XR88C192IV-F

Overview

The XR88C192IV-F is a dual-channel UART interface integrated circuit manufactured by MaxLinear. It features two independent asynchronous communication channels, each equipped with a 16-byte transmit and receive FIFO buffer to enhance data throughput and reduce CPU overhead. The device supports data rates up to 230.4 kbps and operates within a supply voltage range of 2.97 V to 5.5 V. It is housed in a 44-pin LQFP package (10x10 mm) designed for surface-mount installation. Key functional parameters include an operating temperature range of 0°C to +70°C and compatibility with standard CMOS logic levels.

Feature Summary

• Dual independent UART channels with 16-byte FIFO buffers per channel
• Configurable general-purpose input/output pins for system flexibility
• Integrated internal oscillator and timer/counter capabilities
• Supports automatic hardware flow control for reliable data transmission

Applications

• Industrial automation systems requiring serial communication
• Embedded control units needing multiple asynchronous interfaces
• Telecommunications equipment with legacy UART requirements
• Point-of-sale terminals and kiosks

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Request lot traceability and RoHS compliance certificates. Inspect packaging for moisture sensitivity indicators as the device has MSL Level 3 classification. Confirm pinout compatibility with existing PCB footprints before procurement.

Selection Notes

Select this component when dual UART functionality with moderate FIFO depth is required. Compare against the XR88C92 series if smaller 8-byte FIFOs are sufficient for the application. Ensure the 44-LQFP package fits the mechanical constraints. Verify that the 230.4 kbps maximum speed meets the system's baud rate requirements.

Part Context

This part belongs to the XR88Cx92 family of dual UART controllers from MaxLinear. It shares architectural similarities with the XR88C92 but offers increased buffer capacity. The IV suffix typically denotes the industrial temperature grade and LQFP package variant within the product line.

Replacement Considerations

The XR88C92IV-F is a related variant with 8-byte FIFOs instead of 16 bytes. Check datasheets for pin-to-pin compatibility and electrical parameter differences before substitution.