2.2 Pin Details of RNWF02 Module

This section provides details on pin diagrams and pinout table of RNWF02 Module.

Table 2-2. **RNWF02 Module Pinout Table**
Pin Number	Pin Name	Pin Type	Pin Description
0	GND Paddle	P	Thermal ground pad
1	NC	—	No connection
2	I2C_SCL/PA8	I	I2C clock connected to TrustFlex or Trust&GO device. Recommended to connect external pull-up resistor of 1.2K.
3	I2C_SDA/PA9	I/O	I2C data connected to TrustFlex or Trust&GO device. Recommended to connect external pull-up resistor of 1.2K.
4	NMCLR	I	Master clear reset, active-low
5	PTA_WLAN_ACTIVE/PB6	O	PTA interface, WLAN_ACTIVE
6	PTA_BT_PRIO/PB5	I/O	PTA interface, BT_PRIORITY
7	PB7⁽²⁾	I/O	General purpose input output
8	NC	—	No connection
9	GND	P	Ground
10	DFU_Rx/Strap1/PB0	I	For device firmware update receive pin, strap 1 for UART1 host interface selection, Port B0. Recommended to connect to a pull-down resistor of 100K.
11	INT0/PB2/Wake	—	To wake-up the Wi-Fi^® Module from its Deep Sleep (DS) and Extreme Deep Sleep (XDS) mode by the host
12	GND	P	Ground
13	IRQN/PA6	O	Interrupt request (active-low) from the Wi-Fi^® Module to wake-up the host from its Sleep state
14	UART1_TX/PA5	O	UART1 transmit, Host interface
15	UART1_RTS/PA4	O	UART1 Request-to-Send (active low), Host interface
16	UART1_CTS/PA3	I	UART1 Clear-to-Send (active-low), Host interface
17	PA2⁽²⁾	I/O	General purpose input output
18	PA0⁽²⁾	I/O	General purpose input output
19	UART1_RX/PA1	I	UART1 receive, Host interface
20	VDD	P	VDD power supply (3.0-3.6V)
21	SOSCI/PTA_BT_ACTIVE/PB4 ⁽¹⁾	I	Secondary oscillator input for 32.768 KHz external crystal/ PTA Interface BT_ACTIVE
22	SOSCO/PB3	O	Secondary oscillator output
23	VDDIO	P	I/O power supply (1.8-3.6V)
24	TP	P	Test point –1.5V
25	NC	—	No connection
26	DFU_Tx/Strap2/PB1	I	For device firmware update receive pin, strap 2 for UART2 host interface selection, Port B1. Recommended to connect to a pull-down resistor of 100K.
27	UART2_TX/PA7	I/O	UART2 transmit for firmware log
28	GND	P	Ground
29	GND Paddle	P	Thermal ground pad
Note: This pin can be configured either as secondary oscillator input pin or as PTA BT_ACTIVE. The RNWF02 Module does not support both the functionality together. The RNWF02 Module firmware does not support the GPIO functionality at present. In future, this function may be available.