SWRS225E February 2019 – December 2024 CC3135MOD
PRODUCTION DATA
Table 6-1 describes the CC3135MOD pins.
Digital IOs on the CC3135MOD 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 CC3135MOD 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 CC3135MOD 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) | CC3135 DEVICE PIN NO. | DESCRIPTION | ||
---|---|---|---|---|---|---|---|---|
HOSTLESS MODE | BLE COEX | |||||||
CC_COEX_ OUT | CC_COEX_ IN | |||||||
1 | GND | N/A | N/A | N/A | — | Power | - | GND |
2 | GND | N/A | N/A | N/A | — | Power | - | GND |
3 | DIO10 | Y | Y | Y | — | I/O | 1 | Digital input or output |
4 | nHIB | — | — | — | Hi-Z | I | 2 | 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. |
5 | HOST_SPI_CLK | — | — | — | Hi-Z | I | 5 | Host interface SPI clock |
6 | HOST_SPI_MOSI | — | — | — | Hi-Z | I | 6 | Host interface SPI data input |
7 | HOST_SPI_MISO | — | — | — | Hi-Z | O | 7 | Host interface SPI data output |
8 | HOST_SPI_nCS | — | — | — | Hi-Z | I | 8 | Host interface SPI chip select (active low) |
9 | DIO12 | Y | Y | Y | — | O | 3 | Digital input or output |
10 | DIO13 | Y | Y | Y | — | — | 4 | Digital input or output |
11 | HOST_INTR | — | — | — | Hi-Z | O | 15 | Interrupt output (active high) |
12 | DIO23 | Y | Y | Y | Hi-Z | 16 | Digital input or output | |
13 | FLASH _SPI_MISO | N/A | N/A | N/A | Hi-Z | O | - | External Serial Flash Programming: SPI data out |
14 | FLASH _SPI_CS | N/A | N/A | N/A | Hi-Z | I | - | External Serial Flash Programming: SPI chip select (active low) |
15 | FLASH_SPI_CLK | N/A | N/A | N/A | Hi-Z | I | - | External Serial Flash Programming: SPI clock |
16 | GND | N/A | N/A | N/A | – | Power | - | Ground |
17 | FLASH_SPI_MOSI | N/A | N/A | N/A | Hi-Z | I | - | External Serial Flash Programming: SPI data in |
18 | DIO24 | Y | Y | Y | Hi-Z | 17 | Digital input or output | |
19 | DIO28 | Y | Y | Y | — | — | 18 | Digital input or output |
20 | NC | N/A | N/A | N/A | — | — | - | No Connect |
21 | Reserved | — | — | — | Hi-Z | — | - | No Connect |
22 | DIO29 | Y | Y | Y | Hi-Z | 20 | Digital input or output | |
23 | SOP2 | Y (2) | Y | — | Hi-Z | O | 21 | A 100 kΩ pull down resistor is internally tied to this SOP pin. |
24 | SOP1 | N/A | N/A | N/A | Hi-Z | — | 34 | A 100 kΩ pull down resistor is internally tied to this SOP pin. SOP[2:0] used for factory restore. See Section 8.5. |
25 | GND | N/A | N/A | N/A | — | Power | - | GND |
26 | GND | N/A | N/A | N/A | — | Power | - | GND |
27 | GND | N/A | N/A | N/A | — | Power | - | GND |
28 | GND | N/A | N/A | N/A | — | Power | - | GND |
29 | GND | N/A | N/A | N/A | — | Power | - | GND |
30 | GND | N/A | N/A | N/A | — | Power | - | GND |
31 | RF_ABG | N/A | N/A | N/A | Hi-Z | RF | 27, 28, 31 | 2.4 GHz & 5 GHz RF TX, RX |
32 | GND | N/A | N/A | N/A | — | Power | - | GND |
33 | NC | N/A | N/A | N/A | — | — | - | No Connect |
34 | SOP0 | N/A | N/A | N/A | Hi-Z | — | 35 | A 100 kΩ pull down resistor is internally tied to this SOP pin. SOP[2:0] used for factory restore. See Section 8.5. |
35 | nRESET | N/A | N/A | N/A | Hi-Z | I | 32 | There is an internal 100 kΩ pull-up resistor option from the nRESET pin to VBAT_RESET. Note: VBAT_RESET is not connected to VBAT1 or VBAT2 within the module. The following connection schemes are recommended:
|
36 | VBAT_RESET | N/A | N/A | N/A | Hi-Z | — | 37 | |
37 | VBAT1 | N/A | N/A | N/A | Hi-Z | — | 39 | Power supply for the module, must be connected to battery (2.3 V to 3.6 V) |
38 | GND | N/A | N/A | N/A | — | Power | - | GND |
39 | NC | N/A | N/A | N/A | — | — | - | No Connect |
40 | VBAT2 | N/A | N/A | N/A | Hi-Z | - | 10, 44, 54 | Power supply for the module, must be connected to battery (2.3 V to 3.6 V) |
41 | NC | N/A | N/A | N/A | – | – | - | No Connect |
42 | DIO30 | Y | Y | Y | Hi-Z | – | 53 | Network Scripter I/O |
43 | GND | N/A | N/A | N/A | — | Power | - | GND |
44 | UART1_nRTS | — | — | — | Hi-Z | O | 50 | UART interface to host (request to send) |
45 | NC | N/A | N/A | N/A | — | — | - | No Connect |
46 | UART1_TX | — | — | — | Hi-Z | O | 55 | UART interface to host (transmit) |
47 | UART1_RX | — | — | — | Hi-Z | I | 57 | UART interface to host (receive) |
48 | TEST_58 | Y | Y | Y | Hi-Z | O | 58 | Test signal; connect to an external test point. |
49 | TEST_59 | Y | Y | Y | Hi-Z | I | 59 | Test signal; connect to an external test point. |
50 | TEST_60 | Y | Y | Y | Hi-Z | O | 60 | Test signal; connect to an external test point. |
51 | UART1_nCTS | — | — | — | Hi-Z | I | 61 | UART interface to host (clear to send) |
52 | TEST_62 | — | — | — | Hi-Z | O | 62 | Test signal; connect to an external test point. |
53 | DIO8 | Y | Y | Y | Hi-Z | 63 | Digital input or output | |
54 | DIO9 | Y | Y | Y | Hi-Z | — | 64 | Digital input or output |