MCP2120-I/SL

Encoders, Decoders, Converters Overview

The MCP2120-I/SL is a low-cost, high-performance infrared encoder/decoder manufactured by Microchip Technology. It operates within a supply voltage range of 2.5V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. The device interfaces with IrDA-compliant transceivers and standard UARTs, supporting baud rates up to 115.2 kbaud via hardware selection or up to 312.5 kbaud at 20 MHz via software selection. Typical power consumption is less than 1 mA at 3.3V and 8 MHz, rising to 3 mA when disabled at 5.0V. It utilizes fully static CMOS technology and features a 14-pin SOIC package.

Encoders, Decoders, Converters Feature Summary

• Supports IrDA Physical Layer Specification version 1.3
• Interfaces with any UART including standard 16550 and microcontroller modules
• Hardware or software selectable baud rate configuration
• Low power operation with dedicated disable mode

Encoders, Decoders, Converters Applications

• Infrared communication between portable computing devices
• Industrial sensor networks requiring EMI immunity
• Medical equipment data transmission
• Smart home wireless control systems

Encoders, Decoders, Converters Procurement Notes

Verify the specific suffix 'I/SL' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure that ordering requirements match the intended application environment. Confirm RoHS compliance status through current datasheets as manufacturing processes may evolve over time.

Encoders, Decoders, Converters Selection Notes

Select this component for applications requiring strict adherence to IrDA standards with minimal external circuitry. Consider the available clock frequencies when determining maximum achievable baud rates. Evaluate power constraints carefully if operating in low-power modes frequently.

Encoders, Decoders, Converters Part Context

This part belongs to the MCP2120 series of infrared encoder/decoders designed for serial communication. It serves as an interface bridge between digital logic controllers and optical transceivers. The family focuses on providing reliable, cable-free connectivity solutions compliant with established industry protocols.

Encoders, Decoders, Converters Replacement Considerations

MCP2120-I/P

Encoders, Decoders, Converters FAQ

How is the baud rate configured?

The baud rate can be selected using three hardware pins (BAUD2, BAUD1, BAUD0) or through software commands sent via the UART interface.

What encoding format does the device support?

The MCP2120 supports the 1.63 µs transmit/receive format required by the IrDA Physical Layer Specification version 1.3.

Can the device operate without a crystal oscillator?

Yes, an external clock source can be applied to the OSC1/CLKIN pin instead of using a crystal oscillator.