Datasheet RN42, RN42N (Microchip) - 3

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RN42/RN42N 1.0 DEVICE OVERVIEW FIGURE 1-1: RN42/RN42N TO MCU INTERFACE
The RN42/RN42N module is a small form factor, low- power, class 2 Bluetooth radio that is ideal for designers who want to add wireless capability to their products without spending significant time and money developing Bluetooth-specific hardware and software. The RN42/RN42N supports multiple interface protocols, is simple to design in, and is fully certified, making it a complete embedded Bluetooth solution. With its high-performance, PCB trace antenna (RN42) or external antenna (RN42N), and support for Bluetooth EDR, the RN42/RN42N delivers up to a 3- Mbps data rate for distances up to 10 meters.
1.1 MCU Interface
The RN42/RN42N module is managed through ASCII commands via the UART and/or PIO signals. A micro- controller unit (MCU) or host processor sends com- Table 1-1, Table 1-2, Table 1-3, Table 1-4, and Table 1- mands to configure module features, read status, and 5 provide the module’s environmental conditions, elec- manage Bluetooth data connections. trical characteristics, dimensions, radio characteristics, As shown in Figure 1-1, the UART TX and RX are and digital I/O characteristics. required to communicate with module, and transfer data across Bluetooth SPP connection.
1.2 ASCII Command and Data
Connecting the hardware flow control lines CTS and
Interface
RTS is highly recommended for applications that transmits a continuous stream of data. The “Bluetooth Data Module Advanced User’s Guide” provides a complete description of the ASCII command The module can be configured locally via the UART or and data interface for the RN42/RN42N module. over-the-air. To support instant cable replacement, auto-discovery/pairing does not require software con- figuration. Additionally, the module supports auto-con- nect master, I/O pin (DTR), and character-based trigger modes.
TABLE 1-1: ENVIRONMENTAL CONDITIONS Parameter Value
Temperature Range (Operating) -40o C ~ 85o C Temperature Range (Storage) -40o C ~ 85o C Relative Humidity (Operating) 90% Relative Humidity (Storage) 90% Moisture Sensitivity Level 1
TABLE 1-2: ELECTRICAL CHARACTERISTICS Parameter Min. Typ. Max. Units
Supply Voltage (DC) 3.0 3.3 3.6 V Average Power Consumption Radio On (Discovery or Inquiry Window Time)(1) — 40 — mA Connected Idle (No Sniff) — 25 — mA Connected Idle (Sniff 100 ms) — 12 — mA Connected with Data Transfer 40 45 50 mA Deep Sleep Idle Mode — 26 — A
Note 1:
This characteristic applies if, in Slave mode, there are bursts of radio on time that vary with the windows. The window setting determines the average current.  2015 Microchip Technology Inc. DS50002328A-page 3 Document Outline Class 2 Bluetooth® Module with EDR Support Table of Contents 1.0 Device Overview 1.1 MCU Interface 1.2 ASCII Command and Data Interface TABLE 1-1: Environmental Conditions TABLE 1-2: Electrical Characteristics TABLE 1-3: Module Dimensions TABLE 1-4: Radio Characteristics TABLE 1-5: Digital I/O Characteristics TABLE 1-6: Pin Description 2.0 Application Information 2.1 Reset Circuit 2.2 Factory Reset Using GPIO4 2.3 Connection Status TABLE 2-1: GPIO5 Status TABLE 2-2: GPIO2 Status 2.4 Module Mounting Details 2.5 External Antenna Types (RN42N) 2.6 HCI Mode 2.7 Soldering Recommendations 2.8 SPI Interface 2.9 Bluetooth SIG QDID 2.10 Application Schematic 3.0 Regulatory Approval 3.1 United States 3.2 Canada 3.3 Europe TABLE 3-1: RN42 European Compliance Testing 3.4 Australia 3.5 New Zealand 3.6 Japan 3.7 Korea 3.8 Taiwan 4.0 Ordering Information TABLE 4-1: Ordering Information(1) Worldwide Sales and Service