BT Modules

RFPB-R8762

A highly integrated single-chip 32-bit ARM® Cortex™-M4F CPU Bluetooth 5 with a BT Protocol Stack (LM, LL, L2CAP, GATT, RFCOMM, SPP, and LE), BT Baseband, modem, and BT RF in UART Network interface. The Bluetooth controller complies with Bluetooth core specification v5 and supports dual mode (BR/EDR + Low Energy Controllers).
Support Bluetooth BLE5.0

Features:
Single supply of 3.3V
Simple SMD mounting with UART Interface
Embedded 160KB RAM & 512kB Flash
Dimension (mm) ：10x12x2.9
Operating Temperature -20~＋85℃
Application : Smart Home Appliances, Wearables, ,etc

Product Overview

The ARM® Cortex™-M4F Bluetooth 5.0 Controller is a highly integrated, single-chip solution that supports Bluetooth Low Energy (BLE) 5.0 and classic Bluetooth (BR/EDR). Featuring a 32-bit ARM® Cortex™-M4F CPU, this Bluetooth controller offers exceptional performance with an embedded Bluetooth protocol stack, which includes LM, LL, L2CAP, GATT, RFCOMM, SPP, and LE. It is ideal for smart home appliances, wearables, and other IoT applications requiring efficient Bluetooth connectivity. This solution provides reliable data transfer, low energy consumption, and advanced features to meet modern wireless communication needs.

Key Features

  • Bluetooth Protocol Stack:

    • Fully integrated stack including LM (Link Manager), LL (Link Layer), L2CAP (Logical Link Control and Adaptation Protocol), GATT (Generic Attribute Profile), RFCOMM (Radio Frequency Communication), SPP (Serial Port Profile), and LE (Low Energy) for versatile Bluetooth connectivity.

  • Dual-Mode Bluetooth:

    • Supports both Bluetooth Classic (BR/EDR) and BLE (Low Energy) modes for compatibility with a wide range of devices.

  • Embedded Memory:

    • 160KB RAM and 512KB Flash memory provide efficient storage for Bluetooth and application data.

  • Low Power Consumption:

    • Optimized for low power usage, making it suitable for battery-operated and portable devices.

  • Compact Design:

    • Small form factor (10mm x 12mm x 2.9mm) enables easy integration into a variety of applications.

  • Operating Temperature Range:

    • Capable of operating in a wide temperature range of -20°C to +85°C, making it suitable for a variety of environments.

Applications

  • Smart Home Appliances:
    • Bluetooth connectivity for IoT-enabled home devices like smart thermostats, lights, and security systems.
  • Wearables:
    • Ideal for fitness trackers, smartwatches, and other wearable devices that require low-energy, reliable Bluetooth communication.
  • Other IoT Devices:
    • Can be used in various applications requiring Bluetooth connectivity for data transfer, control, and automation.

Technical Specifications

General Specifications

  • Bluetooth Version: Bluetooth 5.0 (BLE & Classic BR/EDR)
  • CPU: 32-bit ARM® Cortex™-M4F
  • Memory:
    • RAM: 160KB
    • Flash: 512KB
  • Single Power Supply: 3.3V
  • Mounting Type: Surface-Mount Device (SMD)
  • Interface Type: UART
  • Dimensions: 10mm x 12mm x 2.9mm
  • Operating Temperature Range: -20°C to +85°C
  • Compliance: Bluetooth Core Specification v5
  • Compatibility: Supports backward compatibility with Bluetooth v4.x and earlier versions.

Bluetooth Protocol Stack

  • Link Manager (LM): Responsible for managing Bluetooth link setup, security, and connection management.
  • Link Layer (LL): Handles the physical transmission and reception of Bluetooth packets over air.
  • L2CAP (Logical Link Control and Adaptation Protocol): Enables efficient multiplexing of multiple logical channels over Bluetooth.
  • GATT (Generic Attribute Profile): Manages the data exchange between Bluetooth Low Energy devices, enabling standardized communication for IoT devices.
  • RFCOMM (Radio Frequency Communication): Provides serial data communication over Bluetooth.
  • SPP (Serial Port Profile): Emulates serial ports over Bluetooth, allowing devices to communicate over Bluetooth as if using wired connections.
  • LE (Low Energy): Optimizes power consumption for battery-operated devices.

Block Diagram Description

  • ARM Cortex-M4F CPU:

    • The central processing unit (CPU) is responsible for processing data, running the Bluetooth stack, and managing communication protocols. The ARM Cortex-M4F core is optimized for low power and high efficiency, providing the necessary performance for Bluetooth applications.

  • Bluetooth Baseband and Modem:

    • The baseband and modem components are responsible for encoding/decoding data packets, managing link layers, and performing the necessary physical layer tasks. These components handle both Bluetooth Classic and BLE communications.

  • UART Interface:

    • The UART interface enables communication between the chip and external devices such as microcontrollers or sensors. It supports full-duplex communication, allowing fast data transfer and control signals.

  • Memory (RAM & Flash):

    • The embedded memory includes 160KB of RAM for temporary data storage and 512KB of Flash memory for storing firmware, configuration data, and Bluetooth protocol stacks.

  • Bluetooth RF Module:

    • The RF module handles Bluetooth signal transmission and reception. It is designed to provide efficient communication while minimizing power consumption.

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