4.0 Ordering Information ...................................................................................................................................................................18
The Microchip Web Site........................................................................................................................................................................21
Customer Change Notification Service .................................................................................................................................................21
Product Identification System ...............................................................................................................................................................23
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at
docerrors@microchip.com.
We welcome your feedback.
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site;
http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are
using.
Customer Notification System
Register on our web site at
www.microchip.com
to receive the most current information on all of our products.
DS50002328A-page 2
2015 Microchip Technology Inc.
RN42/RN42N
1.0
DEVICE OVERVIEW
FIGURE 1-1:
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.
RN42/RN42N TO MCU
INTERFACE
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.
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
-40
o
C ~ 85
o
C
-40
o
C ~ 85
o
C
90%
90%
1
Temperature Range (Operating)
Temperature Range (Storage)
Relative Humidity (Operating)
Relative Humidity (Storage)
Moisture Sensitivity Level
TABLE 1-2:
ELECTRICAL CHARACTERISTICS
Parameter
Min.
3.0
—
—
—
40
—
Typ.
3.3
40
25
12
45
26
Max.
3.6
—
—
—
50
—
Units
V
mA
mA
mA
mA
A
Supply Voltage (DC)
Average Power Consumption
Radio On (Discovery or Inquiry Window Time)
(1)
Connected Idle (No Sniff)
Connected Idle (Sniff 100 ms)
Connected with Data Transfer
Deep Sleep Idle Mode
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
RN42/RN42N
TABLE 1-3:
Size
Weight
MODULE DIMENSIONS
RN42
13.4 x 25.8 x 2.4
0.045
0.040
Parameter
RN42N
13.4 x 20.5 x 2.4
Units
mm
oz.
TABLE 1-4:
RADIO CHARACTERISTICS
Parameter
Frequency
(GHz)
2.402
2.441
2.480
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
140
140
140
140
140
140
Typ.
-80
-80
-80
4
4
4
4
4
4
5
5
5
900
15
13
165
165
165
190
190
190
Max.
-86
-86
-86
—
—
—
—
—
—
75
75
75
1000
—
—
175
175
175
—
—
—
115
≤
1000
40
20
> 140
75
Bluetooth
Specification
≤
-70
Units
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
Sensitivity at 0.1% BER
RF Transmit Power
RN42
(1)
2.402
2.441
2.480
2.402
2.441
2.480
2.402
2.441
2.480
RF Transmit Power
(1)
RN42N
Initial Carrier Frequency Tolerance
20-dB Bandwidth for Modulated Carrier
Drift (Five Slots Packet)
Drift Rate
∆f1
avg
Maximum Modulation
—
—
—
2.402
2.441
2.480
∆f2
avg
Minimum Modulation
2.402
2.441
2.480
Note 1:
Normal mode
TABLE 1-5:
DIGITAL I/O CHARACTERISTICS
3.0 V
≤
VDD
≤
3.3 V
Min.
-0.4
0.7 VDD
—
VDD - 0.2
+0.2
Typ.
—
—
—
—
+1.0
Max.
+0.8
VDD + 0.4
0.2
—
+5.0
Units
V
V
V
V
A
Input Logic Level Low
Input Logic Level High
Output Logic Level Low
Output Logic Level High
All I/O pins (Except reset) Default to Weak Pull Down
三星刚出的旗舰新机Galaxy S III固然不错，但是高昂的价格不是每个人都能承受的起。昨天我们报道了一部山寨版的i9300，而现在该机价格和具体配置已经全部出炉。 这款山寨的Galaxy S III名叫HDC Galaxy S3，其外形甚至UI界面都与原型机异常相似。该机的三围为138×70×9.2mm，配备了一块4.7寸触摸屏，分辨率只有800×480像素。
该机还搭载了...[详细]
从全球来看，智能电视在设备互联接口、内容服务接口、应用程序开发接口、系统安全可信技术等方面的标准尚未统一，厂商采用不同的操作系统和内容接口，各自的应用互不兼容，对产业整体发展造成障碍，在应用丰富度上也很欠缺。近日国内一些家电厂商主办智能电视开发论坛，力图吸引更多的开发者参与进来，从这一点来看，目前还是家电厂商较为主动地在推动智能电视标准化以及各类应用的开发。 TV OS成产业角逐焦点 ...[详细]
NXP MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
