RN42N-I/RM Roving Networks, RN42N-I/RM Datasheet - Page 4

• Manufacturer Part Number: RN42N-I/RM
• Description: Bluetooth / 802.15.1 Modules Class2 Bluetooth Mod v2.0+EDR w/o Antenna
• Manufacturer: Roving Networks

Specifications of RN42N-I/RM

• Product Category: Bluetooth / 802.15.1 Modules
• Rohs: yes
• Frequency Band: 2.4 GHz
• Data Rate: 1200 bps to 921 Kbps
• Operating Supply Voltage: 3.3 V
• Output Power: 2 dBm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Modulation Technique: FHSS, GFSK

Figure 2. RN-42/RN-42-N Pinout
SPI_CLOCK
Table 7. Pin Description
www.rovingnetworks.com
PCM_SYNC
SPI_MOSI
PCM_OUT
PCM_CLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Pin
PCM_IN
RESET
GPIO6
GPIO7
GND
GND
VDD
GND
SPI_MOSI
GPIO6
GPIO7
RESET
SPI_CLK
PCM_CLK
PCM_SYNC
PCM_IN
PCM_OUT
VDD
GND
UART_RX
UART_TX
UART_RTS
UART_CTS
USB_D+
USB_D-
Name
35 29 34 33 32 31 28 30
1
2
3
4
5
6
7
8
9
10
11
12
Top View
Ground
Programming only
Set BT master (high = auto-master mode)
Set Baud rate (high = force 9,600, low = 115 K or
firmware setting)
Active-low reset. Hold low for low-power
operation.
Programming only
PCM interface
PCM interface
PCM interface
PCM interface
3.3-V regulated power input
Ground
UART receive Input
UART transmit output
UART RTS, goes high to disable host transmitter
UART CTS, if set high, disables transmitter
USB port
USB port
RN-42
24
23
22
21
20
19
18
17
16
15
14
13
Description
SPI_MISO
SPI_CSB
GPIO4
GPIO5
GPIO3
GPIO2
USB_D-
USB_D+
UART_CTS
UART_RTS
UART_TX
UART_RX
Version 2.31r 10/15/2012
SPI_CLOCK
PCM_SYNC
SPI_MOSI
PCM_OUT
PCM_CLK
PCM_IN
RESET
GPIO6
GPIO7
GND
GND
VDD
No Connect
Input to RN-42 with weak pulldown
Input to RN-42 with weak pulldown
Input to RN-42 with 1K pullup
No Connect
No Connect
No Connect
No Connect
No Connect
Input to RN-42
High level output from RN-42
Low level output from RN-42
Low level input to RN-42
Pull up 1.5 K when active
1
2
3
4
5
6
7
8
9
10
11
12
35 29 34 33 32 31 28 30
Default
Top View
RN-42-N
27 26 25
24
23
22
21
20
19
18
17
16
15
14
13
RN -42 -DS
0
3
0 - 3.3
0 - 3.3
0 - 3.3
0 - 3.3
0 - 3.3
0 - 3.3
0 - 3.3
0 - 3.3
SPI_MISO
SPI_CSB
GPIO4
GPIO5
GPIO3
GPIO2
USB_D-
USB_D+
UART_CTS
UART_RTS
UART_TX
UART_RX
Voltage
(V)
4