1 Features

1• Adds Infrared (IR) Port to Universal Asynchronous

Receiver Transmitter (UART)

• Compatible With Infrared Data Association

(IrDA™) and Hewlett Packard Serial Infrared

(HPSIR)

• Provides 1200-bps to 115-kbps Data Rate

• Operates from 2.7 V to 5.5 V

• Provides Simple Interface With UART

• Decodes Negative or Positive Pulses

• Available in Two 8-Terminal Plastic Small Outline

Packages (PSOP)

– PS Package Has Slightly Larger Dimensions

Than PW Package

2 Applications

• UART Interfacing

• Infrared Data Communications

3 Description

The TIR1000x serial infrared (SIR) encoder and

decoder is a CMOS device that encodes and

decodes bit data in conformance with the IrDA

specification.

A transceiver device is needed to interface to the

photo-sensitive diode (PIN) and the light emitting diode (LED). A UART is needed to interface to the

serial data lines.