Microchip Technology

The BM20 is a Bluetooth® 5.0 certified ROM module for designers who want to add Bluetooth wireless audio and voice applications to their products. This Bluetooth SIG certified module provides a complete wireless solution with an embedded Bluetooth stack, a printed antenna, and worldwide radio certifications in a compact surface mount package, 29 x 15 x 2.5 mm3. It supports the following Bluetooth profiles: HSP, HFP, SPP, A2DP, and AVRCP. Audio processing for Acoustic Echo Cancellation (AEC) and Noise Reduction is included as well as AAC and SBC decoding. This module includes a analog output that may interface to an external CODEC, DSP, or audio amplifier. Consider designing with the latest Bluetooth audio solution, [BM83](https://www.microchip.com/en-us/product/bm83).

The BM23 is a Bluetooth® 5.0 certified ROM module with stereo digital output for designers who want to add Bluetooth wireless audio and voice applications to their products. This Bluetooth SIG certified module provides a complete wireless solution that includes an embedded Bluetooth stack, a printed antenna, and worldwide radio certifications in a compact surface mount package, 29 x 15 x 2.5 mm3. It supports the following Bluetooth profiles: SPP, A2DP, and AVRCP. Audio processing for Acoustic Echo Cancellation (AEC) and Noise Reduction is included as well as AAC and SBC decoding. This module includes a digital output that may interface to an external CODEC, DSP, or audio amplifier. Consider designing with the latest Bluetooth audio solution, [BM83](https://www.microchip.com/en-us/product/bm83).

The BM64 stereo audio module is a fully-certified Bluetooth 5 module for designers who want to add Bluetooth wireless audio and voice applications to their products. This Bluetooth SIG certified module provides a complete wireless solution with Bluetooth stack, integrated antenna, and worldwide radio certifications in a compact surface mount package. This stereo module has integrated Li-Ion charger and I2S digital audio interface. It supports HSP, HFP, SPP, A2DP (Sink), and AVRCP profiles and AAC and SBC decoding. Bluetooth Low Energy supports standard Generic Access Service, Device Information Service and a proprietary service for data communication. Microchip’s Wireless Concert Technology (WCT) for speakers uses Multi-Speaker (MSPK) firmware to stream A2DP music to multiple speakers from one audio source, such as a smartphone. This unique solution delivers tight synchronization among the speakers to deliver uninterrupted, distributed audio. Use personal sharing groups to easily pair speakers and assign master and slave roles via the Microchip Bluetooth Audio (MBA) Mobile app. Consider using the latest Bluetooth Audio solution, [BM83](https://www.microchip.com/wwwproducts/en/BM83). | | | | | | | --- | --- | --- | --- | --- | | **CPN** | **Shield** | **Class** | **Programmed Firmware** | **Note** | | BM64SPKS1MC1-000**3AA** | Yes | 1 | [DSPK2.1.5](https://ww1.microchip.com/downloads/en/DeviceDoc/BM6x_DSPK_v2.1.5_Package.zip) | Fixed SweynTooth and BIAS vulnerabilities. [See Release Notes.](https://ww1.microchip.com/downloads/en/DeviceDoc/BM6x_DSPK_v2.1.5_Release_Notes.pdf) | | BM64SPKS1MC2-000**3AA** | Yes | 2 | [DSPK2.1.5](https://ww1.microchip.com/downloads/en/DeviceDoc/BM6x_DSPK_v2.1.5_Package.zip) | Fixed SweynTooth and BIAS vulnerabilities. [See Release Notes.](https://ww1.microchip.com/downloads/en/DeviceDoc/BM6x_DSPK_v2.1.5_Release_Notes.pdf) | | BM64SPKS1MC2-0002AA | Yes | 2 | [DSPK2.1.2](https://ww1.microchip.com/downloads/en/DeviceDoc/BM6x_DSPK_v2.1.5_Package.zip) | Bluetooth SIG BR/EDR security patch added(CERT VU#918987). [See Release Notes](https://ww1.microchip.com/downloads/en/DeviceDoc/BM6x%20DSPK%202.1.3%20Release%20Notes.pdf) | | BM64SPKS1MC1-00**M2AA** | Yes | 1 | [MSPK1.3.5](https://ww1.microchip.com/downloads/en/DeviceDoc/BM64%20Software%20&%20Tools%20(MSPKv1.35).zip) | Wireless Concert Technology. See MSPK1.3.5 Release Notes. Latest Firmware: [MSPK1.3.11](https://www.microchip.com/en-us/product/BM64%20MSPK%20v1.3.11); [MSPK1.3.11 Release Notes](https://ww1.microchip.com/downloads/en/DeviceDoc/BM64_MSPK_v1.3.11_Release_Notes.pdf) | | BM64SPKA1MC1-0001AA | No | 1 | DSPK1.1 | Initial Release. Not recommended for new designs | | BM64SPKS1MC1-0001AA | Yes | 1 | DSPK1.1 | Initial Release. Not recommended for new designs | | BM64SPKA1MC2-0001AA | No | 2 | DSPK1.1 | Initial Release. Not recommended for new designs | | BM64SPKS1MC2-0001AA | Yes | 2 | DSPK1.1 | Initial Release. Not recommended for new designs |

The BM70 Bluetooth Low Energy module is designed for easy implementation into a broad range of applications. It delivers up to 2.5x throughput improvement and more secure connections vs. Bluetooth 4.1 based products. Developers can easily interface to the device via a standard UART interface, available on most Microcontrollers and Processors. The BM70 has a completely integrated Bluetooth software stack, and offers a shielded regulatory certified version with built-in antenna. Developers are freed from the complexities of Bluetooth Software and RF development and can simply utilize the BM70 as a wireline replacement. Perfect for IoT (Internet of Things) applications, when interfaced to a BLE enabled smartphone or Bluetooth Internet Gateway, applications can be monitored, controlled and updated from anywhere in the world. The Microchip Bluetooth Data (MBD) mobile app is available to speed up development for both [Android](https://play.google.com/store/apps/details?id=com.microchip.bluetooth.data) and [iOS](https://apps.apple.com/us/app/microchip-bluetooth-data/id1319166097). Microchip's complimentary and confidential [Wireless Check online design review service](https://www.microchip.com/en-us/support/design-help/design-check-services) is available for customers who have selected our products for their application design-in\*. \*The online design review service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/en-us/support/design-help/design-check-services/design-check-services-program-terms-and-conditions) and requires a myMicrochip account. Looking for a chip level solution? Check out the IC solution here [IS1870](https://www.microchip.com/en-us/product/is1870) **Firmware Release Summary, see Software Release Notes for details:** FW 2.04 (online only) - fixed ANSII vulnerabilities and other bugs for IS1870, IS1871, BM70, BM71. BM70BLEx1FC2-0B05BA - FW 2.03 is a maintenance release for IS1870, IS1871, BM70, and BM71. Firmware version 2.0.3 adds new features/ removes limitations in previous release 1.11 and fixes Sweyntooth vulnerability. BM70BLEx1FC2-0B04AA - FW 1.11 - Fixes bug with invalid Bluetooth address. Refer to Errata document for more information. BM70BLEx1FC2-0B03AA - FW 1.06 - Added support for the [BM71](https://www.microchip.com/en-us/product/bm71) among other bug fixes. BM70BLEx1FC2-0002AA - FW 1.03 - Initial Release.

The BM71 is a small form factor, Bluetooth Low Energy module measuring only 9 x 11.5 x 2.1 mm. The BM71 module is designed for easy implementation into a broad range of applications. It delivers up to 2.5x throughput improvement and more secure connections vs. Bluetooth 4.1 based products. Developers can easily interface to the device via a standard UART interface, available on most Microcontrollers and Processors. The BM71 has a completely integrated Bluetooth software stack, and offers a shielded regulatory certified version with built-in antenna. Developers are freed from the complexities of Bluetooth Software and RF development and can simply utilize the BM71 as a wireline replacement. Perfect for IoT (Internet of Things) applications, when interfaced to a BLE enabled smartphone or Bluetooth Internet Gateway, applications can be monitored, controlled and updated from anywhere in the world. The Microchip Bluetooth Data (MBD) mobile app is available to speed up development for both [Android](https://play.google.com/store/apps/details?id=com.microchip.bluetooth.data) and [iOS](https://apps.apple.com/us/app/microchip-bluetooth-data/id1319166097). Microchip's complimentary and confidential [Wireless Check online design review service](https://www.microchip.com/en-us/support/design-help/design-check-services) is available for customers who have selected our products for their application design-in\*. \*The online design review service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/en-us/support/design-help/design-check-services/design-check-services-program-terms-and-conditions) and requires a myMicrochip account. Looking for a chip level solution? Check out the IC solution here [IS1871](https://www.microchip.com/en-us/product/is1871) **Firmware Release Summary, see Software Release Notes for details:** FW 2.04 (online only) - fixed ANSII vulnerabilities and other bugs for IS1870, IS1871, BM70, BM71. BM71BLEx1FC2-0B05BA - FW 2.03 is a maintenance release for IS1870, IS1871, BM70, and BM71. Firmware version 2.0.3 adds new features/ removes limitations in previous release 1.11 and fixes Sweyntooth vulnerability. BM71BLEx1FC2-0B04AA - FW 1.11 - Fixes bug with invalid Bluetooth address. Refer to Errata document for more information. BM71BLEx1FC2-0002AA - FW 1.06 - Initial Release.

The BM78 is a fully-certified Bluetooth® dual-mode (BR/EDR/LE) module for designers who want to easily add dual mode Bluetooth wireless capability to their products. Delivering local connectivity for the Internet of Things (IoT), the BM78 bridges your product to Smart Phones and Tablets for convenient data transfer, control and access to cloud applications. This Bluetooth SIG certified module provides a complete wireless solution with Bluetooth stack on-board, integrated antenna, and worldwide radio certifications in a compact surface mount package, 22 x 12 x 2.4 mm. It supports GAP, SDP, SPP, and GATT profiles. Data is transferred over the Bluetooth link by sending/receiving data via transparent mode over UART, making it easy to integrate with any processor or Microcontroller with a UART interface. Configuration is made easy using a Windows® based GUI or directly via UART by a microcontroller. The Microchip Bluetooth Data (MBD) mobile app is available to speed up development for both [Android](https://play.google.com/store/apps/details?id=com.microchip.bluetooth.data) and [iOS](https://apps.apple.com/us/app/microchip-bluetooth-data/id1319166097). Microchip's complimentary and confidential Wireless Check online design review service is available for customers who have selected our products for their application design-in\*. \*The online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account. **Firmware Release Summary, see Software Release Notes for details:** BM78SPPx5MC2-0006AA - FW 1.38 - Patched vulnerabilities and added features. BM78SPPx5MC2-0004AA - FW 1.35 - Enhancements to UITool configurations and other bug fixes. BM78SPPx5MC2-0002AA - FW 1.20 - Initial Release. Not recommended for new designs. BM78SPPx5NC2-0002AA - ROM 1.00 - Initial Release. Not recommended for new designs.

The BM83 is a Bluetooth® 5.0 certified dual-mode audio module. It is offered in multiple firmware variants, each of which contains an on-board Bluetooth stack and audio profiles and supports 24-bit/96 kHz high-resolution audio formats to enable high-fidelity wireless audio. An integrated Digital Signal Processor (DSP) decodes AAC and SBC codecs and executes advanced audio and voice processing such as Wide-Band (WB) speech, Acoustic Echo Cancellation (AEC) and Noise Reduction (NR). This platform provides offers flexibility in customizing peripheral settings and DSP functionality with the use of a Windows® operating system-based Graphical User Interface (GUI) configuration tool. Our device is engineered for high levels of integration to reduce your engineering Bill of Materials (eBOM). An integrated power amplifier helps achieve longer range, and the embedded mode functionality enables system control without a host MCU. Start playing music and receiving phone calls immediately with our pre-programmed firmware. Maintain product differentiation by deploying new features via USB, UART and Over-the-Air (OTA) firmware upgrades. The BM83SM1-00Ax implements Microchip's proprietary Wireless Concert Technology (WCT) that streams audio to multiple devices from the same audio source. With its tight speaker synchronization, WCT delivers uninterrupted music to a network of speakers for party streaming. The BM83SM1-00Tx module implements A2DP source capability using Audio Transceiver (AT) firmware. This solution enables Bluetooth capability in non-Bluetooth Audio equipment via a dongle design. The BM83 receives audio inputs through Aux-in or I2S pin and streams the audio up to two Bluetooth paired sink devices. A Bluetooth audio sink device receives audio whereas a source device transmits audio to another Bluetooth sink device. A typical example is a smartphone (source) streaming audio to a speaker (sink). See the [IS2083/BM83 Bluetooth® Applications Design Guide](https://ww1.microchip.com/downloads/en/DeviceDoc/00003118B.pdf) for more details on features and additional firmware options for the BM83 products. **Firmware Release Summary:** Firmware for each product is embedded in IS2083 Turnkey Software and Tools package. **BM83SM1-00TA**: * [AT v1.0](https://ww1.microchip.com/downloads/en/DeviceDoc/BM83_AT_v1.0_Release_Notes.pdf): Latest firmware for Audio Transceiver. * See [BM83 Audio Transceiver v1.0 Release Notes](https://ww1.microchip.com/downloads/en/DeviceDoc/BM83_AT_v1.0_Release_Notes.pdf). **BM83SM1-00AB**: * [MSPK2 v1.2](https://ww1.microchip.com/downloads/aemDocuments/documents/WSG/ProductDocuments/SoftwareLibraries/Firmware/IS2083_Turnkey_1.2.0.zip): Latest Firmware for Wireless Concert Technology. * See [BM83 MSPK2 v1.2 Release Notes](https://ww1.microchip.com/downloads/en/DeviceDoc/MSPK2_v1.2_Release_Notes.pdf)[.](http:) **Additional Information:** See the corresponding IC, [IS2083](https://www.microchip.com/en-us/product/IS2083).