MCP2140T-I/SS

The MCP2140T-I/SS from Microchip Technology is a cost-effective, low pin count IC that implements IrDA standard wireless connectivity. It provides support for the IrDA standard protocol stack, including bit encoding/decoding and low-cost discrete IR receiver circuitry. The device features a fixed serial and IR interface baud rate of 9600 baud, requiring a device frequency of 7.3728 MHz for standard IrDA operation.

Key electrical specifications include a supply voltage range of 3V to 5.5V and a typical supply current of 2.2mA. It supports an industrial temperature range of -40°C to 125°C. The IC includes hardware UART support with a 29-byte data buffer and supports infrared communication with a 64-byte data packet size. It can operate as a secondary device and features an automatic low power mode, consuming less than 60 µA when no IR activity is present.

This controller IC interfaces easily with industry-standard UARTs and infrared transceivers. It is suitable for Data Communications Equipment (DCE) or Data Terminal Equipment (DTE) systems. The MCP2140T-I/SS is available in a 20-SSOP package, measuring 0.209 inches (5.30mm) in width. It implements IrDA standards such as IrLAP, IrLMP, and IrTTP, and provides IrCOMM (9-wire "cooked" service class) support.