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MCP2122 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP2122 Datasheet(HTML) 1 Page - Microchip Technology |
1 / 34 page 2004 Microchip Technology Inc. Preliminary DS21894B-page 1 MCP2122 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 Block Diagram IrDA Family Selection PDIP, SOIC VSS 16XCLK RESET RXIR TXIR VDD TX RX 1 2 3 4 8 7 6 5 Encode Decode TX TXIR RX RXIR RESET MCP2122 Reset Baud Rate Generator Logic 16XCLK Device Baud Rate Encoder / Decoder Protocol Layer Handler Clock Source Host UART Baud Rate Selection Comment Host UART IR MCP2120 2400 - 312,500 (1) 2400 - 312,500 (1) Yes No XTAL HW/SW MCP2122 2400 - 115,200 (1) 2400 - 115,200 (1) Yes No 16XCLK By 16XCLK Extended Temperature Range (-40°C to +125°C) MCP2140 9600 9600 Yes IrCOMM (3) XTAL None - Fixed MCP2150 9600 - 115,200 (2) 9600 - 115,200 (2) Yes IrCOMM (3) XTAL HW Host UART easily interfaces to a PC’s serial port (DTE) MCP2155 9600 - 115,200 (2) 9600 - 115,200 (2) Yes IrCOMM (3) XTAL 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. Infrared Encoder/Decoder |
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