low pin count infrared transceiver device MICROCHIP MCP2140AT I SO supporting IrDA standard protocol
Product Overview
The MCP2140A is a cost-effective, low pin count (18-pin), easy-to-use device for implementing IrDA standard wireless connectivity. It provides support for the IrDA standard protocol stack, bit encoding/decoding, and low-cost, discrete IR receiver circuitry. The MCP2140A is footprint compatible with the MCP2140. The serial and IR interface baud rates are fixed at 9600 baud. The MCP2140A can operate in Data Communication Equipment (DCE) and Data Terminal Equipment (DTE) applications, and resides between a UART and an infrared optical transceiver. It encodes an asynchronous serial data stream, converting each data bit to the corresponding infrared (IR) formatted pulse. IR pulses received are decoded and then handled by the protocol handler state machine. The protocol handler sends the appropriate data bytes to the host controller in UART formatted serial data. The MCP2140A supports point-to-point applications, that is, one primary device and one secondary device. It operates as a secondary device and does not support multi-point applications. The encoding/decoding functionality of the MCP2140A is designed to be compatible with the physical layer component of the IrDA standard, often referred to as IrPHY.
Product Attributes
- Brand: Microchip Technology Inc.
- Origin: CMOS Technology
- Material: Low power, high-speed CMOS technology
- Certifications: IrDA Protocols
Technical Specifications
| Feature | Specification |
|---|---|
| IrDA Protocols Implemented | IrLAP, IrLMP, IAS, Tiny TP, IrCOMM (9-wire cooked service class) |
| Physical Signal Layer Support | Bidirectional communication, CRC implementation, Fixed Data communication rate of 9600 baud |
| UART-to-IrDA Functionality | Encoder/decoder, interfaces with industry standard UARTs and infrared transceivers |
| Communication Interface | UART interface for connecting to DCE or DTE systems |
| Transmit/Receive Formats (bit width) | 1.63 s (Transmit & Receive), 3/16 bit time (Receive Only) |
| Hardware UART Support | 9.6 kbaud baud rate, 60 Byte Data Buffer Size (64 Byte Packet) |
| Infrared Support | 9.6 kbaud baud rate, 64 Byte Packet Size (60 Data Bytes) |
| Operating Mode | Secondary Device |
| Operating Voltage | 2.0V to 5.5V |
| Low Power Mode (Automatic) | |
| Power Consumption (Typical) | |
| Package Types | PDIP, SOIC, SSOP |
| Resets | RESET, POR (PWRT and OST) |
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