RN4870/71
Bluetooth Low Energy Module
Features
Qualified for Bluetooth SIG v5.0 Core
Specification
Certified to FCC, ISED, CE, KCC, NCC and
SRRC
On-Board Bluetooth Low Energy (BLE) Stack
ASCII Command Interface API over UART
Scripting Engine for Hostless Operation
Compact Form Factor The RN4870/71 family
comes in four different sizes from 6 mm x 8 mm to
12 mm x 22 mm:
- RN4870: 12 mm x 22 mm
- RN4871: 9 mm x 11.5 mm
- RN4870U: 12 mm x 15 mm
- RN4871U: 6 mm x 8 mm
Beacon Private Service for Beacon Services
UART Transparent Service for Serial Data
Applications
Remote Configuration Over-the-Air
Operational
Operating Voltage: 1.9V to 3.6V (3.3V typical)
Temperature Range:
- -20C to +70C (Normal)
- -40C to +85C (Industrial)
Supports UART
Up to Three Pulse Width Modulation (PWM)
Antenna Options
Outputs (only for RN4870)
Chip Antenna Range based on Open Air
Measurements and Phone-Module Connection:
RF/Analog Features
- RN4870: Up to 50 m
ISM Band 2.402 to 2.480 GHz Operation
- RN4871: Up to 10 m
Channels: 0-39
External Antenna Connection via RF Pad
RX Sensitivity: -90 dBm
(RN4870U/RN4871U)
TX Power: 0 dBm
RSSI Monitor
Applications
Health/Medical Devices
MAC/Baseband/Higher Layer Features
Sports Activity/Fitness Meters
Secure AES128 Encryption
Beacon Applications
GAP, GATT, SM, L2CAP and Integrated Public
Internet of Things (IoT) Sensor Tag
Profiles
Remote Control
Customer Can Create up to Five Public and Four
Wearable Smart Devices and Accessories
Private Services
Smart Energy/Smart Home
Keyboard I/O Authentication
Software Configurable Role as Peripheral or
Industrial Control
Central and Client or Server
2016-2019 Microchip Technology Inc. DS50002489D-page 1RN4870/71
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 3
2.0 Specifications ..............................................................................................................................................................................11
3.0 Interface PINs............................................................................................................................................................................. 13
4.0 Physical Dimensions And Attributes ........................................................................................................................................... 15
5.0 Application Reference Circuits ................................................................................................................................................... 25
6.0 ASCII Command API.................................................................................................................................................................. 29
7.0 Supported Services .................................................................................................................................................................... 31
8.0 Antenna Characteristics ............................................................................................................................................................. 33
9.0 Timing Characteristics ................................................................................................................................................................ 35
10.0 Regulatory Approval ................................................................................................................................................................... 37
11.0 Ordering Information .................................................................................................................................................................. 45
The Microchip WebSite ........................................................................................................................................................................ 47
Customer Change Notification Service ................................................................................................................................................ 47
Customer Support................................................................................................................................................................................ 47
Product Identification System............................................................................................................................................................... 49
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