XR68M752IM48TR-F

Overview

The XR68M752IM48TR-F is a dual-channel UART interface integrated circuit manufactured by MaxLinear. It features 64-byte transmit and receive FIFOs for each channel, supporting data rates up to 16 Mb/s. The device operates within a supply voltage range of 1.62 V to 3.63 V, accommodating 1.8 V, 2.5 V, 3.3 V, and 5 V systems. It supports Intel and Motorola bus protocols and includes RS232, RS422, and RS485 interface capabilities. Packaged in a 48-pin TQFP (7x7 mm) format with reel packaging, it functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual UART channels with independent 64-byte TX and RX FIFOs
• Supports Intel and Motorola bus protocol compatibility
• Integrated internal oscillator and timer/counter functionality
• Compatible with RS232, RS422, and RS485 serial interfaces

Applications

• Industrial automation control systems requiring serial communication
• Embedded devices needing multi-channel UART connectivity
• Data acquisition systems utilizing RS422 or RS485 buses
• Motorola or Intel-based legacy system interfacing

Procurement Notes

Verify the specific suffix 'TR-F' indicates tape-and-reel packaging when ordering. Confirm that the 48-TQFP package dimensions match your PCB footprint requirements. Ensure the operating voltage range aligns with your system's power supply rails. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the 16 Mb/s maximum data rate meets your application's throughput needs.

Selection Notes

Select this component when dual-channel serial communication is required with moderate FIFO buffering. It is suitable for applications supporting both Intel and Motorola bus modes. Consider the 48-pin TQFP package for surface-mount assembly constraints. Evaluate the 1.62 V to 3.63 V operating range against your system's power availability. Compare against single-channel alternatives if only one UART port is necessary.

Part Context

This part belongs to the MaxLinear VLIO UART series, designed for versatile serial interface applications. It complements other UART ICs like the XR16M752IM48-F, which offers similar dual-channel functionality but differs in packaging and bus support. The XR68M752 series provides a balance of performance and flexibility for embedded serial communication tasks.

Replacement Considerations

The XR16M752IM48-F is a related dual-channel UART with 64-byte FIFOs, though it primarily supports Intel bus mode and uses tray packaging instead of reel. Verify pinout compatibility and software register differences before substitution. Other family members may offer different channel counts or FIFO sizes.