RN4678 Bluetooth Dual Mode Module Features Bluetooth Classic (BR/EDR) and Low Energy (LE) Certified to FCC, ISED, MIC, KCC, NCC and SRRC Radio Regulations European Radio Equipment Directive (RED) Assessed Radio Module Qualified for Bluetooth SIG v5.0 Core Specification Transparent UART mode for Seamless Serial Data over Bluetooth Classic using Serial Port Profile (SPP) and Bluetooth Low Energy (BLE) using Generic Attribute (GATT) Profile Easily Programmable through ASCII Commands and Easily Configurable with Available PIC MCU Driver Library Firmware can be Upgraded in the Field over UART (Flash version) MAC/Baseband/Higher Layer Features Integral Chip Antenna (RN4678) Integrated Crystal, Internal Voltage Regulator and Secure AES128 Encryption Matching Circuitry Bluetooth Classic: GAP, SPP, SDP, RFCOMM and Available Configurable I/O Pins for Control or L2CAP Status Indication Bluetooth Low Energy: GAP, GATT, ATT, SMP Supports Apple iPod Accessory Protocol and L2CAP (iAP2) (only RN4678APL) Supports Bluetooth LE Secure Connections Applications Bluetooth LE Data Packet Length Extension Internet of Things (IoT) Small and Compact Surface Mount Module Secure Payment Castellated SMT Pads for Easy and Reliable PCB Home and Security Mounting Health and Fitness Ideal for Portable Battery-Operated Devices Industrial and Data Logger LED Lighting (16 configurations) RF/Analog Description Frequency: 2.402 GHz to 2.480 GHz RX Sensitivity: -90 dBm (BR/EDR), -92 dBm (LE) The RN4678 module is a fully certified, Bluetooth v5.0 Class 2 Output Power (+1.5 dBm typical) compliant (BR/EDR/LE) Dual mode module, available for customers to easily add Dual mode Bluetoot h Data Throughput wireless capability to their products. The RN4678 is built around Microchips IS1678 Bluetooth Dual mode Data Throughput at 1 Mbps UART Baud Rate: chip. Refer to Section 8.0 Ordering Information. BR/EDR: up to 32 Kbytes/s The RN4678 provides a convenient method for cable LE: up to 7 Kbytes/s replacement for smartphones or tablets for data Data Throughput at 115200 bps UART Baud Rate transfer and control based on the Bluetooth protocols . BR/EDR: up to 10 Kbytes/s Data transfer is achieved through the Bluetooth link by LE: up to 6 Kbytes/s sending or receiving data through SPP in Bluetooth (BT) Classic mode and through Transparent UART i n Operating Conditions the BLE mode. The ASCII interface provides an easy way to learn the operation and to integrate the module Operating Voltage Range: 3.3V to 4.2V with any microprocessor or microcontroller (MCU) with Operating Temperature Range: -20C to +70C a UART interface. 2016-2021 Microchip Technology Inc. DS50002519F-page 1RN4678 Table of Contents 1.0 Device Overview .............................................................................................................................................................................. 3 2.0 Application Information..................................................................................................................................................................... 7 3.0 Electrical Characteristics................................................................................................................................................................ 15 4.0 Radio Characteristics..................................................................................................................................................................... 19 5.0 Physical Dimensions...................................................................................................................................................................... 20 6.0 Reflow Profile................................................................................................................................................................................. 23 7.0 Module Placement ......................................................................................................................................................................... 24 8.0 Ordering Information ...................................................................................................................................................................... 27 9.0 Regulatory Approval....................................................................................................................................................................... 28 Appendix A: Revision History............................................................................................................................................................... 33 The Microchip Website ........................................................................................................................................................................ 34 Customer Change Notification Service ............................................................................................................................................... 34 Customer Support ............................................................................................................................................................................... 34 Product Identification System ............................................................................................................................................................. 35 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. 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