pad Operating Conditions
Parameter Parameter Name
Min
Nom
Max
Unit
VIH
Slow GPIO high-level input voltage
0.65 * VDD
-
4
V
I IH
Slow GPIO high-level input current a
-
-
4.1
nA
VIL
Slow GPIO low-level input voltage
I IL
Slow GPIO low-level input currenta
0
-
0.35 * VDD
V
-
-
-1
nA
VHYS
Slow GPIO Input Hysteresis
0.49
-
-
V
VOH
Slow GPIO High-level output voltage
2.4
-
-
V
VOL
Slow GPIO Low-level output voltage
-
-
0.4
V
IOH
High-level source current, VOH=2.4 Vb
2-mA Drive
2.0
-
-
mA
IOL
Low-level sink current, VOL=0.4 Vb
2-mA Drive
2.0
-
-
mA
a. Output/pull-up/pull-down disabled; only input enabled.
b. IO specifications reflect the maximum current where the corresponding output voltage meets the VOH/VOL thresholds. IO
current can exceed these limits (subject to absolute maximum ratings).
31.3.2.1 GPIO Current Restrictions
Table 31-9. GPIO Current Restrictionsa
Parameter Parameter Name
Min Nom
Max
IMAXL
Cumulative maximum GPIO current per side, leftb
-
-
110
IMAXB
Cumulative maximum GPIO current per side,
bottomb
-
-
116
IMAXR
Cumulative maximum GPIO current per side, rightb -
-
110
Unit
mA
mA
mA
2054
Texas Instruments-Production Data
June 18, 2014
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