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  Microchip Technology Semiconductor Electronic Components Datasheet  


MCP2122

Infrared Encoder/Decoder



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MCP2122 pdf
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MCP2122
Infrared Encoder/Decoder
Features
• Pinout compatible with HSDL-7000
• Compliant with IrDA® Standard Physical Layer
Specification (version 1.3)
• UART to IrDA Standard Encoder/Decoder
- Interfaces with IrDA Standard Compliant
Transceiver
• Baud Rates:
- Up to IrDA Standard 115.2 Kbaud Operation
• Transmit/Receive Formats (Bit Width) Supported:
- 1.63 µs
• Low-power Mode (2 µA at 1.8V, +125°C)
CMOS Technology
• Low-voltage operation
• Extended temperature range
• Low power consumption
Package Types
PDIP, SOIC
16XCLK
TX
RX
VSS
1
2
3
4
8
7
6
5
Block Diagram
MCP2122
TX Encode
RESET
16XCLK
RX
Reset
Logic
Baud Rate
Generator
Decode
VDD
TXIR
RXIR
RESET
TXIR
RXIR
IrDA Family Selection
Device
Baud Rate
Host
UART
IR
Encoder
/
Decoder
Protocol
Layer
Handler
Clock
Source
Host UART
Baud Rate
Selection
Comment
MCP2120
MCP2122
MCP2140
2400 -
312,500 (1)
2400 -
115,200 (1)
9600
2400 -
312,500 (1)
2400 -
115,200 (1)
9600
Yes
Yes
Yes
No
XTAL
HW/SW
No
IrCOMM
(3)
16XCLK By 16XCLK Extended Temperature Range
(-40°C to +125°C)
XTAL None - Fixed
MCP2150 9600 -
9600 -
115,200 (2) 115,200 (2)
Yes
IrCOMM XTAL
(3)
HW Host UART easily interfaces to
a PC’s serial port (DTE)
MCP2155 9600 -
9600 -
115,200 (2) 115,200 (2)
Yes
IrCOMM XTAL
(3)
HW Host UART easily interfaces to
a modem’s serial port (DCE)
Note 1: The host UART and the IR operate at the same baud rates.
2: The host UART and IR baud rates operate independent of each other.
3: Supports the 9-wire “cooked” service class of the IrCOMM Application Layer Protocol.
2004 Microchip Technology Inc.
Preliminary
DS21894B-page 1



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MCP2122 pdf
MCP2122
NOTES:
DS21894B-page 2
Preliminary
2004 Microchip Technology Inc.



Part Number MCP2122
Description Infrared Encoder/Decoder
Maker Microchip Technology - Microchip Technology
Total Page 30 Pages
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