CC3220MOD_17 Datasheet, PDF (44/88 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Wireless Module Solutions (S and SF)

CC3220MOD
SWRS206A – MARCH 2017 – REVISED JUNE 2017
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5.13.5.3 GPIOs
All digital pins of the module can be used as general-purpose input/output (GPIO) pins. The GPIO module
consists of four GPIO blocks, each of which provides eight GPIOs. The GPIO module supports 24
programmable GPIO pins, depending on the peripheral used. Each GPIO has configurable pullup and
pulldown strength (weak 10 µA), configurable drive strength (2, 4, and 6 mA), and open-drain enable.
Figure 5-12 shows the GPIO timing diagram.
V_DD
80%
20%
t_GPIOR
t_GPIOF
Figure 5-12. GPIO Timing Diagram
SWAS031-067
Table 5-8 lists the GPIO output transition times for V_BAT = 2.3 V.
Table 5-8. GPIO Output Transition Times (V_BAT = 2.3 V)⁽¹⁾⁽²⁾
DRIVE
STRENGTH
(mA)
DRIVE STRENGTH
CONTROL BITS
T_r
MIN
NOM
MAX
T_f
MIN
NOM
2MA_EN=1
2
11.7
13.9
16.3
11.5
13.9
4MA_EN=0
2MA_EN=0
4
13.7
15.6
18.0
9.9
11.6
4MA_EN=1
2MA_EN=1
6
4MA_EN=1
5.5
6.4
7.4
3.8
4.7
(1) V_BAT = 2.3 V, T = 25°C, total pin load = 30 pF
(2) The transition data applies to the pins other than the multiplexed analog-digital pins 25, 26, 42, and 44.
Table 5-9 lists the GPIO output transition times for V_BAT = 3.3 V.
Table 5-9. GPIO Output Transition Times (V_BAT = 3.3 V)⁽¹⁾⁽²⁾
DRIVE
STRENGTH
(mA)
DRIVE STRENGTH
CONTROL BITS
T_r
MIN
NOM
MAX
T_f
MIN
NOM
2MA_EN=1
2
4MA_EN=0
8.0
9.3
10.7
8.2
9.5
2MA_EN=0
4
4MA_EN=1
6.6
7.1
7.6
4.7
5.2
2MA_EN=1
6
4MA_EN=1
3.2
3.5
3.7
2.3
2.6
(1) V_BAT = 3.3 V, T = 25°C, total pin load = 30 pF
(2) The transition data applies to the pins except the multiplexed analog-digital pins 29, 30, 45, 50, 52 and 53.
MAX
16.7
UNIT
ns
13.6
ns
5.8
ns
MAX
11.0
UNIT
ns
5.8
ns
2.9
ns
44
Specifications
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