MCP2155-I/SS

The MCP2155 is a low-cost, high-performance, fully-static infrared encoder/decoder. This device sits between a UART and an infrared (IR) optical transceiver. The data received from a standard UART is encoded (modulated), and output as electrical pulses to the IR Transceiver. The IR Transceiver also receives data which it outputs as electrical pulses. The MCP2155 decodes (demodulates) these electrical pulses and then the data is transmitted by the MCP2155 UART. This modulation and demodulation method is performed in accordance with the IrDA standard. Typically a microcontroller interfaces to the IR encoder/ decoder. Infrared communication is a wireless two-way data connection using infrared light generated by low-cost transceiver signaling technology. This provides reliable communication between two devices.

• 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)