MCP2140A-I/SO Microchip Technology, MCP2140A-I/SO Datasheet - Page 52

• Manufacturer Part Number: MCP2140A-I/SO
• Description: IC IRDA CONTROLLR DTE/DCE 18SOIC
• Manufacturer: Microchip Technology

Specifications of MCP2140A-I/SO

• Package / Case: 18-SOIC (7.5mm Width)
• Controller Type: IRDA Standard Protocol Stack Controller
• Interface: UART
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 2.2mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Product: Controller Area Network (CAN)
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Ic Function: Standard Protocol Stack Controller
• Brief Features: Includes UART-to-IrDA Standard Encoder/decoder Functionality, Infrared Supported
• Supply Voltage Range: 2V To 5.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP2140DM-TMPSNS - BOARD DEMO FOR MCP2140
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP2140A
The IrDA Standard specifies the following protocols:
• Physical Signaling Layer (PHY)
• Link Access Protocol (IrLAP)
• Link Management Protocol/Information Access
The IrDA data lists optional protocols. They are:
• Tiny TP
• IrTran-P
• IrOBEX
• IrLAN
• IrCOMM
• IrMC
• IrDA Lite
Figure C-2
which
MCP2140A.
FIGURE C-2:
DS22050A-page 52
Service (IrLMP/IAS)
Note 1:
(9600 -115200 b/s)
LM-IAS
IrTran-P
Supported by
the MCP2140A
Asynchronous
Serial IR
components
2:
3:
IR Link Management - Mux (IrLMP)
IR Link Access Protocol (IrLAP)
shows the IrDA data protocol stack and
The MCP2140A implements the 9-wire
“cooked” service class serial replicator.
The MCP2140A is fixed at 9600 Baud.
An optical transceiver is required.
(2, 3)
IrObex IrLan
Tiny Transport Protocol (Tiny TP)
IRDA DATA - PROTOCOL
STACKS
Synchronous
(1.152 Mb/s)
are
Serial IR
Optional IrDA data
protocols not
supported by
the MCP2140A
implemented
IrComm
Synchronous
(1)
(4 Mb/s)
4 PPM
IrMC
by
the
C.1
The MCP2140A supports these required IrDA standard
protocols:
• Physical Signaling Layer (PHY)
• Link Access Protocol (IrLAP)
• Link Management Protocol/Information Access
The MCP2140A also supports some of the optional
protocols for IrDA data. The optional protocols that the
MCP2140A implements are:
• Tiny TP
• IrCOMM
C.1.1
The MCP2140A provides the following Physical Signal
Layer specification support:
• Bidirectional communication
• Data Packets are protected by a CRC
• Data Communication Rate
The
dependant on the optical transceiver logic used in the
application. The specification states:
• Communication Range, which sets the end user
Service (IrLMP/IAS)
- 16-bit CRC for speeds up to 115.2 kbaud
Note:
- 9600 baud minimum data rate (with primary
Note:
expectation for discovery, recognition and
performance
- Continuous operation from contact to at least
- A low power specification reduces the
speed/cost steps of 115.2 kbaud
1 meter (typically 2 meters can be reached)
objective for operation from contact to at
least 20 cm (low power and low power) or
30 cm (low power and standard power)
following
IrDA STANDARD DATA
PROTOCOLS SUPPORTED BY
MCP2140A
PHYSICAL SIGNAL LAYER (PHY)
MCP2140A supports 9600 Baud only.
MCP2140A supports 9600 Baud only.
Physical
© 2007 Microchip Technology Inc.
Layer
Specification
is