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LM961-0651
Bluetooth Module, Bluetooth 5.0, Class 1, 3 Mbps, -92 dBm, 5 V, LM961 Series
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LM TECHNOLOGIES
- Product type: Bluetooth Modules & Adaptors
- SVHC: No SVHC (17-Dec-2015)
- Interfaces: I2C, UART, USB
- Product Range: LM961 Series
- Certifications: -
- Bluetooth Class: Class 1
- Bluetooth Version: Bluetooth 5.0
- Supply Voltage Range: 5V
- Receiver Sensitivity Rx: -92 dBm
- Operating Temperature Range: -40 °C to 85 °C
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 15.57 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
Page 1 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) Revised 22/JAN/2021 Datasheet Version 1.4 Ordering Options See last page **==> picture [25 x 6] intentionally omitted <==** **----- Start of picture text -----**<br> 18.9mm<br>**----- End of picture text -----**<br> **==> picture [27 x 6] intentionally omitted <==** **----- Start of picture text -----**<br> 2.55mm<br>**----- End of picture text -----**<br> **==> picture [27 x 5] intentionally omitted <==** **----- Start of picture text -----**<br> 12.71mm<br>**----- End of picture text -----**<br> ## **Features** Fully integrated module with no additional components required Class 1 Tx Out Power I2C, UART and USB 2.0 Low Power Consumption Individual PWM channels (3 on dedicated LED pads) IC Antenna Onboard - 6 digital and 3 analogue I/O Over-the-Air Upgrade (OTAU) available - 18.9mm x 12.71mm x 2.55mm SMT Side and Bottom Pads for easy production RoHS, REACH and WEEE Compliant Solution Applications available including SPP with GAP Central, SPP or GAP Peripheral and SPP to Serial Bridge ## **Overview** (master) or GAP Peripheral device. This allows your embedded system to wirelessly communicate with other nearby Bluetooth® v2.0, v2.1 and Bluetooth® v4.0, v4.1, v5.0 enabled devices (e.g. iOS and Android). The LM961 is also ideal for streaming high quality data and establishing Bluetooth® low energy connections. This single core standalone module combines a Bluetooth® low energy and v2.0, v2.1 radio using a dual mode Bluetooth® 5.0 stack, plus a microcontroller unit with an 8 Mbit flash memory for running the application. It also incorporates 29 pin outs, including I2C, UART and USB for interfacing with sensors and many other peripheral devices. It’s SMT side and bottom pads allow for easy manufacture and placement within your product. module. We also offer Bluetooth® Dual Mode demo applications, which can be customised to your specification. The module can be used as a bridge between Bluetooth® v2.0, v2.1 and Bluetooth® v4.0, v4.1, v5.0 devices, using our SPP to Serial Bridge application. We also offer SPP with GAP Central and SPP or GAP Peripheral applications. +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 2 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## |Wireless|| |---|---| |Bluetooth® Standard|5.0 (Dual Mode)| |Module Type|Standalone (Configurable with AT Commands)| |Profiles|Partial Supported SPP and GATT-Based| |Hardware|| |---|---| |Chipset|Qualcomm| |Antenna|IC Antenna Onboard| |Microcontroller (MCU)|16-bit RISC 80 MHz MCU| |Flash Memory|8 Mbit| |RAM|56 KB (12K x 24-bit)| |Program Interface|SPI| |Interfaces|I2C, UART, USB 2.0, AIO, PIO and PWM| |Power Supply|5V (VCHG/ VBUS) or 2V8 (VBAT)| |Crystal Oscillators|26 MHz| |Development Kit|LM55X| |RF Characteristics|| |Tx Output Power|9.4 dBm (Bluetooth® v2.0, v.2.1) and 10 dBm (Bluetooth® v4.0/v4.1)| |Rx Sensitivity|-87 dBm (Bluetooth® v2.0, v.2.1) and -92 dBm (Bluetooth® v4.0/v4.1)| |Data Rate|Up to 3Mbps| |Frequency|2.4 GHz to 2.485 GHz| |Physical Characteristics|| |Operating Temperature|-40°C to +85°C| |Dimensions (L x W x H)|18.9mm x 12.71mm x 2.55mm| |Weight|0.58g +/- 0.25g tolerance| |Certifications|See our website for this products certifications| |Compliance|RoHS, REACH and WEEE| +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 3 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Firmware** controls the primary operations such as information enquiry, connection/disconnection set up and settings. The LM961 module can be configured via its UART interface from a microcontroller or computer, using MCU software or a serial terminal (e.g. Hercules SETUP utility) respectively. At the start of every power up cycle the LM961 enters the configuration mode. When the LM961 is connected to another Bluetooth device it enters into data mode. In data mode, users can send/receive data between the module and the remote device via UART. To exit data mode, the user can use the escape sequence. If the LM961 responds with “OK” to the escape sequence it enters into the online_command_mode (i.e. the connection is still active, AT commands can be entered via UART or the connection can be dropped). The LM961 can re-enter into data mode by using AT commands. ## **Default Factory Settings** Device Settings UART Settings Discoverable: ON Baud rate : 115200 Device Name: LM961_2_Default Stop bit : ONE Echo of command: ON Parity bits: NONE Response to commands: ON Flow Control: OFF Pairable State: ON Bluetooth® (v1.0 - v3.0) Profile Settings Bluetooth® low energy Settings SPP Role: Dual GAP Role: Central or Peripheral Escape sequence check enabled: YES (dependent on the application) Security Settings Pin: 1234 DPIN: OFF MITM: OFF IOTYPE: No Input Output +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 4 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Bluetooth® Applications** The LM961 module can run full application code for a wide range of industries. This includes the M2M (industrial cable replacement), EPOS, health & fitness and consumer electronics industries. The LM961 modules can run all Bluetooth® applications. Depending on whether the embedded developer requires a Bluetooth® low energy connection, a high-quality data stream Bluetooth® connection or both simultaneously. Alert Tag Health Thermometer Beacon Heart Rate Sensor Blood Pressure Sensor Keyboard & Mouse Cycling Speed and Cadence Sensor Multifunction Steering Wheel Environment Sensor Printer Security Tag - Serial Communication Time Client Temperature and Pressure Weight Scale ## **Firmware Available** SPP with GAP Central - SPP or GAP Peripheral SPP to Serial Bridge +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 5 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Powering** The LM961 can be powered in one of 2 ways: 1) Powered through the VCHG/VBUS (Pin 21) 2) Powered from a Lithium ion / Lithium polymer battery through VBAT (Pin 19) **==> picture [165 x 157] intentionally omitted <==** **----- Start of picture text -----**<br> 29<br>21<br>19<br>11<br>PIN 1 10<br>**----- End of picture text -----**<br> ## **Pin Outs** **==> picture [285 x 241] intentionally omitted <==** **----- Start of picture text -----**<br> GND GND<br>AIO_0 LED_0<br>AIO_1 LED_1<br>AIO_2 LED_2<br>RST USB_P<br>PIO_0 / SCL USB_N<br>GND VBAT_SENSE<br>PIO_1 / SDA CHG_EXT<br>PIO_2 / UART_RX VCHG / VBUS<br>PIO_3 / UART_TX VREGENABLE<br>PIO_4 / UART_RTS PIO_5 / UART_CTS SPI_MISO SPI_CS GND SPI_ENABLE SPI_CLK SPI_MOSI VBAT<br>**----- End of picture text -----**<br> +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 6 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Pin Assignments** |**Pin Assignments**|**Pin Assignments**|||| |---|---|---|---|---| |Pin|Name|Type|Description|Typical| |1|GND|Ground|Common Ground|0V| |2|AIO_0|Input|Analog Input|0V - VDD| |3|AIO_1|Input|Analog Input|0V - VDD| |4|AIO_2|Input|Analog Input|0V - VDD| |5|RST|Input|Reset|0V - VDD| |6|PIO_0 / SCL|I/O|Programmable Input / Output or I2C Serial Clock|0V - VDD| |7|GND|Ground|Common Ground|0V| |8|PIO_1 / SDA|I/O|Programmable Input / Output or I2C Serial Data|0V - VDD| |9|PIO_2 / UART_RX|I/O|Programmable Input / Output or UART Receive|0V - VDD| |10|PIO_3 / UART_TX|I/O|Programmable Input / Output or UART Transmit|0V - VDD| |11|PIO_4 / UART_RTS|I/O|Programmable Input / Output or UART RTS|0V - VDD| |12|PIO_5 / UART_CTS|I/O|Programmable Input / Output or UART CTS|0V - VDD| |13|SPI_MISO|I/O|SPI Master In Slave Out|0V - VDD| |14|SPI_CS|I/O|SPI Chip Select|0V - VDD| |15|GND|Ground|Common Ground|0V| |16|SPI_ENABLE|I/O|SPI Enable (CSR)|0V - VDD| |17|SPI_CLK|I/O|SPI Clock|0V - VDD| |18|SPI_MOSI|I/O|SPI Master Out Slave In|0V - VDD| |19|VBAT|Power|Battery input|2V8| |20|VREGENABLE|Power|Voltage Regulator Enable|1V| |21|VCHG / VBUS|Power|Battery Charger Input/ Positive Power Supply|5V (3V - 6.5V)| |22|CHG_EXT|Power|External Battery Charge Control|0V - 6.5V & 0mA-20mA| |23|VBAT_SENSE|Power|Battery Charger Sense Input|200mV (195mV - 205mV)| |24|USB_N|I/O|USB Negative|0V - VDD| |25|USB_P|I/O|USB Positive|0V - VDD| |26|LED_2|Output|PWM / LED 2|0V - VDD| |27|LED_1|Output|PWM / LED 1|0V - VDD| |28|LED_0|Output|PWM / LED 0|0V - VDD| |29|GND|Ground|Common Ground|0V| +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 7 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Module Block Diagram** **==> picture [333 x 246] intentionally omitted <==** **----- Start of picture text -----**<br> VDD<br>ANT<br>PWM<br>AIO<br>Filter BT_RF<br>SPI (Debug)<br>CSR Chipset UART<br>I C2<br>FLASH<br>8 Mbit USB<br>SIO<br>PIO<br>XTAL<br>26MHz<br>LM961<br>**----- End of picture text -----**<br> +44 (0) 207 428 2647 www.lm-technologies.com/contact LM961 Page 8 of 15 KK ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Physical Dimensions** **==> picture [503 x 580] intentionally omitted <==** **----- Start of picture text -----**<br> Top View<br>Pin 29 20<br>19<br>1.27<br>1.27<br>Pin Spacing<br>_<br>1.27<br>Zz Pin 1 10<br>0.381mm<br>1.981<br>6.20mm<br>18.90mm<br>Front View<br>2.1mm 2.55mm<br>0.8mm e s<br>1.981<br>6.20mm<br>18.90mm<br>Side View<br>2.55mm<br>2.1mm<br>0.8mm 7 o o<br>1.21mm<br>4.41mm<br>12.71mm<br>12.71mm 11.5mm 8.3mm<br>**----- End of picture text -----**<br> +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 9 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **PCB Footprint** **==> picture [515 x 585] intentionally omitted <==** **----- Start of picture text -----**<br> EDGE OF HOST PCB<br>Optimal Placement Position<br>( Optimal )<br>| |lero le looll e fe m e lem bee b e b e ».<br>| al al al al a ll al el i)<br>Pin 1<br>Placement Note<br>NO<br>If the optimal placement position<br>cannot be achieved, ensure METAL<br>there is no metal beneath the<br>highlighted part of module. BENEATH<br>NB THIS<br>Aim to place the module<br>away from interference. AREA<br>(i.e: place the module at the<br>edge of the board.)<br>Pin 1<br>29 20 |<br>19<br>1.27<br>rire 1.27<br>Pin Spacing<br>Pin 1<br>1.70mm<br>10<br>1.0mm<br>6.20mm<br>12.71mm 7.87mm 3.81mm<br>**----- End of picture text -----**<br> 18.90mm +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 10 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **PCB Drying Conditions** Please ref ~~e~~ ## +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 11 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Tape and Reel Packaging** **==> picture [72 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Tape Dimensions<br>**----- End of picture text -----**<br> Reel Dimensions **==> picture [453 x 583] intentionally omitted <==** **----- Start of picture text -----**<br> 20mm 0.15mm 4mm<br>19.9 32mm<br>13.8mm<br>3mm<br>330mm<br>Notes<br>Carton Dimensions (L x W x H):<br>360mm x 290mm x 370mm<br>Quantities<br>1000 modules per Tape<br>4 Boxes per Carton<br>4000 modules per Carton<br>36mm<br>92mm<br>0.32mm<br>**----- End of picture text -----**<br> +44 (0) 207 428 2647 www.lm-technologies.com/contact . Page 12 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Tray Packaging** Tray Dimensions **==> picture [280 x 115] intentionally omitted <==** **----- Start of picture text -----**<br> 8.7mm 10mm<br>LM961 6 X 10<br>SS 4 Ww) = ‘)<br>rrTN 5mm<br>OMo ol joSI | 6.3mm<br>143mm<br>**----- End of picture text -----**<br> **==> picture [22 x 6] intentionally omitted <==** **----- Start of picture text -----**<br> 312mm<br>**----- End of picture text -----**<br> **==> picture [88 x 69] intentionally omitted <==** **----- Start of picture text -----**<br> (—) 13.4mm cS<br>47.4mm<br>**----- End of picture text -----**<br> ## Notes Anti-Static PS Tray, Black . - Electrical Resistance: 1 MΩ< R< 100MΩ . Thickness: T= 0.8 mm Carton Dimensions (L x W x H): ## Quantities - 60 modules per Tray 600 modules per Box 4 Boxes per Carton 2400 modules per Carton - 360mm x 325mm x 160mm +44 (0) 207 428 2647 www.lm-technologies.com/contact . Page 13 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Packaging for Tape & Reel / Tray** The trays/reels are stacked and inserted into an anti-static vacuum bag with a Humidity Indicator Card. On the outside of the bag are labels for Anti-Static, Model Name and Moisture Sensitivity Levels. **==> picture [110 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> Reels are place within a vacuum bag.<br>**----- End of picture text -----**<br> **==> picture [157 x 97] intentionally omitted <==** **----- Start of picture text -----**<br> drying agent<br>Humidity Indicator Card<br>Anti-static aluminium vacuum bag.<br>**----- End of picture text -----**<br> Trays are stacked up with an empty tray on the top. **==> picture [499 x 253] intentionally omitted <==** **----- Start of picture text -----**<br> Model name label<br>4%<br>Anti-static aluminium vacuum bag.<br> box<br>—_— a<br>)<br>box<br>carton<br>LE ee, carton label<br>Each carton contains 4 boxes.<br>**----- End of picture text -----**<br> +44 (0) 207 428 2647 www.lm-technologies.com/contact Page 14 of 15 . ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Datasheet Version Notes** v1.0 13 MAR 2018 Added version notes to datasheet. v1.1 13 MAR 2018 MSL Description text improvement in the PCB Drying Conditions section. v1.1 29 MAR 2018 Datasheet Revision date typo amended. v1.2 04 JUL 2018 MSL Description text improvement in the PCB Drying Conditions section. Packing information addition. v1.3 22 MAY 2019 Updated Bluetooth® core version references. v1.4 22 JAN 2021 Datasheet branding update. +44 (0) 207 428 2647 www.lm-technologies.com/contact . Page 15 of 15 ## **LM961 Bluetooth® 5.0 Dual Mode Module** Standalone (With Embedded Bluetooth® 5.0 Stack) ## **Ordering Options** 961-0650 ## **LM961 Module** MOD SMT PROG BT5.0 D/Mode Fw5.x 9dBm IC ANT PCS 961-0651 961-0652 961-0660 961-0661 961-0662 ## **LM961 Module** MOD SMT PROG BT5.0 D/Mode Fw5.x 9dBm IC ANT TRAY ## **LM961 Module** MOD SMT PROG BT5.0 D/Mode Fw 5.x 9dBm IC ANT T&R ## **LM961 Module** MOD SMT PROG BT5.0 D/Mode Fw5.x 4dBm IC ANT PCS ## **LM961 Module** MOD SMT PROG BT5.0 D/Mode Fw5.x 4dBm IC ANT TRAY ## **LM961 Module** MOD SMT PROG BT5.0 D/Mode Fw 5.x 4dBm IC ANT T&R +44 (0) 207 428 2647 www.lm-technologies.com/contact
Updated at April 28, 2026
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