XR16V2552IJ

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16V2552IJ is a dual universal asynchronous receiver/transmitter (DUART) integrated circuit manufactured by Sipex. It integrates two independent UART channels with 16-byte transmit and receive FIFOs, supporting RS-232, RS-422, and RS-485 communication standards. The device operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 3 Mbps. Key electrical parameters include a maximum operating temperature of 85 °C and a minimum of -40 °C. It is housed in a 48-pin TQFP package with dimensions of 7x7 mm.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with integrated 16-byte FIFOs for each transmitter and receiver
• Support for multiple serial communication protocols including RS-232, RS-422, and RS-485
• High-speed data transfer capability with baud rates reaching up to 3 Mbps
• Integrated modem control signals and hardware flow control support

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial communication
• Embedded systems with multiple serial interface requirements
• Telecommunications equipment utilizing RS-422 or RS-485 standards
• Point-of-sale terminals and barcode scanners

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation on the component marking, as Sipex operations were acquired by Exar and subsequently MaxLinear. Ensure the part number suffix matches the specified industrial temperature grade and package type. Confirm RoHS compliance status through official documentation, as older production runs may differ. Cross-reference the specific ordering code with current distributor catalogs to ensure availability and authenticity from authorized sources.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a design requires two independent serial ports with moderate FIFO depth to reduce CPU overhead. Compare against single-channel alternatives if only one interface is needed to optimize board space. Consider the 48-pin TQFP footprint during PCB layout planning. Evaluate power consumption requirements against the 3.0 V to 5.5 V operating range to ensure compatibility with the system's power rails.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The XR16V2552 series belongs to the broader family of high-performance DUART controllers designed for embedded applications. Sipex, now part of MaxLinear, produced this line to replace legacy UART solutions with higher throughput and lower power consumption. This specific model serves as a dual-channel variant within that portfolio, offering enhanced functionality over single-channel counterparts like the XR16V2550.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Direct substitutes include the XR16V2552IMTR-F from MaxLinear/Exar, which shares identical pinout and functional specifications. Verify package compatibility and thermal characteristics when transitioning between manufacturers. Check for any minor differences in register mapping or timing parameters in the updated datasheets before implementation.