ZHCSJU5B February 2019 – May 2021 CC3135
PRODUCTION DATA
Table 7-1 describes the CC3135 pins.
Digital IOs on the CC3135 device refer to hostless mode, BLE/2.4 GHz coexistence, and antenna select IOs, not general-purpose IOs.
If an external device drives a positive voltage to signal pads when the CC3135 device is not powered, DC current is drawn from the other device. If the drive strength of the external device is adequate, an unintentional wakeup and boot of the CC3135 device can occur. To prevent current draw, TI recommends one of the following:
PIN | DEFAULT FUNCTION | DIGITAL I/O | STATE AT RESET AND HIBERNATE | I/O TYPE(1) | DESCRIPTION | |||
---|---|---|---|---|---|---|---|---|
PAD_ CONFIG |
HOSTLESS MODE | BLE COEX | ||||||
CC_COEX_ OUT |
CC_COEX_ IN |
|||||||
1 | DIO10 | 10 | Y | Y | Y | – | I/O | Digital input or output |
2 | nHIB | 11 | - | - | - | Hi-Z | I | Hibernate signal input to the NWP subsystem (active low). This is connected to the MCU GPIO. If the GPIO from the MCU can float while the MCU enters low power, consider adding a pullup resistor on the board to avoid floating. |
3 | DIO12 | 12 | Y | Y | Y | – | O | Digital input or output |
4 | DIO13 | 13 | Y | Y | Y | – | – | Digital input or output |
5 | HOST_SPI_CLK | 14 | - | - | - | Hi-Z | I | Host interface SPI clock |
6 | HOST_SPI_MOSI | 15 | - | - | - | Hi-Z | I | Host interface SPI data input |
7 | HOST_SPI_MISO | 16 | - | - | - | Hi-Z | O | Host interface SPI data output |
8 | HOST_SPI_nCS | 17 | - | - | - | Hi-Z | I | Host interface SPI chip select (active low) |
9 | VDD_DIG1 | - | N/A | N/A | N/A | Hi-Z | Power | Digital core supply (1.2 V) |
10 | VIN_IO1 | - | N/A | N/A | N/A | Hi-Z | Power | I/O supply |
11 | FLASH_SPI_CLK | - | N/A | N/A | N/A | Hi-Z | O | Serial Flash interface: SPI clock |
12 | FLASH_SPI_MOSI | - | N/A | N/A | N/A | Hi-Z | O | Serial Flash interface: SPI data out |
13 | FLASH _SPI_MISO | - | N/A | N/A | N/A | Hi-Z | I | Serial Flash interface: SPI data in (active high) |
14 | FLASH _SPI_CS | - | N/A | N/A | N/A | Hi-Z | O | Serial Flash interface: SPI chip select (active low) |
15 | HOST_INTR | 22 | - | - | - | Hi-Z | O | Interrupt output (active high) |
16 | DIO23 | 23 | Y | Y | Y | Hi-Z | Digital input or output | |
17 | DIO24 | 24 | Y | Y | Y | Hi-Z | Digital input or output | |
18 | DIO28 | 40 | Y | Y | Y | – | – | Digital input or output |
19 | Reserved | 28 | - | - | - | Hi-Z | – | Connect a 100-kΩ pulldown resistor to ground. |
20 | DIO29 | 29 | Y | Y | Y | Hi-Z | Digital input or output | |
21 | SOP2/TCXO_EN(2) | 25 | Y(3) | Y | - | Hi-Z | O | Controls restore to default mode. Enable signal for external TCXO. Add a 10-kΩ pulldown resistor to ground. |
22 | WLAN_XTAL_N | - | N/A | N/A | N/A | Hi-Z | Analog | Connect the WLAN 40-MHz crystal here. |
23 | WLAN_XTAL_P | - | N/A | N/A | N/A | Hi-Z | Analog | Connect the WLAN 40-MHz crystal here. |
24 | VDD_PLL | - | N/A | N/A | N/A | Hi-Z | Power | Internal PLL power supply (1.4 V nominal) |
25 | LDO_IN2 | - | N/A | N/A | N/A | Hi-Z | Power | Input to internal LDO |
26 | NC | - | N/A | N/A | N/A | – | – | No Connect |
27 | A_RX | - | N/A | N/A | N/A | – | RF | 5 GHz RF RX |
28 | A_TX | - | N/A | N/A | N/A | – | RF | 5 GHz RF TX |
29 | GND | - | N/A | N/A | N/A | – | Power | GND |
30 | GND | - | N/A | N/A | N/A | – | Power | GND |
31 | RF_BG | - | N/A | N/A | N/A | Hi-Z | RF | 2.4 GHz RF TX, RX |
32 | nRESET | - | N/A | N/A | N/A | Hi-Z | I | RESET input for the device. Active low input. Use RC circuit (100 kΩ || 0.01 µF) for power on reset (POR). |
33 | VDD_PA_IN | - | N/A | N/A | N/A | Hi-Z | Power | Power supply for the RF power amplifier (PA) |
34 | SOP1 | - | N/A | N/A | N/A | Hi-Z | – | SOP[2:0] used for factory restore. Add 100-kΩ pulldown to ground. See Section 9.7. SOP1 used for 5 GHz switch control |
35 | SOP0 | - | N/A | N/A | N/A | Hi-Z | – | SOP[2:0] used for factory restore. Add 100-kΩ pulldown to ground. See Section 9.7. SOP0 used for 5GHz switch control |
36 | LDO_IN1 | - | N/A | N/A | N/A | Hi-Z | Power | Input to internal LDO |
37 | VIN_DCDC_ANA | - | N/A | N/A | N/A | Hi-Z | Power | Power supply for the DC/DC converter for analog section |
38 | DCDC_ANA_SW | - | N/A | N/A | N/A | Hi-Z | Power | Analog DC/DC converter switch output |
39 | VIN_DCDC_PA | - | N/A | N/A | N/A | Hi-Z | Power | PA DC/DC converter input supply |
40 | DCDC_PA_SW_P | - | N/A | N/A | N/A | Hi-Z | Power | PA DC/DC converter switch output +ve |
41 | DCDC_PA_SW_N | - | N/A | N/A | N/A | Hi-Z | Power | PA DC/DC converter switch output –ve |
42 | DCDC_PA_OUT | - | N/A | N/A | N/A | Hi-Z | Power | PA DC/DC converter output. Connect the output capacitor for DC/DC here. |
43 | DCDC_DIG_SW | - | N/A | N/A | N/A | Hi-Z | Power | Digital DC/DC converter switch output |
44 | VIN_DCDC_DIG | - | N/A | N/A | N/A | Hi-Z | Power | Power supply input for the digital DC/DC converter |
45 | DIO31 | 31 | Y | Y | Y | Hi-Z | – | Network Scripter I/O |
46 | DCDC_ANA2_SW_N | - | N/A | N/A | N/A | Hi-Z | Power | Analog2 DC/DC converter switch output –ve |
47 | VDD_ANA2 | - | N/A | N/A | N/A | Hi-Z | Power | Analog2 power supply input |
48 | VDD_ANA1 | - | N/A | N/A | N/A | Hi-Z | Power | Analog1 power supply input |
49 | VDD_RAM | - | N/A | N/A | N/A | Hi-Z | Power | Power supply for the internal RAM |
50 | UART1_nRTS | 0 | - | - | - | Hi-Z | O | UART host interface (active low) |
51 | RTC_XTAL_P | - | N/A | N/A | N/A | Hi-Z | Analog | 32.768-kHz XTAL_P or external CMOS level clock input |
52 | RTC_XTAL_N | 32 | Y | Y | Y | Hi-Z | Analog | 32.768-kHz XTAL_N or 100-kΩ external pullup for external clock |
53 | DIO30 | 30 | Y | Y | Y | Hi-Z | – | Network Scripter I/O |
54 | VIN_IO2 | N/A | N/A | N/A | Hi-Z | Power | I/O power supply. Same as battery voltage. | |
55 | UART1_TX | 1 | - | - | - | Hi-Z | O | UART host interface. Connect to test point on prototype for Flash programming. |
56 | VDD_DIG2 | - | N/A | Hi-Z | Power | Digital power supply (1.2 V) | ||
57 | UART1_RX | 2 | - | - | - | Hi-Z | I | UART host interface; connect to test point on prototype for Flash programming. |
58 | TEST_58 | 3 | Y | Y | Y | Hi-Z | O | Test signal; connect to an external test point. |
59 | TEST_60 | 4 | Y | Y | Y | Hi-Z | O | Test signal; connect to an external test point. |
60 | TEST_60 | 5 | Y | Y | Y | Hi-Z | O | Test signal; connect to an external test point. |
61 | UART1_nCTS | 6 | - | - | - | Hi-Z | I | UART host interface (active low) |
62 | TEST_62 | 7 | - | - | - | Hi-Z | O | Test signal; connect to an external test point. |
63 | DIO8 | 8 | Y | Y | Y | Hi-Z | Digital input or output | |
64 | DIO9 | 9 | Y | Y | Y | Hi-Z | – | Digital input or output |
65 | GND | - | N/A | N/A | N/A | – | Power | Ground tab used as thermal and electrical ground |