RN-42-SM Roving Networks Inc, RN-42-SM Datasheet - Page 7

• Manufacturer Part Number: RN-42-SM
• Description: MODULE BLUETOOTH V2.1+EDR
• Manufacturer: Roving Networks Inc

Specifications of RN-42-SM

• Frequency: 2.402GHz ~ 2.48GHz
• Data Rate - Maximum: 3Mbps
• Modulation Or Protocol: Bluetooth v2.1+EDR, Class 2 & 3
• Applications: General Purpose
• Power - Output: 4dBm
• Sensitivity: -80dBm
• Voltage - Supply: 3 V ~ 3.3 V
• Current - Receiving: 45mA
• Current - Transmitting: 45mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Wireless Frequency: 2402 MHz to 2480 MHz
• Interface Type: UART
• Data Rate: 921 Kbps
• Modulation: FHSS, GFSK
• Operating Voltage: 3.3 V
• Operating Temperature Range: - 40 C to + 85 C
• Output Power: 4 dBm
• Security: 128 bit
• Technology/ Type: Class 1/Class 2 Bluetooth Socket Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 740-1041

Hardware Connections and Power
Placing 3.3Vdc into the PIO’s outputs will permanently damage the radio modules. The failure mode is short
across GND and VCC. Use a 10K
respectively.
Hardware Communications Connections for Modules
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www.rovingnetworks.com
Make sure to connect a common ground when using the external TX, RX inputs 0 – 3.3Vdc.
For a 3 wire DB-9 interface (tx, rx, gnd only) connect/short CTS to RTS, Factory default is hardware flow
control enabled CTS and RTS connected.
When using a 5.0Vdc Input, PIO’s require a voltage divider. A good choice is 10K ohm series with 20K to
Ground. PIO’s are 0-3.3Vdc not 5 volt tolerant.
RN-41-SM / RN-42-SM TX
RN-41-SM / RN-42-SM RX     TX of the application Micro Controller Unit (MCU)
RN-41-SM / RN-42-SM RTS
RN-41-SM / RN-42-SM CTS     RTS of the application Micro Controller Unit (MCU)
809 University Avenue
•
Los Gatos, CA 95032
RX of the application Micro Controller Unit (MCU)
CTS of the application Micro Controller Unit (MCU)
resistor in series or a 10K
~ 7 ~
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RN-41-SM/RN-42-SM Data Sheet
Tel [phone]
pull up resistor for input and output PIO’s
• [e-mail]
7/12/2010