No Pin Name
F2 SD_DAT1
F3 1 UART_SOUT 4
IO8 3
BT_FREQ 5
F4 1 UART_SIN 4
IO9 3
BT_STATE 5
F5 1 UART_RTS 4
IO11 3
BT_REQ 5
F6 IO12
F7 CNTL1
F8 CNTL0
F9 GND
G1 SD_DAT2
G2 SD_DAT3
G3 VIOSD
G4 VIO
G5 1 UART_CTS 4
IO10 3
BT_GRANT 5
G6 IO13
G7 VIORF
G8 DNC
G9 GND
EP1 EPAD1
EP2 EPAD2
PAN9026 Wi-Fi/BT Module
2 Overview
Pin Type Description
Digital I/O
For SDIO specific terminals SDIO Pins Function
Output Signal Serial data output to peripheral device
Digital I/O
General Purpose IO – GPIO[8]
Input Signal Information BT using channel which overlaps WLAN channel or not
Input signal Serial data input to peripheral device
Digital I/O
General Purpose IO – GPIO[9]
Input signal Information BT_REQ priority (1- or 2-bit) and direction BT RX/TX
Output signal Request-to-Send output to peripheral device
Digital I/O
General Purpose IO – GPIO[11]
Input signal BT device request access to medium
Digital I/O
General Purpose IO – GPIO[12]
Output signal Do not connect
Input signal
Keep open (DNC) if using SDIO interface for BT or connect with
100 k to GND if using UART interface for BT Control Pin
Function
Ground pin Connect to ground
Digital I/O
For SDIO specific terminals SDIO Pins Function
Digital I/O
For SDIO specific terminals SDIO Pins Function
Power
1.8 V or 3.3 V Digital I/O SDIO power supply
Power
1.8 V or 3.3 V power supply for General Purpose IO, if using VIO
3.3V disable the internal 32.768 kHz crystal oscillator (Pin No B4)
Input signal Clear-to-send input from peripheral device
Digital I/O
General Purpose IO – GPIO[10]
Output signal Indicate permission to transmit, low BT can transmit
Digital I/O
General Purpose IO – GPIO[13]
Power
3.0 V – 3.6 V (typ. 3.3 V) power supply connection
NC
Do not connect
Ground pin Connect to ground
Thermal pin Connect to ground
Thermal pin Connect to gorund
4 UART mode: After the dedicated firmware download, the pin is used as Host Controller Interface (HCI) for Bluetooth.
5 Bluetooth External Coexistence Mode: After enabling the mode by host command, the pin is used as Bluetooth external
Coexistence Interface.
Product Specification Rev. 1.1
Page 10