2.1 Pin Details of WINCS02IC

This section provides details on pin diagrams and the pinout table of WINCS02IC.

Table 2-1. WINCS02IC Pinout Table
Pin Number	Pin Name	Pin Type	Description
1	PMU_VDDIO/ PMU_VDDC	P	Input power supply to the on-chip PMU I/O and PMU Core section (3.0V-3.6V, 3.3V typical)
2	VDD15	P	1.5V input supply voltage Connect to 1.5V on-chip PMU output
3	SCK1	I	SPI1, Serial Clock Connect to the Serial Clock of the host device
4	UART1_RX⁽⁶⁾	O	Used for external antenna calibration Connect this signal to a test point or a pin header
5	SDO1	O	SPI1, Serial Data Out Connect to the Serial Data In of the host device
6	CS1	I	SPI1, Chip Select (Active low) Connect to the Chip Select of the host device
7	VDDIO	P	Input supply voltage to I/O Port (3.0-3.6V, 3.3V typical)
8	SDI1	I	SPI1, Serial Data In Connect to Serial Data Out of the host device
9	UART1_TX⁽⁶⁾	I	Used for external antenna calibration Connect this signal to a test point or a pin header
10	INTOUT	O	Interrupt request (Active-low) from the Wi-Fi® module
11	UART2_TX	O	UART2 Transmit signal to print the firmware debug log
12	I2C_SCL1	I/O	I2C Clock to connect Trust&Go Authentication Secure device. Connect an external Pull up resistor, if used
13	I2C_SDA1	I/O	I²C Data to connect Trust&Go Authentication Secure device Connect an external Pull up resistor, if used
14	VDD33	P	Input supply voltage for the Main Power Domain (3.0-3.6V, 3.3V typical)
15	SPI_VDD15	P	1.5V input supply voltage to internal SPI Block Connect to 1.5V on-chip PMU output
16	AFE_VDD15	P	1.5V input supply voltage to RF Analog Front-End Connect to 1.5V on-chip PMU output
17	XTL_VDD15	P	1.5V input supply voltage to primary oscillator section Connect to 1.5V on-chip PMU output
18	XTL_IN	I	40 MHz primary oscillator crystal input
19	XTL_OUT	O	40 MHz primary oscillator crystal output
20	SYN_SD_VDD15	P	1.5V input supply voltage to RF Synthesizer/SD Connect to 1.5V on-chip PMU output
21	SYN_PLL_VDD15	P	1.5V Input supply voltage to Synthesizer/PLL Connect to 1.5V on-chip PMU output
22	SYN_VCO_VDD15	P	1.5V input supply voltage to RF Synthesizer/VCO Connect to 1.5V on-chip PMU output
23	SPI_FE_VDD15	P	1.5V input supply voltage to RF Front-End/SPI Connect to 1.5V on-chip PMU output
24	RXR_RIQ_VDD15	P	1.5V input supply voltage to RF IQ Mixer/RXR Connect to 1.5V on-chip PMU output
25	RXR_LNA2_VDD15	P	1.5V input supply voltage to LNA stage-2 Connect to 1.5V on-chip PMU output
26	RXR_LNA1_VDD15	P	1.5V input supply voltage to LNA stage-1 Connect to 1.5V on-chip PMU output
27	TRS_RF	I/O	RF transmit/receive
28	TXR_HPA_VDD33	P	Input power supply to High-Power Amplifier (HPA) on the Transmitter (3.0-3.6V, 3.3V typical)
29	TXR_HPA_VDD33	P
30	TXR_PPA_VDD33	P	Input power supply to Pre-Power Amplifier (PPA) on the Transmitter (3.0-3.6V, 3.3V typical)
31	TXR_UMX_VDD15	P	1.5V input supply voltage to RF Upconvertor Mixer/TXR Connect to 1.5V on-chip PMU output
32	BB_VDD15	P	1.5V input supply voltage to RF Base Band section Connect to 1.5V on-chip PMU output
33	MSB_EXTRA_48K	O	RF calibration resistor, connect a pull-down resistor of 48.7K with 1% tolerance
34	DFU_RX/STRAP1	I/O	Device Firmware Update, receive signal
34	DFU_RX/STRAP1	I/O	Host interface configuration strapping1 pin. Connecting to a pull-up resistor of 10K is recommended.
35	DFU_TX/STRAP2	I/O	Device Firmware Update, transmit signal
35	DFU_TX/STRAP2	I/O	Host interface configuration strapping2 pin. Connecting to a pull-up resistor of 10K is recommended.
36	MCLR	I	Master Clear Reset Input (Active low)
37	AVDD	P	Input power supply to Analog Block (3.0-3.6V, 3.3V typical)
38	Reserved⁽⁷⁾	I/O	Reserved pin Connect to an I/O pin (tri-stated) of a host device or to an external switch for future use
39	RTCC_OSC_OUT⁽⁵⁾	O	32.768 KHz RTCC oscillator output
40	RTCC_OSC_IN/PTA_BT_ACTIVE⁽⁴⁾⁽⁵⁾	I	32.768 KHz RTCC Oscillator input
40	RTCC_OSC_IN/PTA_BT_ACTIVE⁽⁴⁾⁽⁵⁾	I	PTA interface, Bluetooth® Coexistence device active indication input to WINCS02IC
41	VDD33	P	Input supply voltage for the Main Power Domain (3.0-3.6V, 3.3V typical)
42	PTA_BT_PRIO	I	PTA interface, Bluetooth Coexistence device priority indication input to WINCS02IC.
43	PTA_WLAN_ACTIVE	O	PTA interface, WINCS02IC WLAN active indication output to Bluetooth Coexistence device
44	Reserved	I/O	Reserved pin Do not connect.
45	VDD33	P	Input supply voltage for the Main Power Domain (3.0-3.6V, 3.3V typical)
46	PMU_MLDO_OUT⁽³⁾	P	1.5V output of on-chip PMU MLDO
47	PMU_VDDP	P	Input power supply to the on-chip PMU (3.0-3.6V, 3.3V typical)
48	PMU_BK_LX	P	1.5V output of on-chip PMU Buck Regulator Connect to an external LC filter (L = 4.7 uH and C = 10 uF)
49	GND	P	Thermal ground paddle
Note: Refer to the reference design package for exact pin mapping and signal connection. WINCS02IC does not support GPIO functionality. All the pins are reserved. This is for internal use only. Do not connect any external circuits. This pin can be used either as an oscillator input pin or as PTA BT_ACTIVE. Both functionalities cannot be supported simultaneously. Current firmware does not support the RTCC oscillator function; it is recommended to have an option to mount the RTCC oscillator in the design to upgrade with the future version of firmware releases. For more details, refer to the WINCS02 Module External Antenna Calibration Guide (DS50003753). Do not leave this pin unconnected. Follow the directions in the Pin Description column for future upgrades.