MCP2140_13 Datasheet, PDF (1/58 Pages) Microchip Technology – IrDA® Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate

MCP2140
IrDA^® Standard Protocol Stack Controller
With Fixed 9600 Baud Communication Rate
Features
• Implements the IrDA^® standard, including:
- IrLAP
- IrLMP
- IAS
- TinyTP
- IrCOMM (9-wire “cooked” service class)
• Provides IrDA standard physical signal layer
support including:
- Bidirectional communication
- CRC implementation
- Fixed Data communication rate of 9600 baud
• Includes UART-to-IrDA standard encoder/decoder
functionality:
- Easily interfaces with industry standard
UARTs and infrared transceivers
• UART interface for connecting to Data
Communications Equipment (DCE) or Data
Terminal Equipment (DTE) systems
• Transmit/Receive formats (bit width) supported:
- 1.63 µs
• Hardware UART Support:
- 9.6 kbaud baud rate
- 29 Byte Data Buffer Size
• Infrared Supported:
- 9.6 kbaud baud rate
- 64 Byte Data Packet Size
• Operates as Secondary Device
• Automatic Low Power mode
- < 60 µA when no IR activity present 
(PHACT = L)
CMOS Technology
• Low power, high-speed CMOS technology
• Fully static design
• Low voltage operation
• Industrial temperature range
• Low power consumption
- < 1 mA @ 3.0V, 7.3728 MHz (typical)
Package Types
PDIP, SOIC
RXPDREF
TXIR
PHACT
RESET
VSS
NC
TX
RX
RI
SSOP
RXPDREF
TXIR
PHACT
RESET
VSS
VSS
NC
TX
RX
RI
1 18
2 17
3 16
4 15
5 14
6 13
7 12
8 11
9 10
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10 11
RXPD
CD
OSC1/CLKI
OSC2
VDD
RTS
CTS
DTR
DSR
RXPD
CD
OSC1/CLKI
OSC2
VDD
VDD
RTS
CTS
DTR
DSR
Block Diagram
MCP2140
TX
Encode and
Protocol Handler
PHACT
Logic
Baud
Rate
Generator
RX
Protocol
Handler
+
-
and Decode
RTS
CTS
DSR
DTR
CD
RI
UART
Control
TXIR
RXPD
RXPDREF
OSC1
OSC2
 2003-2012 Microchip Technology Inc.
Preliminary
DS21790B-page 1