•IrDA®,:
-IrLAP
-IrLMP
-IAS
Application
MCP2140IrDA,IrDA.
Pinout
Specifications
| Operating Temperature Range (°C) | -40°C to +85°C |
| Xmit/Rec Formats supported (S) | 1.63 |
| Max. Baud Rate | 9600.0 |
| Operating Voltage (V) | 3 - 5.5 |
| Device Description | Fixed Speed 9600 Baud IrDA Protocol Stack Controller |
| Operating Temperature Range (°C) |
-40°C to +85°C |
| Xmit/Rec Formats supported (S) |
1.63 |
| Max. Baud Rate |
9600.0 |
| Operating Voltage (V) |
3 - 5.5 |
| Device Description |
Fixed Speed 9600 Baud IrDA Protocol Stack Controller |
†
.......................................................40°C+125°C
.........................................................................65°C+150°C
VSSVDD ...........................................................-0.3V +7.5V
VSSRESET...........................................................-0.3V +14V
VSS..............................0.3V(VDD + 0.3V)
(1) ...........................................................................................1W
VSS ...............................................................300 mA
VDD ...................................................................250 mA
IIK(VI < 0VI > VDD)..............................................±20 mA
IOK(V0 < 0V0 > VDD)...........................................±20 mA
.............................................................25 mA
.............................................................25 mA
1::PDIS = VDD x {IDD - IOH} + {(VDD-VOH) x IOH} + (VOL x IOL)
† :,.,.,.
Description
MCP2140 embeds IrDA protocol handling and bit encoding/decoding, and provides the lowest cost, lowest power consumption solution for adding IrDA connectivity to embedded systems
The MCP2140 is a cost-effective, low pin count (18-pin), easy-to-use device for implementing IrDA standard wireless connectivity. The MCP2140 provides support for the IrDA standard protocol "stack", bit encoding/decoding and low cost, discrete IR receiver circuitry.
The serial and IR interface baud rates of MCP2140 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 7.3728 MHz.
The MCP2140 will specify to the Primary Device the IR baud rate during the Discover phase.
The MCP2140 can operate in Data Communication Equipment (DCE) and Data Terminal Equipment (DTE) applications, and sits between a UART and an infrared optical transceiver.
The MCP2140 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 appropriate data bytes to the Host Controller in UART formatted serial data.
The MCP2140 supports "point-to-point" applications, that is, one Primary device and one Secondary device. The MCP2140 operates as a Secondary device and does not support "multi-point" applications.
Sending data using IR light of MCP2140 requires some hardware and the use of specialized communication protocols. These protocol and hardware requirements are described, in detail, by the IrDA standard specifications. The encoding/decoding functionality of the MCP2140 is designed to be compatible with the physical layer component of the IrDA standard. This part of the standard is often referred to as "IrPHY".
The complete IrDA standard specification is available for download from the IrDA website at www.IrDA.org.
MCP2140 Data Sheet
