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| 型号： | MCP2140A-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 23/66页 |
| 文件大小： | 0K |
| 描述： | IC IRDA CONTROLLR DTE/DCE 20SSOP |
| 标准包装： | 67 |
| 控制器类型： | IRDA 标准协议栈控制器 |
| 接口： | UART |
| 电源电压： | 3 V ~ 5.5 V |
| 电流 - 电源： | 2.2mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
| 产品目录页面： | 685 (CN2011-ZH PDF) |
| 配用： | MCP2140DM-TMPSNS-ND - BOARD DEMO FOR MCP2140 |
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2007-2011 Microchip Technology Inc.
DS22050B-page 3
MCP2140A
1.0
DEVICE OVERVIEW
The MCP2140A is a cost-effective, low pin count (18-
pin), easy-to-use device for implementing IrDA stan-
dard wireless connectivity. The MCP2140A provides
support for the IrDA standard protocol “stack”, bit
encoding/decoding and low cost, discrete IR receiver
circuitry. The MCP2140A is footprint compatible with
the MCP2140. For migration assistance, please refer to
The serial and IR interface baud rates are fixed at
9600 baud. The serial interface and IR interface baud
rates are dependent on the device frequency, but IrDA
standard operation requires a device frequency of
3.6864 MHz.
The MCP2140A will specify the IR baud rate to the pri-
mary device during the Discover phase.
The MCP2140A can operate in Data Communication
Equipment (DCE) and Data Terminal Equipment (DTE)
applications, and resides between a UART and an
infrared optical transceiver.
The MCP2140A encodes an asynchronous serial data
stream, converting each data bit to the corresponding
infrared (IR) formatted pulse. IR pulses received are
decoded and then handled by the protocol handler
state machine. The protocol handler sends the appro-
priate data bytes to the host controller in UART
formatted serial data.
The MCP2140A supports “point-to-point” applications,
that is, one primary device and one secondary device.
The MCP2140A operates as a secondary device and
does not support “multi-point” applications.
Sending data using IR light requires some hardware
and the use of specialized communication protocols.
These protocol and hardware requirements are
described, in detail, by the IrDA standard specifica-
tions. The encoding/decoding functionality of the
MCP2140A is designed to be compatible with the phys-
ical layer component of the IrDA standard. This part of
the standard is often referred to as “IrPHY”.
Some of the devices that are compatible with the
MCP2140A include:
PCs with IR ports
PDAs
16-bit PIC Microcontroller IrDA Standard Stack
Library
More information about IrDA standards, specifications
and protocols can be found on the IrDA web site at
www.IrDA.org.
1.1
Applications
The MCP2140A infrared communications controller,
supporting the IrDA standard, provides embedded sys-
tem designers with the easiest way to implement IrDA
standard wireless connectivity. Figure 1-1 shows a typ-
ical application block diagram, while Table 1-2 shows
the pin definitions.
TABLE 1-1:
OVERVIEW OF FEATURES
Infrared communication is a wireless, two-way data
connection using infrared light generated by low-cost
transceiver signaling technology. This provides reliable
communication between two devices.
Infrared technology offers:
Universal standard for connecting portable
computing devices
Easy, effortless implementation
Economical alternative to other connectivity
solutions
Reliable, high-speed connections
Safe to use in any environment (can even be
used during air travel)
No emissions testing needed (FCC, Part 15)
Eliminates the hassle of cables
Allows PCs and other electronic devices (such as
PDAs, cell phones, etc.) to communicate with
each other
Enhances mobility by allowing users to easily
connect
The MCP2140A allows the easy addition of IrDA stan-
dard wireless connectivity to any embedded applica-
tion that uses serial data. Figure 1-1 shows typical
implementation of the MCP2140A in an embedded
system.
The IrDA protocol for printer support is not included in
the IrCOMM 9-wire “cooked” service class.
Features
MCP2140A
Serial Communications
UART, IR
Baud Rate Selection
Fixed
Low Power Mode
Yes - Automatic
Resets (and Delays)
RESET, POR
(PWRT and OST)
Packages
18-pin DIP, SOIC,
20-pin SSOP
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2140AT-I/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:IrDA㈢ Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate |
| MCP2140AT-I/SO | 功能描述:网络控制器与处理器 IC Enhanced MCP2140 Win Mobile 5.0 compatble RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2140AT-I/SS | 功能描述:网络控制器与处理器 IC Enhanced MCP2140 Win Mobile 5.0 compatble RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2140DM-TMPSNS | 功能描述:温度传感器开发工具 MCP2140 IrDA Wire- less Temp Demo RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流: |
| MCP2140-I/P | 功能描述:网络控制器与处理器 IC 9600bd fixd spd IrDA RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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