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RN42NHCI Datasheet(PDF) 3 Page - Microchip Technology |
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RN42NHCI Datasheet(HTML) 3 Page - Microchip Technology |
3 / 26 page 2015 Microchip Technology Inc. DS50002328A-page 3 RN42/RN42N 1.0 DEVICE OVERVIEW 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- mands to configure module features, read status, and manage Bluetooth data connections. As shown in Figure 1-1, the UART TX and RX are required to communicate with module, and transfer data across Bluetooth SPP connection. Connecting the hardware flow control lines CTS and RTS is highly recommended for applications that transmits a continuous stream of data. The module can be configured locally via the UART or 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. FIGURE 1-1: RN42/RN42N TO MCU INTERFACE Table 1-1, Table 1-2, Table 1-3, Table 1-4, and Table 1- 5 provide the module’s environmental conditions, elec- trical characteristics, dimensions, radio characteristics, and digital I/O characteristics. 1.2 ASCII Command and Data Interface The “Bluetooth Data Module Advanced User’s Guide” provides a complete description of the ASCII command and data interface for the RN42/RN42N module. 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. |
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