XR68C192IJ-F

Overview

The XR68C192IJ-F is a dual-channel Universal Asynchronous Receiver and Transmitter (UART) manufactured by MaxLinear. It features an integrated internal oscillator and timer/counter, eliminating the need for external clock components. The device supports data rates up to 1 Mb/s and includes 8-byte transmit and receive FIFOs for each channel. It operates within a supply voltage range of 2.97 V to 5.5 V, with typical operation at 2.5 V, 3.3 V, or 5 V. The component is housed in a 44-pin PLCC package and is rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• Dual UART channels with independent 8-byte transmit and receive FIFOs
• Integrated internal oscillator and timer/counter for simplified design
• Supports standard asynchronous serial communication protocols

Applications

• Industrial control systems requiring multiple serial interfaces
• Embedded systems with limited board space for clock generation
• Data acquisition equipment needing buffered serial I/O

Procurement Notes

This component is officially listed as End-of-Life (EOL). Verification of availability should focus on remaining stock from authorized distributors or secondary market sources. Buyers must confirm RoHS compliance status and check for Product Change Notices (PCN) related to manufacturing site changes or specification updates before procurement.

Selection Notes

Select this part when a dual UART solution with integrated timing is required in a PLCC-44 package. Ensure the application supports the specified voltage range and that the 8-byte FIFO depth meets the system's throughput requirements. Verify compatibility with the target microcontroller's interface signals and consider the EOL status for long-term production planning.

Part Context

The XR68C192 series belongs to MaxLinear's portfolio of legacy UART interface controllers, originally developed under the Exar brand. This specific model provides a compact solution for applications previously reliant on discrete UART and clock generator chips. It serves as a drop-in replacement for older dual UART designs requiring reduced component count.

Replacement Considerations

Verify pinout compatibility with existing designs. Potential substitutes include other dual UART ICs in PLCC-44 packages, such as the XR68C92 series variants, though FIFO depths and voltage ranges may differ. Consult official substitution guides for confirmed equivalents.