BM70/71 Bluetooth Low Energy (BLE) Module FIGURE 1: BM70 MODULE Features Qualified for Bluetooth SIG v5.0 core specification Certified to FCC, ISED, MIC, KCC, NCC, and SRRC radio regulations Certified by European RED Assessed Radio module Compliant to RoHS Supports UART interface Supports transparent UART data service of BLE The BM70 module supports 3-channel pulse- width modulation (PWM) and the BM71 module supports 1-channel PWM Supports Precision Temperature Sensor (PTS) for ambient temperature detection FIGURE 2: BM71 MODULE Supports 12-bit ADC (ENOB=10 or 8 bits) for battery and voltage detection Provides 8-channel ADC for the BM70 module and 5-channel ADC for the BM71 module Features 18 general purpose I/O (GPIO) pins for the BM70 module and 9 GPIO pins for the BM71 module Features integrated 32 MHZ crystal Small and compact surface mount module Castellated surface mount pads for easy and reliable host PCB mounting RF Features ISM band 2.402 GHz to 2.480 GHz operation Antenna Channels: 0 to 39 Integrated chip antenna (BM7xBLES1FC2) Receive Sensitivity: typical -90 dBm (LE) - Refer to 4.0 Antenna, Table 4-1, and Transmit Power: 0 dBm (typical) Table 4-2 for antenna performance Received Signal Strength Indication (RSSI) specifications monitor with 1 dB resolution External antenna connection through RF pad (BM7xBLE01FC2) MAC/Baseband/Higher Layer Features Power Management Secure AES128 encryption Bluetooth 4.2 specification optional features: GAP, Two low power modes supported, with wake-up GATT, SMP, L2CAP and integrated public profile through GPIO or internal timer To create custom GATT services, refer to the Average current: Tx=3.3 mA and Rx=3.2 mA with BM70/71 Bluetooth Low Energy Module Users buck at 3.0V VBAT input and 18.75 ms connection Guide (DS50002542) for details. interval, when transmitting full data packets to achieve a data rate of approximately 8.6 kbps Configurable role as peripheral/central, client/ server 2015-2018 Microchip Technology Inc. DS60001372H-Page 1BM70/71 Operating Conditions Operating voltage range: 1.9V to 3.6V Operating temperature: -40C to +85C Applications Internet of Things (IoT) Secure Payment Wearable Devices Home and Security Health and Fitness Beacons Industrial and Data Logger General Description The BM70/71 module offers BLE solutions for embed- ded applications. It conforms to the Bluetooth 5 core specification to enhance the throughput and security for the IoT applications. It also supports beacon technology to enhance the user experience for the IoT applications, and enables users to control the cloud and receive data without opening the application through a smartphone. The BM70/71 module has an integrated Bluetooth stack and is available in different form factors to optimize space, cost, and RF performance. The power- optimized design minimizes the current consumption and extends battery life for portable and wearable applications. DS60001372H-Page 2 2015-2018 Microchip Technology Inc.