Datasheet RN41, RN41N (Microchip) - 7
| Manufacturer | Microchip |
| Description | Class 1 Bluetooth Module with EDR Support |
| Pages / Page | 28 / 7 — RN41/RN41N. TABLE 1-6:. PIN DESCRIPTION. Pin. Symbol. Type. Description. … |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
RN41/RN41N. TABLE 1-6:. PIN DESCRIPTION. Pin. Symbol. Type. Description. Section 2.8 “SPI Interface”. Section 2.3 “Connection Status”
Model Line for this Datasheet
Text Version of Document
RN41/RN41N TABLE 1-6: PIN DESCRIPTION Pin Symbol Type Description
1 GND Power Ground reference 2 SPI_MOSI DI (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 3 GPIO6 DIO Set Bluetooth master (high = auto-master mode) 4 GPIO7 DIO Set baud rate (high = force 9,600, low = 115K or firmware setting) 5 RESET DI Active-low Reset 6 SPI_CLK DI (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 7 PCM_CLK DIO (Do not connect) PCM interface(1) 8 PCM_SYNC DIO (Do not connect) PCM interface(1) 9 PCM_IN DI (Do not connect) PCM interface(1) 10 PCM_OUT DO (Do not connect) PCM interface(1) 11 VDD Power Positive Supply 12 GND Power Ground reference 13 UART_RX DI UART receive input 14 UART_TX DO UART transmit output 15 UART_RTS DO UART RTS, goes high to disable host transmitter 16 UART_CTS DI UART CTS, if set high, it disables transmitter 17 USB_D+ DIO USB port. 1.5K pullup activated when USB port is ready (~500 ms after reset). 18 USB_D- DIO USB port 19 GPIO2 DIO Status, high when connected, low otherwise. See
Section 2.3 “Connection Status”
. 20 GPIO3 DIO Auto discovery = high 21 GPIO5 DIO Status, toggles based on state, low on connect. See
Section 2.3 “Connection Status”
. 22 GPIO4 DIO Set factory defaults. See
Section 2.2 “Factory Reset Using GPIO4”
. 23 SPI_CSB DI (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 24 SPI_MISO DO (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 25 GND Power Ground reference (RN41N only) 26 RF ANT AIO Antenna, 50-Ohm impedance (RN41N only) 27 GND Power Ground reference (RN41N only) 28 GND Power Ground reference 29 GND Power Ground reference 30 AIO0 AIO (Not used) Optional analog input. 31 GPIO8 DIO UART TX/RX data activity 32 GPIO9 DIO I/O 33 GPIO10 DIO I/O (remote DTR signal) 34 GPIO11 DIO I/O (remote RTS signal) 35 AIO1 AIO (Not used) Optional analog input
Note 1:
Pin numbers 7 through 10 are reserved for future use. 2014 Microchip Technology Inc. DS50002280A-page 7 Document Outline 1.0 Device Overview 1.1 MCU Interface 1.2 ASCII Command and Data Interface TABLE 1-1: Environmental Conditions TABLE 1-2: Electrical Characteristics TABLE 1-3: Module Dimensions TABLE 1-4: Radio Characteristics TABLE 1-5: Digital I/O Characteristics TABLE 1-6: Pin Description 2.0 Application Information 2.1 Reset Circuit 2.2 Factory Reset Using GPIO4 2.3 Connection Status TABLE 2-1: GPIO5 Status TABLE 2-2: GPIO2 Status 2.4 Module Mounting Details 2.5 External Antenna Types (RN41N) TABLE 2-3: Tested External Antenna Types 2.6 HCI Mode 2.7 Soldering Recommendations 2.8 SPI Interface 2.9 Bluetooth SIG QDID 2.10 Application Schematic 3.0 Regulatory Approval 3.1 United States 3.2 Canada 3.3 Europe TABLE 3-1: RN41 European Compliance Testing TABLE 3-2: RN41N European Compliance Testing 3.4 Australia 3.5 New Zealand 4.0 Ordering Information TABLE 4-1: Ordering Information Class 1 Bluetooth® Module with EDR Support Worldwide Sales and Service
1 GND Power Ground reference 2 SPI_MOSI DI (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 3 GPIO6 DIO Set Bluetooth master (high = auto-master mode) 4 GPIO7 DIO Set baud rate (high = force 9,600, low = 115K or firmware setting) 5 RESET DI Active-low Reset 6 SPI_CLK DI (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 7 PCM_CLK DIO (Do not connect) PCM interface(1) 8 PCM_SYNC DIO (Do not connect) PCM interface(1) 9 PCM_IN DI (Do not connect) PCM interface(1) 10 PCM_OUT DO (Do not connect) PCM interface(1) 11 VDD Power Positive Supply 12 GND Power Ground reference 13 UART_RX DI UART receive input 14 UART_TX DO UART transmit output 15 UART_RTS DO UART RTS, goes high to disable host transmitter 16 UART_CTS DI UART CTS, if set high, it disables transmitter 17 USB_D+ DIO USB port. 1.5K pullup activated when USB port is ready (~500 ms after reset). 18 USB_D- DIO USB port 19 GPIO2 DIO Status, high when connected, low otherwise. See
Section 2.3 “Connection Status”
. 20 GPIO3 DIO Auto discovery = high 21 GPIO5 DIO Status, toggles based on state, low on connect. See
Section 2.3 “Connection Status”
. 22 GPIO4 DIO Set factory defaults. See
Section 2.2 “Factory Reset Using GPIO4”
. 23 SPI_CSB DI (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 24 SPI_MISO DO (Optional) Factory diagnostic and test. See
Section 2.8 “SPI Interface”
. 25 GND Power Ground reference (RN41N only) 26 RF ANT AIO Antenna, 50-Ohm impedance (RN41N only) 27 GND Power Ground reference (RN41N only) 28 GND Power Ground reference 29 GND Power Ground reference 30 AIO0 AIO (Not used) Optional analog input. 31 GPIO8 DIO UART TX/RX data activity 32 GPIO9 DIO I/O 33 GPIO10 DIO I/O (remote DTR signal) 34 GPIO11 DIO I/O (remote RTS signal) 35 AIO1 AIO (Not used) Optional analog input
Note 1:
Pin numbers 7 through 10 are reserved for future use. 2014 Microchip Technology Inc. DS50002280A-page 7 Document Outline 1.0 Device Overview 1.1 MCU Interface 1.2 ASCII Command and Data Interface TABLE 1-1: Environmental Conditions TABLE 1-2: Electrical Characteristics TABLE 1-3: Module Dimensions TABLE 1-4: Radio Characteristics TABLE 1-5: Digital I/O Characteristics TABLE 1-6: Pin Description 2.0 Application Information 2.1 Reset Circuit 2.2 Factory Reset Using GPIO4 2.3 Connection Status TABLE 2-1: GPIO5 Status TABLE 2-2: GPIO2 Status 2.4 Module Mounting Details 2.5 External Antenna Types (RN41N) TABLE 2-3: Tested External Antenna Types 2.6 HCI Mode 2.7 Soldering Recommendations 2.8 SPI Interface 2.9 Bluetooth SIG QDID 2.10 Application Schematic 3.0 Regulatory Approval 3.1 United States 3.2 Canada 3.3 Europe TABLE 3-1: RN41 European Compliance Testing TABLE 3-2: RN41N European Compliance Testing 3.4 Australia 3.5 New Zealand 4.0 Ordering Information TABLE 4-1: Ordering Information Class 1 Bluetooth® Module with EDR Support Worldwide Sales and Service
