XR16V654DIV-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16V654DIV-F is a quad Universal Asynchronous Receiver/Transmitter (UART) interface integrated circuit manufactured by MaxLinear. It operates within a supply voltage range of 2.25 V to 3.6 V and supports data rates up to 2 MBps. The device features four independent channels, each equipped with a 64-byte transmit and receive FIFO buffer. It utilizes an Intel-compatible bus interface for system connectivity. The component is housed in a 64-pin Low-Profile Quad Flat Package (LQFP) measuring 10 mm x 10 mm with a height of 1.40 mm. It includes internal oscillators, timers/counters, and automatic flow control capabilities.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Quad UART architecture with dedicated 64-byte FIFOs per channel
• Intel-compatible bus interface for simplified system integration
• Supports operation at 2.5 V supply voltage with 50 MHz clock capability
• Integrated automatic flow control and modem control signals

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial communication systems requiring multiple serial ports
• Embedded controllers needing high-speed asynchronous data transfer
• Telecommunications equipment utilizing RS-232 compatible interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific suffix 'F' indicates lead-free compliance and RoHS adherence as documented in official Exar/MaxLinear specifications. Confirm package dimensions match the LQFP-64 standard. Check current product lifecycle status, as some variants may be discontinued or subject to limited availability. Ensure compatibility with existing board layouts regarding pin assignments and thermal requirements.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when four independent UART channels are required with substantial buffering to handle burst data traffic. The 64-byte FIFO depth reduces CPU overhead compared to smaller buffer alternatives. Verify that the host system supports the Intel bus interface protocol. Consider the operating temperature range and voltage levels to ensure alignment with the target application environment and power supply constraints.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16V654D series of quad UARTs from MaxLinear (formerly Exar). It shares architectural similarities with other members like the XR16V554DIV-F but offers larger 64-byte FIFOs instead of 16-byte buffers. The series is designed for applications requiring robust serial communication with minimal processor intervention through hardware flow control and interrupt generation.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The XR16V554DIV-F serves as a functional alternative if reduced FIFO capacity (16 bytes) is acceptable. Both parts share the same LQFP-64 package and pinout. Verify electrical characteristics and timing parameters to ensure compatibility with the existing design constraints before substitution.