TM4C1233E6PZ Datasheet, PDF (1193/1242 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C1233E6PZ Microcontroller
22.3
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 with the total number of high-current GPIO
outputs not exceeding four for the entire package.
Table 22-5. Recommended DC Operating Conditions
Parameter Parameter Name
Min
Nom
Max
Unit
V_DD
V_DD supply voltage
3.15
3.3
3.63
V
V_DDA
V_DDA supply voltage
2.97
3.3
3.63
V
V_DDC
V_DDC supply voltage
1.08
1.2
1.32
V
V_DDCDSab
V_DDC supply voltage, Deep-sleep mode
1.08
-
1.32
V
a. These values are valid when LDO is in operation.
b. There are peripheral timing restrictions for SSI and LPC in Deep-sleep mode. Please refer to those peripheral characteristic
sections for more information.
Table 22-6. Recommended GPIO Pad Operating Conditions
Parameter Parameter Name
Min
Nom
Max
Unit
V_IH
V_IL
V_HYS
V_OH
V_OL
I_OH
GPIO high-level input voltage
GPIO low-level input voltage
GPIO input hysteresis
GPIO high-level output voltage
GPIO low-level output voltage
High-level source current, V_OH=2.4 V^a
2-mA Drive
4-mA Drive
0.65 * V_DD
0
0.2
2.4
-
2.0
4.0
-
5.5
V
-
0.35 * V_DD
V
-
-
V
-
-
V
-
0.4
V
-
-
mA
-
-
mA
8-mA Drive
8.0
-
-
mA
Low-level sink current, V_OL=0.4 V^a
2-mA Drive
2.0
-
-
mA
I_OL
4-mA Drive
4.0
-
-
mA
8-mA Drive
8.0
-
-
mA
8-mA Drive, V_OL=1.2 V
18.0
-
-
mA
a. I_O specifications reflect the maximum current where the corresponding output voltage meets the V_OH/V_OL thresholds. I_O
current can exceed these limits (subject to absolute maximum ratings).
Table 22-7. GPIO Current Restrictions^a
Parameter Parameter Name
Min Nom
Max
Unit
I_MAXL
Cumulative maximum GPIO current per side, left^b
-
-
70
mA
I_MAXB
Cumulative maximum GPIO current per side, bottom^b -
-
70
mA
I_MAXR
Cumulative maximum GPIO current per side, right^b -
-
75
mA
I_MAXT
Cumulative maximum GPIO current per side, top^b
-
-
70
mA
a. Based on design simulations, not tested in production.
b. Sum of sink and source current for GPIOs as shown in Table 22-8 on page 1194.
June 12, 2014
Texas Instruments-Production Data
1193