RN4678 Bluetooth 4.2 Dual Mode Module Features Bluetooth Classic (BR/EDR) and Low Energy (LE) Certified to FCC, IC, MIC, KCC, and NCC Radio Regulations European R&TTE Directive Assessed Radio Module Bluetooth SIG 4.2 Qualified 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 MAC/Baseband/Higher Layer (Flash version) Secure AES128 Encryption Integral Chip Antenna (RN4678) or External Bluetooth 3.0: GAP, SPP, SDP, RFCOMM and Antenna (RN4678U) L2CAP Integrated Crystal, Internal Voltage Regulator, and Bluetooth 4.2: GAP, GATT, ATT, SMP and L2CAP Matching Circuitry Applications Available Configurable I/O Pins for Control or Internet of Things (IoT) Status Indication Secure Payment Supports Apple iPod Accessory Protocol (iAP2) (only RN4678APL) Home and Security Supports Bluetooth 4.2 LE Secure Connections Health and Fitness Bluetooth 4.2 LE Data Packet Length Extension Industrial and Data Logger Small and Compact Surface Mount Module LED Lighting (16 configurations) Castellated SMT Pads for easy and reliable PCB Description mounting The RN4678/RN4678U module is a fully certified, Blue- Ideal for Portable Battery-Operated Devices tooth version 4.2 module available for customers to RF/Analog easily add dual mode Bluetooth wireless capability to Frequency: 2.402 GHz to 2.480 GHz their products. The RN4678/RN4678U is built around Microchip s IS1678 Bluetooth dual mode chip. Refer to RX Sensitivity: -90 dBm (BR/EDR), -92 dBm (LE) Section 8.0 Ordering Information. Class 2 Output Power (+1.5 dBm typical) The RN4678/RN4678U provides a convenient method Data Throughput for cable replacement for smartphones or tablets for Data Throughput at 1 Mbps UART Baud Rate: data transfer and control based on the Bluetooth protocols. Data transfer is achieved through the BR/EDR: up to 32 Kbps Bluetooth link by sending or receiving data through LE: up to 7 Kbps SPP in Bluetooth (BT) Classic mode and through Data Throughput at 115200 bps UART Baud Rate Transparent UART in the BLE mode. The ASCII BR/EDR: up to 10 Kbps interface provides an easy way to learn the operation LE: up to 6 Kbps and to integrate the module with any microprocessor or Microcontroller (MCU) with a UART interface. The Operating Conditions RN4678/RN4678U parameters can be configured Operating Voltage Range: 3.3V to 4.2V directly through UART by the host MCU. Operating Temperature Range: -20C to +70C 2016 Microchip Technology Inc. DS50002519A-page 1RN4678 Table of Contents 1.0 Device Overview .......................................................................................................................................................................... 3 2.0 Application Information................................................................................................................................................................. 7 3.0 Electrical Characteristics ............................................................................................................................................................ 17 4.0 Radio Characteristics ................................................................................................................................................................. 21 5.0 Physical Dimensions .................................................................................................................................................................. 23 6.0 Reflow profile.............................................................................................................................................................................. 29 7.0 Module Placement...................................................................................................................................................................... 31 8.0 Ordering Information .................................................................................................................................................................. 35 9.0 Regulatory Approval ................................................................................................................................................................... 37 Appendix A: Revision History.............................................................................................................................................................. 43 The Microchip Web Site ....................................................................................................................................................................... 45 Customer Change Notification Service ................................................................................................................................................ 45 Customer Support................................................................................................................................................................................ 45 Product Identification System............................................................................................................................................................... 46 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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