Silicon Laboratories RS9116 User manual

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 1| Page
RS9116 n-Link™ and WiSeConnect™ Wi-Fi® and Dual-Mode Bluetooth® 5
Wireless Connectivity CC0 Module Solutions
Overview
1.1 Features
Wi-Fi
•Compliant to 1x1 IEEE 802.11 a/b/g/n with dual
band (2.4 and 5 GHz) support
•Transmit power up to +18 dBm in 2 GHz and
+13.5 dBm in 5 GHz
•Receive sensitivity as low as -96 dBm in 2 GHz
and -89 dBm in 5 GHz
•Data Rates: 802.11b: Up to 11 Mbps; 802.11g/a:
Up to 54 Mbps; 802.11n: MCS0 to MCS7
•Operating Frequency Range: 2412 MHz –2484
MHz, 4.9 GHz –5.975 GHz
Bluetooth
•Transmit power up to +17 dBm with integrated PA
•Receive sensitivity: LE: -92 dBm, LR 125 Kbps: -
103 dBm
•Compliant to dual-mode Bluetooth 5
•<8 mA transmit current in Bluetooth 5 mode, 2
Mbps data rate
•Data rates: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps,
3 Mbps
•Operating Frequency Range: 2.402 GHz - 2.480
GHz
•Bluetooth 2.1 + EDR, Bluetooth Low Energy 4.0 /
4.1 / 4.2 / 5.0
•Bluetooth Low Energy 1 Mbps, 2 Mbps and Long
Range modes
•Bluetooth Low Energy Secure connections
•Bluetooth Low Energy supports central role and
peripheral role concurrently
•Bluetooth auto rate and auto TX power adaptation
•Scatternet* with two slave roles while still being
visible
RF Features
•Integrated baseband processor with calibration
memory, RF transceiver, high-power amplifier,
balun and T/R switch
•Dual external antenna (diversity supported)
Power Consumption (2.4 GHz)
•Wi-Fi Standby Associated mode current: 102 uA
@ 1 second beacon interval
•Wi-Fi 1 Mbps Listen current: 14 mA
•Wi-Fi LP chain Rx current: 20 mA
•Deep sleep current <1 uA, Standby current (RAM
retention) < 10 uA
Operating Conditions
•Operating supply range: 3.0 V to 3.63 V
•Operating temperature: -40 ºC to +85 ºC
Size
•Small Form Factor: 9.1 x 9.8 x 1.6 mm
Software Operating Modes
•Hosted mode (n-Link™): Wi-Fi stack, Bluetooth
stack and profiles and all network stacks reside on
the host processor
•Embedded mode (WiSeConnect™): Wi-Fi stack,
TCP/IP stack, IP modules, Bluetooth stack and
some profiles reside in RS9116; Some of the
Bluetooth profiles reside in the host processor
Hosted Mode (n-Link™)
•Available host interfaces: SDIO 2.0 and USB HS
•Support for 20 MHz channel bandwidth
•Application data throughput up to 50 Mbps (Hosted
Mode) in 802.11n with 20 MHz bandwidth
•Host drivers for Linux
•Support for Client mode, Access point mode (Up to
16 clients), Concurrent Client and Access Point
mode, and Enterprise Security
•Support for concurrent Wi-Fi, dual-mode
Bluetooth 5
Embedded Mode (WiSeConnect™)
•Available host interface: UART, SPI, and USB
CDC
•Support for Embedded Client mode, Access Point
mode (Up to 8 clients), Concurrent Client and
Access Point mode, and Enterprise Security
•Supports advanced security features: WPA/WPA2-
Personal and Enterprise

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 2| Page
•Integrated TCP/IP stack, HTTP/HTTPS, SSL/TLS,
MQTT
•Bluetooth inbuilt stack support for L2CAP,
RFCOMM, SDP, SPP, GAP
•Bluetooth profile support for GAP, SDP, SPP,
GATT, L2CAP, RFCOMM
•Wireless firmware update and provisioning
•Support for concurrent Wi-Fi, dual-mode
Bluetooth 5
Security
•Accelerators: AES128/256 in Embedded Mode
•WPA/WPA2-Personal, WPA/WPA2 Enterprise for
Client
Software and Regulatory Certification
•Wi-Fi Alliance*
•Bluetooth Qualification*
•Regulatory certifications (FCC, IC, CE/ETSI,
TELEC)*
Evaluation Kit
•Dual Band EVK: RS9116X-DB-EVK1
* For a detailed list of software features and available profiles, refer to the Software Reference Manuals or
contact Silicon Labs for availability.
All power and performance numbers are under ideal conditions.
1.2 Applications
Wearables
Smart Watches, Wristbands, Fitness Monitors, Smart Glasses, etc.
Smart Home
Smart Locks, Motion/Entrance Sensors, Water Leak sensors, Smart plugs/switches, LED lights, Door-bell cameras,
Washers/Dryers, Refrigerators, Thermostats, Consumer Security cameras, Voice Assistants, etc.
Other Consumer Applications
Toys, Anti-theft tags, Smart dispensers, Weighing scales, Blood pressure monitors, Blood sugar monitors, Portable
cameras, etc.
Other Applications (Medical, Industrial, Retail, Agricultural, Smart City, etc.)
Healthcare Tags, Medical patches/pills, Infusion pumps, Sensors/actuators in Manufacturing, Electronic Shelf labels,
Agricultural sensors, Product tracking tags, Smart Meters, Parking sensors, Street LED lighting, Automotive After-
market, Security Cameras, etc.
1.3 Description
Silicon Labs' RS9116 dual band CC0 module provide a comprehensive multi-protocol wireless connectivity solution
including 802.11 a/b/g/n (2.4 GHz and 5 GHz), and dual-mode Bluetooth 5. The modules offer high throughput,
extended range with power-optimized performance. The modules are FCC, IC, and ETSI/CE (including EN 300 328
v2.2.2) certified.

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 3| Page
1.4 Block Diagrams
Figure 1. CC0 Module Block Diagram
Figure 2. RS9116 Connectivity Hardware Block Diagram

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 4| Page
Figure 3. Hosted Software Architecture Figure 4. Embedded Software Architecture
Customer can connect multiple hosts, but only one host interface can be active after power-on.

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 5| Page
Table of Contents
1 Overview.......................................................................................................................................................................1
1.1 Features ....................................................................................................................................................................1
1.2 Applications...............................................................................................................................................................2
1.3 Description.................................................................................................................................................................2
1.4 Block Diagrams.........................................................................................................................................................3
2RS9116 CC0 Module Pinout and Pin Description................................................................................................... 7
2.1 Pin Diagram...............................................................................................................................................................7
2.2 Pin Description ..........................................................................................................................................................8
2.2.1 RF & Control Interfaces...............................................................................................................................................................8
2.2.2 Power & Ground Pins..................................................................................................................................................................8
2.2.3 Host & Peripheral Interfaces.....................................................................................................................................................10
2.2.4 Miscellaneous Pins....................................................................................................................................................................23
3RS9116 CC0 Module Specifications.......................................................................................................................24
3.1 Absolute Maximum Ratings....................................................................................................................................24
3.2 Recommended Operating Conditions ....................................................................................................................24
3.3 DC Characteristics ..................................................................................................................................................25
3.3.1 Reset Pin....................................................................................................................................................................................25
3.3.2 Power Sequence.......................................................................................................................................................................26
3.3.3 Hardware Resetting Sequence after Power On.......................................................................................................................30
3.3.4 Digital Input Output Signals......................................................................................................................................................32
3.3.5 USB............................................................................................................................................................................................32
3.3.6 Pin Capacitances.......................................................................................................................................................................32
3.4 AC Characteristics ..................................................................................................................................................32
3.4.1 Clock Specifications ..................................................................................................................................................................32
3.4.2 SDIO 2.0 Slave..........................................................................................................................................................................34
3.4.3 SPI Slave ...................................................................................................................................................................................35
3.4.4 USB............................................................................................................................................................................................37
3.4.5 UART..........................................................................................................................................................................................37
3.4.6 I2C Master and Slave................................................................................................................................................................37
3.4.7 I2S/PCM Master and Slave.......................................................................................................................................................39
3.4.8 GPIO pins...................................................................................................................................................................................40
3.5 RF Characteristics...................................................................................................................................................41
3.5.1 WLAN 2.4 GHz Transmitter Characteristics ............................................................................................................................41
3.5.2 WLAN 2.4 GHz Receiver Characteristics on High-Performance (HP) RF Chain..................................................................43
3.5.3 WLAN 2.4 GHz Receiver Characteristics on Low-Power (LP) RF Chain...............................................................................44
3.5.4 Bluetooth Transmitter Characteristics on High-Performance (HP) RF Chain........................................................................46
3.5.5 Bluetooth Transmitter Characteristics on Low-Power (LP) 0 dBm RF Chain........................................................................48
3.5.6 Bluetooth Receiver Characteristics on High-Performance (HP) RF Chain............................................................................49
3.5.7 Bluetooth Receiver Characteristics on Low-Power (LP) RF Chain........................................................................................51
3.5.8 WLAN 5GHz Transmitter Characteristics.................................................................................................................................53
3.5.9 WLAN 5GHz Receiver Characteristics.....................................................................................................................................56
3.6 Typical Current Consumption.................................................................................................................................59
3.6.1 3.3 V...........................................................................................................................................................................................59
4RS9116 CC0 Module Detailed Description ............................................................................................................ 62
4.1 Overview..................................................................................................................................................................62
4.2 Module Features .....................................................................................................................................................62
4.2.1 WLAN.........................................................................................................................................................................................62
4.2.2 Bluetooth....................................................................................................................................................................................62
4.2.3 RF Transceiver..........................................................................................................................................................................64
4.2.4 Host Interfaces...........................................................................................................................................................................64
4.2.5 Wireless Coexistence Manager................................................................................................................................................64
4.2.6 Software.....................................................................................................................................................................................64
4.2.7 Security......................................................................................................................................................................................65
4.2.8 Power Management..................................................................................................................................................................65
4.2.9 Low Power Modes.....................................................................................................................................................................66
4.2.10 Memory......................................................................................................................................................................................67
5RS9116 CC0 Module Reference Schematics, BOM and Layout Guidelines..................................................... 68
5.1 SDIO/SPI/UART......................................................................................................................................................68
5.1.1 Schematics.................................................................................................................................................................................68
5.1.2 Bill of Materials...........................................................................................................................................................................70
5.2 USB/USB-CDC........................................................................................................................................................71
5.2.1 Schematics.................................................................................................................................................................................71
5.2.2 Bill of Materials...........................................................................................................................................................................73
5.3 Layout Guidelines ...................................................................................................................................................74
6RS9116 CC0 Module Package Description ...........................................................................................................77

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 6| Page
6.1 Dimensions..............................................................................................................................................................77
6.2 Package Outline...................................................................................................................................................... 77
6.3 Pin Locations...........................................................................................................................................................78
6.4 PCB Landing Pattern ..............................................................................................................................................80
6.4.1 Packing Information of Modules with Package Codes CC0....................................................................................................80
7RS9116 CC0 Module Certification and Ordering Information.............................................................................82
7.1 Certification Information..........................................................................................................................................82
7.2 Compliance and Certification..................................................................................................................................82
7.2.1 Federal Communication Commission Statement....................................................................................................................82
7.2.2 Industry Canada / ISED Statement ..........................................................................................................................................83
7.2.3 CE...............................................................................................................................................................................................84
7.2.4 TELEC........................................................................................................................................................................................84
7.2.5 Qualified Antenna Types...........................................................................................................................................................84
7.2.6 Module Marking Information .....................................................................................................................................................85
7.3 Module Package......................................................................................................................................................86
7.4 Ordering Information...............................................................................................................................................86
8RS9116 CC0 Module Documentation and Support .............................................................................................. 87
8.1 Resource Location ..................................................................................................................................................87
9RS9116 CC0 Module Revision History...................................................................................................................88

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 7| Page
2 RS9116 CC0 Module Pinout and Pin Description
2.1 Pin Diagram
Figure 5. Pin Diagram
NC NC VOUTLDOSOCVINLDOSOCUSB_AVDD_1P1USB_DP USB_DMSDIO_D1
/SPI_MISO
SDIO_CMD/
SPI_CSN
SDIO_CLK/
SPI_CLKGPIO_15 NC GPIO_11
GNDULP_GPIO_1IO_VDD_1VINBCKDC VOUTLDO1P8 ULP_IO_VDDUSB_AVDD_3P3SDIO_D2
/SPI_INTRSDIO_IO_VDDSDIO_D0 /SPI_MOSIGPIO_56GPIO_54GNDGPIO_50
NC UULP_VOUTSCDC_RETNNC GND VOUTBCKDCUSB_VBUS NC NC UART1_RXGPIO_57GPIO_52GPIO_55GPIO_47GPIO_51
ULP_GPIO_0 NC UULP_VOUTSCDCUULP_VBATT_2UULP_VBATT_1UULP_AVDDUSB_IDGND GPIO_7 RF_AVDDGPIO_53GPIO_48GPIO_49GPIO_46
NC ULP_GPIO_8 NC NC UART2_TXULP_GPIO_6PA2G_AVDD UULP_VBAT_GPIO_3 GPIO_12GPIO_10UART1_TX GPIO_6
ULP_GPIO_4GNDULP_GPIO_7JP2JNCGNDGNDGNDGNDUULP_VBAT_GPIO_4
NC NC ULP_GPIO_10JP0JP1 NC GNDGNDGNDGNDGNDGND
POC_IN HOST_BYP_ULP_WAKEUPULP_GPIO_5TRSTGNDPA5G_AVDDVOUTLDOAFEGNDRF_AVDD_BTTXGNDGNDGNDGND
ULP_GPIO_11 POC_OUT AVDD_1P2GNDAVDD_1P9_3P3GNDGNDGNDGNDGNDGNDGND
GNDRESET_N RF_AVDD33 GNDGNDGNDGNDGNDGNDGND NC NC
GNDGNDGNDGNDGNDGNDGNDGNDGND NC
GNDGNDGNDAVDD_1P9_3P3AVDD_1P9_3P3NC NC GNDGNDGNDGNDGND
GNDGND NC NC AVDD_1P9_3P3NC PA5G_AVDDAVDD_1P9_3P3NC NC GND RF_PORT1 GND RF_PORT2
1 2 3 4 5 7 8 9 1 0 1 1 1 2 1 3 1 46
A
B
C
D
E
F
G
H
J
K
L
M
N
GPIO_38
GND RF_VBATT
NC
GND
GND
NC GND
GND
Power Supplies
HostGPIO & Peripherals
GroundNC
MISCELLANEOUS
SDIO_D3
/SPI_ERR_INTR/
USB_CDC_DIS
UULP_VBAT_GPIO_0

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 8| Page
2.2 Pin Description
2.2.1 RF & Control Interfaces
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description
RF_PORT1
N12
NA
Inout
NA
Secondary antenna port, used for Antenna
diversity. If used, connect to Antenna with
a 50 Ω impedance as per the Reference
Schematics. If unused, leave unconnected
RF_PORT2
N14
NA
Inout
NA
Default Antenna port. Connect to Antenna
with a 50 Ω impedance as per the
Reference Schematics
RESET_N
K2
UULP_VBATT_1
Input
NA
Active-low reset asynchronous reset
signal
POC_IN
H1
UULP_VBATT_1
Input
NA
Power On Control Input
This is an input to the chip. It should be
made high only after supplies are valid to
ensure the IC is in safe state until valid
power supply is available.
POC_OUT
J2
UULP_VBATT_1
Ouput
NA
Power On Control Output
This is internally generated. Initially, it is
low. But it becomes high when the
supplies (VBATT, UULP_VOUTSCDC) are
valid.
Table 1. RF & Control Interfaces
2.2.2 Power & Ground Pins
Pin Name
Type
Pin Number
Direction
Description
UULP_VBATT_1
Power
D5
Input
Always-on VBATT Power supply to the UULP domains
UULP_VBATT_2
Power
D4
Input
Always-on VBATT Power supply to the UULP domains

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 9| Page
RF_VBATT
Power
F7
Input
Always-on VBATT Power supply to the RF
VINBCKDC
Power
B4
Input
Power supply for the on-chip Buck
VOUTBCKDC
Power
C5
Output
Output of the on-chip Buck
VINLDOSOC
Power
A4
Input
Power supply for SoC LDO. Connect to VOUTBCKDC as per the
Reference Schematics
VOUTLDOSOC
Power
A3
Output
Output of SoC LDO
VOUTLDO1P8
Power
B5
Output
Output of 1.8V LDO
VOUTLDOAFE
Power
H8
Output
Output of AFE LDO
IO_VDD_1
Power
B3
Input
I/O Supply for GPIOs. Refer to the GPIOs section for details on
which GPIOs have this as the I/O supply.
SDIO_IO_VDD
Power
B9
Input
I/O Supply for SDIO I/Os. Refer to the GPIOs section for details on
which GPIOs have this as the I/O supply.
ULP_IO_VDD
Power
B6
Input
I/O Supply for ULP GPIOs
PA2G_AVDD
Power
E9
Input
Power supply for the 2.4 GHz RF Power Amplifier
PA5G_AVDD
Power
H7, N7
Input
Power supply for the 5 GHz RF Power Amplifier
RF_AVDD
Power
D10
Input
Power supply for the 2.4 GHz RF and AFE. Connect to
VOUTBCKDC as per the Reference Schematics
RF_AVDD_BTTX
Power
H10
Input
Power supply for Bluetooth Transmit circuit. Connect to
VOUTLDOAFE as per the Reference Schematics.
RF_AVDD33
Power
K3
Input
Power supply for the 5 GHz RF
AVDD_1P9_3P3
Power
J5, M4, M5, N5, N8
Input
Power supply for the 5 GHz RF
AVDD_1P2
Power
J3
Input
Power supply for the 5 GHz RF. Connect to VOUTLDOSOC as per
the Reference Schematics.
UULP_VOUTSCDC
Power
D3
Output
UULP Switched Cap DCDC Output
UULP_VOUTSCDC_RE
TN
Power
C2
Output
UULP Retention Supply Output
UULP_AVDD
Power
D6
Input
Power supply for the always-on digital and ULP peripherals. Connect
to UULP_VOUTSCDC as per the Reference Schematics.

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 10 | Page
Table 2. Power and Ground Pins
2.2.3 Host & Peripheral Interfaces
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
GPIO_6
E14
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•I2S_DOUT - I2S interface output data.
•PCM_DOUT - PCM interface output
data.
GPIO_7
D9
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•I2S_CLK - I2S interface clock.
USB_AVDD_3P3
Power
B7
Input
Power Supply for the USB interface
USB_AVDD_1P1
Power
A5
Input
Power supply for the USB core
GND
Ground
B1, B13, C4, D8, F2, F6,
F10, F11, F12, F13, G8,
G10, G11, G12, G13,
G14, H6, H9, H11, H12,
H13, H14, J4, J6, J8, J9,
J10, J11, J12, J13, J14,
K1, K4, K5, K6, K8, K9,
K10, K11, K12, L1, L2,
L3, L4, L6, L9,L10,L11,
L12, L13, M1, M2, M3,
M9, M10, M11, M12,
M13, M14, N1, N2, N11,
N13
GND
Common ground pins

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 11 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
•PCM_CLK - PCM interface clock.
GPIO_8/UART1_RX
C9
IO_VDD_1
Inout
HighZ
Host
Default
Sleep
UART
UART1_RX
- UART Host
interface
serial input.
HighZ
Non UART
HighZ
HighZ
The UART interface is supported only in
WiSeConnect™.
GPIO_9/UART1_TX
E13
IO_VDD_1
Inout
HighZ
Host
Default
Sleep
UART
UART1_TX -
UART Host
interface
serial
output.
HighZ
Non UART
HighZ
HighZ
The UART interface is supported only in
WiSeConnect™.
GPIO_10
E12
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•I2S_DIN: I2S interface input data.
•PCM_DIN - PCM interface input data.
GPIO_11
A14
IO_VDD_3
Inout
HighZ
Default : HighZ.
Sleep: HighZ
This pin can be configured by software to
be any of the following

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 12 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
•I2S_WS: I2S interface Word Select.
•PCM_FSYNC: PCM interface Frame
Synchronization signal.
GPIO_12
E11
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•UART1_RTS - UART interface
Request to Send, if UART Host
Interface flow control is enabled.
The UART interface is supported only in
WiSeConnect™.
GPIO_15
A12
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•UART1_CTS - UART interface Clear
to Send, if UART Host Interface flow
control is enabled.
•UART1_TRANSPARENT_MODE -
UART Host interface Transparent
Mode, Indication that module has
entered into TRANSPERENT_MODE
•TSF_SYNC - Transmit
Synchronization Function signal to
indicate to the Host when a packet is
transmitted. The signal is toggled once
at the end of every transmitted packet.
The UART interface is supported only in
WiSeConnect™.

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 13 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
SDIO_CLK/SPI_CLK
A11
SDIO_IO_VDD
Inout
HighZ
Host
Default
Sleep
SDIO
SDIO_CLK -
SDIO
interface
clock
HighZ
SPI
SPI_CLK -
SPI Slave
interface
clock
HighZ
Non
SDIO,SPI
HighZ
HighZ
The SPI interface is supported only in
WiSeConnect™.
SDIO_CMD/SPI_CSN
A10
SDIO_IO_VDD
Inout
HighZ
Host
Default
Sleep
SDIO
SDIO_CMD
- SDIO
interface
CMD signal
HighZ
SPI
SPI_CSN -
Active-low
Chip Select
signal of SPI
Slave
interface
HighZ
Non
SDIO,SPI
HighZ
HighZ
The SPI interface is supported only in
WiSeConnect™.
SDIO_D0/SPI_MOSI
B10
SDIO_IO_VDD
Inout
HighZ
Host
Default
Sleep
SDIO
SDIO_D0 -
SDIO
HighZ

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 14 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
interface
Data0 signal
SPI
SPI_MOSI -
SPI Slave
interface
Master-Out-
Slave-In
signal
HighZ
Non
SDIO,SPI
HighZ
HighZ
The SPI interface is supported only in
WiSeConnect™.
SDIO_D1/SPI_MISO
A9
SDIO_IO_VDD
Inout
HighZ
Host
Default
Sleep
SDIO
SDIO_D1 -
SDIO
interface
Data1 signal
HighZ
SPI
SPI_MISO -
SPI Slave
interface
Master-In-
Slave-Out
signal
HighZ
Non
SDIO,SPI
HighZ
HighZ
The SPI interface is supported only in
WiSeConnect™.
SDIO_D2/SPI_INTR
B8
SDIO_IO_VDD
Inout
HighZ
Host
Default
Sleep
SDIO
SDIO_D2 -
SDIO
interface
Data2 signal
HighZ

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 15 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
SPI
SPI_INTR -
SPI Slave
interface
Interrupt
Signal to the
Host
HighZ
Non
SDIO,SPI
HighZ
HighZ
The SPI interface is supported only in
WiSeConnect™.
SDIO_D3/SPI_ERR_INT
R/USB_CDC_DIS
A8
SDIO_IO_VDD
Inout
Pullup
Host
Default
Sleep
SDIO
SDIO_D3 -
SDIO
interface
Data3 signal
HighZ
SPI
SPI_ERR_I
NTR - SPI
Bus Error
Interrupt
Signals
HighZ
USB
USB_CDC_
DIS - USB-
CDC Active-
High Disable
Signal
HighZ
Non
SDIO,SPI
HighZ
HighZ
The SPI interface is supported only in
WiSeConnect™.
GPIO_38
E7
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 16 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
GPIO_46
D14
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_47
C13
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_48
D12
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_49
D13
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_50
B14
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_51
C14
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_52
C11
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_53
D11
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_54
B12
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_55
C12
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_56
B11
IO_VDD_1
Inout
HighZ
Default : HighZ
Sleep: HighZ
GPIO_57
C10
IO_VDD_1
Inout
HighZ
Default : HighZ

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 17 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
Sleep: HighZ
ULP_GPIO_0
D1
ULP_IO_VDD
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•WLAN_ACTIVE*: Active-High signal to
indicate to an external Bluetooth IC
that WLAN transmission is active. Part
of the 3-wire coexistence interface.
*This pin is intended to act as
WLAN_ACTIVE for wireless coexistence.
Please contact Silicon Labs to learn about
availability of this feature.
ULP_GPIO_1
B2
ULP_IO_VDD
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•BT_ACTIVE*: Active-High signal from
an external Bluetooth IC that it is
transmitting. Part of the 3-wire
coexistence interface.
*This pin is intended to act as BT_ACTIVE
for Bluetooth coexistence. Please contact
Silicon Labs to learn about availability of
this feature.
ULP_GPIO_4
F1
ULP_IO_VDD
Inout
HighZ
Default : HighZ
ULP_GPIO_5
H4
ULP_IO_VDD
Inout
HighZ
Default : LP_WAKEUP_IN This is LP
Powersave Wakeup indication from
Device
Sleep: HighZ

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 18 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
This pin can be configured by software to
be any of the following
•LP_WAKEUP_IN :This is LP
Powersave Wakeup indication to
Device from HOST
•HOST_WAKEUP_INDICATION : This
is used as indication from Host to dev
that host is ready to take the packet
and Device can transfer the packet to
host. This is supported only in UART
host mode.
The UART interface is supported only
in WiSeConnect™.
ULP_GPIO_6
E6
ULP_IO_VDD
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•WAKEUP_FROM_Dev - Used as a
wakeup indication to host from device
•BT_PRIORITY**: Active-high signal
from an external Bluetooth IC that
indicates that the Bluetooth
transmissions are a higher priority.
*For Wake-on-Wireless, it is
recommended to use an external weak
pull-down or pull-up resistor. It is
recommended to use weak pull-down
resistor in new designs. Software has to
be configured suitably for using either pull-
down or pull-up resistor.
**This pin is intended to act as
BT_PRIORITY for Bluetooth coexistence.
Please contact Silicon Labs to learn about
availability of this feature.

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 19 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
ULP_GPIO_7
F3
ULP_IO_VDD
Inout
HighZ
Default : HighZ
ULP_GPIO_8
E2
ULP_IO_VDD
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•LED0: Control signal to an external
LED.
•(* LED0 functionality currently not
available in WiSeConnect™ modules)
ULP_GPIO_9/
UART2_TX
E5
ULP_IO_VDD
Inout
HighZ
Default : UART2_TX- Debug UART
Interface serial output
Sleep: HighZ
UART2_TX : Debug UART interface serial
output.
ULP_GPIO_10
G3
ULP_IO_VDD
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•I2C_SCL: I2C interface clock.
ULP_GPIO_11
J1
ULP_IO_VDD
Inout
HighZ
Default : HighZ
Sleep: HighZ
This pin can be configured by software to
be any of the following
•I2C_SDA: I2C interface data.
UULP_VBAT_GPIO_0
H2
UULP_VBATT_1
Output
High
Default : EXT_PG_EN
Sleep: SLEEP_IND_FROM_DEV /
EXT_PG_EN

RS9116 CC0 Connectivity Module Datasheet v1.0.10, December 2021
silabs.com | Building a more connected world. Rev 1.0.10 20 | Page
Pin Name
Pin Number
I/O Supply Domain
Direction
Initial State (Power up,
Active Reset)
Description 1,2,3,4
This pin can be configured by software to
be any of the following
•SLEEP_IND_FROM_DEV: This signal
is used to send an indication to the
Host processor. An indication is sent
when the chip enters (logic low) and
exits (logic high) the ULP Sleep mode.
•EXT_PG_EN: Active-high enable
signal to an external power gate which
can be used to control the power
supplies other than Always-ON
VBATT Power Supplies in ULP Sleep
mode.
UULP_VBAT_GPIO_2/
HOST_BYP_ULP_WAK
EUP
H3
UULP_VBATT_1
Input
HighZ
Default : HOST_BYP
Sleep: ULP_WAKEUP
This signal has two functionalities –one
during the bootloading process and one
after the bootloading. During bootloading,
this signal is an active-high input to
indicate that the bootloader should bypass
any inputs from the Host processor and
continue to load the default firmware from
Flash. After bootloading, this signal is an
active-high input to indicate that the
module should wakeup from its Ultra Low
Power (ULP) sleep mode. The bootloader
bypass functionality is supported only in
WiSeConnect™.
UULP_VBAT_GPIO_3
E10
UULP_VBATT_1
Inout
HighZ
Default : HighZ
Sleep: XTAL_32KHZ_IN
/ SLEEP_IND_FROM_DEV
This pin can be configured by software to
be any of the following
•XTAL_32KHZ_IN: This pin can be
used to feed external clock from a