Datasheet BM78 (Microchip)

BM78 Bluetooth® Dual-Mode Module Features FIGURE 1: BM78 MODULE
• Bluetooth Classic (BR/EDR) and Low Energy (LE) • Certified to FCC, ISED, MIC, KCC, SRRC and NCC Radio Regulations • Radio Equipment Directive (RED) Assessed Radio Module • Bluetooth 5.0 Certified • Transparent UART mode for Seamless Serial Data over UART Interface • Easy to Configure with User Interface (UI) Tool, a Windows®-based Utility or Directly by MCUs • Firmware can be Upgraded in the Field over UART (Flash version only) • Integral Chip Antenna (BM78SPPS5MC2/NC2) or  External Antenna (BM78SPP05MC2/NC2) • Integrated Crystal, Internal Voltage Regulator, and Matching Circuitry • Configurable I/O Pins for Control and Status
MAC/Baseband/Higher Layer
• Supports Apple® iPod® Accessory Protocol • Secure AES128 Encryption (iAP2), (only BM78SPPx5MC2) • Bluetooth 3.0: GAP, SPP, SDP, RFCOMM, and • Supports Bluetooth Low Energy Secure Connec- L2CAP tions • Bluetooth Profiles: GAP, GATT, ATT, SMP, and • Supports Bluetooth Low Energy Data Packet L2CAP Length Extension • Smal and Compact Surface Mount Module
Operating Conditions
• Castellated Surface Mount Pads for Easy and Reliable Host PCB Mounting • Operating Voltage Range: 3.3V to 4.2V • Ideal for Portable Battery-Operated Devices • Operating Temperature: -20ºC to +70ºC • One LED Driver with 16 Step Brightness Control
Applications RF/Analog
• Internet of Things (IoT) • Frequency Spectrum: 2.402 GHz to 2.480 GHz • Secure Payment • Receive Sensitivity: -90 dBm (BR/EDR),  • Home and Security -92 dBm (LE) • Health and Fitness • Class 2 Output Power (+1.5 dBm typical) • Industrial and Data Logger • LED Lighting (16 configurations)
Data Throughput
Data Throughput at 1 Mbps UART Baud Rate: • BR/EDR: up to 32 Kbytes/s • LE: up to 7 Kbytes/s Data Throughput at 115200 bps UART Baud Rate: • BR/EDR: up to 10 Kbytes/s • LE: up to 6 Kbytes/s  2016-2020 Microchip Technology Inc. DS60001380C-Page 1 Document Outline BM78 Features RF/Analog Data Throughput FIGURE 1: BM78 MODULE MAC/Baseband/Higher Layer Operating Conditions Applications General Description Table of Contents Most Current Data Sheet Errata Customer Notification System 1.0 System Overview FIGURE 1-1: Internal Block Diagram of BM78 module TABLE 1-1: Pin Description FIGURE 1-2: BM78SPPS5MC2/NC2 Pin Diagram FIGURE 1-3: BM78SPP05MC2/NC2 Pin Diagram 2.0 Application Information 2.1 System Configuration TABLE 2-1: System Configuration Settings 2.2 Control and Indication I/O Pins TABLE 2-2: CONTROL AND INDICATION I/O PIN ASSIGNMENTS TABLE 2-3: CONFIGURABLE FUNCTIONS AND DESCRIPTIONS 2.3 Status Indication I/O Pins TABLE 2-4: Status Indication 2.4 Power Tree FIGURE 2-1: Power Tree Diagram 2.5 Software Power Button (SW_BTN) FIGURE 2-2: SW_BTN TIMING (HIGH) at Application MODE FIGURE 2-3: SW_BTN TIMING at Access States FIGURE 2-4: SW_BTN TIMING (Low) at Link States 2.6 WAKE-UP FIGURE 2-5: Wake-up Time 2.7 External Reset FIGURE 2-6: Timing waveforms on Reset 2.8 LED Driver FIGURE 2-7: LED Driver 2.9 Host MCU Interface over UART FIGURE 2-8: Power and MCU Interface Example for BM78 module 2.10 Reference Circuit FIGURE 2-9: BM78SPP05MC2/NC2 Reference Circuit FIGURE 2-10: BM78SPP05MC2/NC2 Reference Circuit FIGURE 2-11: BM78SPPS5MC2/NC2 Reference Circuit FIGURE 2-12: BM78SPPS5MC2/NC2 Reference Circuit 3.0 Operating Modes FIGURE 3-1: Operating Mode Configuration 3.1 Auto Pattern Mode FIGURE 3-2: Auto Pattern Mode 3.2 Manual Pattern FIGURE 3-3: State Changes by MCU in Manual Pattern 4.0 Electrical Characteristics Absolute Maximum Ratings TABLE 4-1: Recommended Operating Conditions TABLE 4-2: 3.3V LDO Electrical Parameters TABLE 4-3: PMU LDO TABLE 4-4: SAR-ADC AND Battery Voltage Detector TABLE 4-5: Intensity Controllable LED Driver TABLE 4-6: Power Consumption-Classic TABLE 4-7: Power Consumption-Low Energy 5.0 Radio Characteristics TABLE 5-1: Transmitter Performance TABLE 5-2: Receiver Performance 6.0 Physical Dimensions FIGURE 6-1: BM78SPPS5MC2/NC2 Module Dimensions FIGURE 6-2: BM78SPPS5MC2/NC2 Recommended PCB Footprint FIGURE 6-3: BM78SPPS5MC2/NC2 Host PCB Mounting Suggestion FIGURE 6-4: BM78SPP05MC2/NC2 Module Dimensions FIGURE 6-5: BM78SPP05MC2/NC2 Recommended PCB Footprint FIGURE 6-6: BM78SPP05MC2/NC2 Host PCB Mounting Suggestion 7.0 Reflow Profile Module FIGURE 7-1: Reflow Profile 8.0 Module Placement Guidelines FIGURE 8-1: Module Placement Examples TABLE 8-1: Recommended Antenna FIGURE 8-2: Keep Out Area Recommended for Antenna 8.1 BM78SPPS5MC2/NC2 Ceramic Chip Antenna FIGURE 8-3: BM78SPPS5MC2/NC2 Antenna Radiation Pattern TABLE 8-2: Antenna Radiation Pattern Details 9.0 Ordering Information TABLE 9-1: BM78 Module SKUs Appendix A: Certification Notices TABLE A-1: EUROPEAN COMPLIANCE TESTING Appendix B: Revision History The Microchip WebSite Trademarks Worldwide Sales