SWRS243B February 2020 – May 2021 CC3235MODAS , CC3235MODASF , CC3235MODS , CC3235MODSF
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
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 8-12 shows the GPIO timing diagram.
Table 8-19 lists the GPIO output transition times for VBAT = 2.3 V.
DRIVE STRENGTH (mA) | DRIVE STRENGTH CONTROL BITS | Tr | Tf | UNIT | ||||
---|---|---|---|---|---|---|---|---|
MIN | NOM | MAX | MIN | NOM | MAX | |||
2 | 2MA_EN=1 | 11.7 | 13.9 | 16.3 | 11.5 | 13.9 | 16.7 | ns |
4MA_EN=0 | ||||||||
4 | 2MA_EN=0 | 13.7 | 15.6 | 18.0 | 9.9 | 11.6 | 13.6 | ns |
4MA_EN=1 | ||||||||
6 | 2MA_EN=1 | 5.5 | 6.4 | 7.4 | 3.8 | 4.7 | 5.8 | ns |
4MA_EN=1 |
Table 8-20 lists the GPIO output transition times for VBAT = 3.3 V.
DRIVE STRENGTH (mA) | DRIVE STRENGTH CONTROL BITS | Tr | Tf | UNIT | ||||
---|---|---|---|---|---|---|---|---|
MIN | NOM | MAX | MIN | NOM | MAX | |||
2 | 2MA_EN=1 | 8.0 | 9.3 | 10.7 | 8.2 | 9.5 | 11.0 | ns |
4MA_EN=0 | ||||||||
4 | 2MA_EN=0 | 6.6 | 7.1 | 7.6 | 4.7 | 5.2 | 5.8 | ns |
4MA_EN=1 | ||||||||
6 | 2MA_EN=1 | 3.2 | 3.5 | 3.7 | 2.3 | 2.6 | 2.9 | ns |
4MA_EN=1 |