MCP2140 Microchip Technology, Inc., MCP2140 Datasheet - Page 4

• Manufacturer Part Number: MCP2140
• Description: The 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
• Manufacturer: Microchip Technology, Inc.

MCP2140
FIGURE 1-1:
DS21790A-page 4
Microcontroller
PICmicro
Note 1: Not all microcontroller I/O pins are required to be connected to the MCP2140.
®
SYSTEM BLOCK DIAGRAM
SO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
SI
RTS
CTS
DSR
DTR
CD
RI
PHACT
TX
RX
Preliminary
Control
Encode
Logic
UART
Baud Rate
Generator
MCP2140
Decode
TXIR
+
-
RXPDREF
RXPD
IR LED
IR Receive
2003 Microchip Technology Inc.
Circuitry
Detect
IR Photo
diode