XR88C92IV-F

Overview

The XR88C92IV-F is a dual-channel Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 2.97V to 5.5V and supports data rates up to 1 Mb/s. The device features 8-byte transmit and receive FIFOs for each channel, enabling efficient data buffering. It includes an internal oscillator, configurable general-purpose input/output pins, and timers/counters. The component is housed in a 44-PLCC package with J-leads and is rated for commercial operating temperatures from 0°C to +70°C.

Feature Summary

• Dual independent UART channels with dedicated 8-byte FIFO buffers for transmission and reception.
• Integrated internal oscillator eliminating the need for external clock components.
• Configurable GPIO pins and built-in timer/counter functionality for system control.
• Supports automatic hardware flow control for reliable serial communication.

Applications

• Industrial automation systems requiring robust serial communication interfaces.
• Embedded controllers needing multiple asynchronous serial ports.
• Telecommunications equipment utilizing standard UART protocols.
• Point-of-sale terminals and kiosks with serial peripheral connectivity.

Procurement Notes

Verify current availability status as the XR88C92IV-F may be subject to discontinuation notices. Confirm that the IV suffix corresponds to the commercial temperature range and PLCC package variant required for your design. Cross-reference with official MaxLinear product change notifications to ensure long-term supply viability or identify approved replacement strategies before finalizing procurement plans.

Selection Notes

Select this component when dual UART channels are required in a single package with moderate data rates up to 1 Mb/s. Ensure the design accommodates the 44-pin PLCC footprint and 2.97V to 5.5V power supply constraints. Consider the internal oscillator accuracy if precise baud rate generation is critical without external crystal support. Verify that the commercial temperature range meets the environmental requirements of the target application.

Part Context

The XR88C92 series belongs to MaxLinear's VLIO UART family, designed for versatile serial communication needs. This specific part integrates two full UARTs with FIFOs, distinguishing it from single-channel variants. It serves as a bridge between parallel microprocessor buses and serial data streams, commonly replacing legacy discrete UART solutions in compact embedded designs.

Replacement Considerations

Check for direct pin-compatible replacements within the XR88C92 family or newer MaxLinear UART offerings. Verify electrical compatibility and software register mapping if substituting with similar dual-UART ICs from other manufacturers.