RN41 datasheet(4/28 Pages) MICROCHIP

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RN41/RN41N

DS50002280A-page 4

 2014 Microchip Technology Inc.

1.0

DEVICE OVERVIEW

The RN41/RN41N module is a small form factor, low-

power, class 1 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

RN41/RN41N

supports

multiple

interface

protocols, is simple to design in, and is fully certified,

making it a complete embedded Bluetooth solution.

With its high-performance, chip antenna (RN41) or

external antenna (RN41N), and support for Bluetooth

EDR, the RN41/RN41N delivers up to a 3-Mbps data

rate for distances up to 100 meters.

1.1

MCU Interface

The RN41/RN41N module is managed through ASCII

commands via the UART and/or PIO signals. A MCU

(micro-controller-unit) or host processor sends com-

mands to module to configure 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:

RN41/RN41N 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 Command Reference and

Advanced Information User’s Guide” provides a com-

plete description of the ASCII command and data inter-

face for the RN41/RN41N 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

TABLE 1-2:

ELECTRICAL CHARACTERISTICS

Parameter

Min.

Typ.

Max.

Units

Supply Voltage (DC)

3.0

3.3

3.6

RX Supply Current

—

TX Supply Current

—

100

Average Power Consumption

Standby/Idle (Default Settings)

—

Connected (Normal Mode)

—

Connected (Low-Power Sniff)

—

Standby/Idle (Deep Sleep Enabled)

250

2.5

—

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