TIR2000PAG

Specialized Overview

The TIR2000PAG is a high-speed serial infrared controller manufactured by Texas Instruments, designed for full infrared support and compatibility with TL16C550C and TL16C750 UART devices. It features a 64-byte FIFO to reduce CPU overhead and supports IrDA 1.0 (up to 115.2 Kbps), IrDA 1.1 (up to 1.15 Mbps and 4 Mbps), Sharp ASK, and TV remote control modes. The device operates on a 3.3-V or 5-V supply, utilizes an ISA-compatible bus interface, and includes programmable registers for interrupt and DMA routing. It is housed in a 64-pin TQFP package.

Specialized Feature Summary

• Supports multiple infrared protocols including IrDA 1.0, IrDA 1.1, Sharp ASK, and consumer television remote control modes.
• Integrates a selectable 16- or 64-byte FIFO to minimize software overhead and simplify driver design.
• Provides full-duplex infrared transmission and reception with controlled transmit start and back-to-back transaction support.
• Features an ISA-compatible bus interface and supports up to 11 IRQ options and 3 DMA configurations.

Specialized Applications

• High-speed infrared communication systems requiring IrDA compliance.
• Consumer electronics utilizing Sharp ASK infrared protocols.
• Television remote control interfaces supporting RC5, NEC, and other standard formats.
• Legacy ISA bus system designs requiring UART compatibility.

Specialized Procurement Notes

Verify the specific ordering suffix and package type against the manufacturer's current documentation before procurement. Confirm that the component meets the required voltage specifications for your application. Check for any end-of-life notices or alternative part recommendations from Texas Instruments. Ensure that the 64-pin TQFP package footprint matches your PCB design requirements.

Specialized Selection Notes

Select this component when designing systems requiring high-speed infrared data transfer with low CPU intervention. Consider the 64-byte FIFO capability if minimizing processor load is critical. Ensure the host system supports the ISA bus interface or provides appropriate decoding logic. Verify that the operating temperature range and voltage supply align with the target environment constraints.

Specialized Part Context

The TIR2000 series serves as a specialized serial communication controller bridging standard UART functionality with advanced infrared protocol handling. It is part of Texas Instruments' portfolio aimed at simplifying infrared integration in computing and consumer devices. The device maintains backward compatibility with common UART standards while offering enhanced performance for high-speed data links.

Specialized Replacement Considerations

The datasheet indicates full compatibility with TL16C450, TL16C550C, and TL16C750 UARTs. Designers may consider these parts for basic UART applications where infrared features are not required. No direct pin-for-pin replacements for the infrared-specific functions are listed in the provided text.