Data Sheet
Table Of Contents
- 1 Overview and Key Features
- 1.2 Application Areas
- Features and Benefits
- 2 Specifications
- 3 Hardware Specifications
- 3.1 Block Diagram and Pin-out
- 3.2 Pin Definitions
- 3.3 Electrical Specifications
- 4 Functional Description
- 4.1 Power Management (includes brown-out and power on reset)
- 4.2 Clocks and Timers
- 4.3 RF
- 4.4 UART Interface
- 4.5 SPI Bus
- 4.6 I2C Interface
- 4.7 General Purpose I/O, ADC and PWM/FREQ
- 4.8 nRESET Pin
- 4.9 nAutoRUN Pin
- 4.10 RM1xx VSP Service and Modes
- 4.11 Two-Wire SWD Programming/Debug Interface
- 4.12 RM1xx on-board chip antenna characteristics
- 5 Hardware Integration Suggestions
- 6 Mechanical Details
- 7 Application Note for Surface Mount Modules
- 8 FCC and IC Regulatory Statements
- 9 CE Regulatory
- 10 EU Declarations of Conformity
- 11 Ordering Information
- 12 Bluetooth SIG Qualification
RM1xx LoRa/BLE Modules
Datasheet
https://connectivity.lairdtech.com/wireless-
modules/lorawan-solutions
33
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Table 24: Recommended Maximum and minimum temperatures
Specification
Value
Unit
Temperature Inc./Dec. Rate (max)
1~3 °C / Sec
Temperature Decrease rate (goal)
2-4 °C / Sec
Soak Temp Increase rate (goal)
.5 - 1 °C / Sec
Flux Soak Period (Min)
70 Sec
Flux Soak Period (Max)
120 Sec
Flux Soak Temp (Min)
150 °C
Flux Soak Temp (max)
190 °C
Time Above Liquidous (max)
70 Sec
Time Above Liquidous (min)
50 Sec
Time In Target Reflow Range (goal)
30 Sec
Time At Absolute Peak (max)
5 Sec
Liquidous Temperature (SAC305)
218 °C
Lower Target Reflow Temperature
240 °C
Upper Target Reflow Temperature
250 °C
Absolute Peak Temperature
260 °C
8 FCC AND IC REGULATORY STATEMENTS
Model US/FCC CANADA/IC
RM191-SM SQG-RM191 3147A-RM191
The OEM must follow the regulatory guidelines and warnings listed below to inherit Laird’ modular approval.
The RM191-SM holds full modular approvals and has been certified for integration to products only by OEM integrators
under the following conditions:
1. The antenna(s) must be installed such that a minimum separation distance of 30mm is maintained between the
radiator (antenna) and all persons at all times.
2. The transmitter module must not be operating in conjunction with any other antenna or transmitter, except in
accordance with FCC multi-transmitter product procedures.
As long as the two conditions above are met, further transmitter testing will not be required. However, the OEM integrator
is still responsible for testing their end-product for any additional compliance requirements required with this module
installed (for example, digital device emissions, PC peripheral requirements, etc.).
IMPORTANT NOTE: In the event that these conditions cannot be met (for certain configurations or co-location with another
transmitter), then the FCC and Industry Canada authorizations are no longer considered valid and the FCC ID and IC
Certification Number cannot be used on the final product. In these circumstances, the OEM integrator will be responsible
for re-evaluating the end product (including the transmitter) and obtaining a separate FCC and Industry Canada
authorization.
The RM191-SM LoRa transmitter has been designed and approved to operate with the antennas listed below with a
maximum gain of 2 dBi. The required antenna impedance is 50 ohms.