XR17D158 Universal (3.3V and 5V) PCI Bus Octal UART

The XR17D158 is a single chip 8-channel 66MHz PCI (Peripheral Component Interconnect) UART (Universal Asynchronous Receiver and Transmitter) solution, optimized for higher performance and lower power. The V258 device with its fifth generation register set is designed to meet the high bandwidth and power management requirements for multi-serial communication ports for system administration and management. The 32-bit 66MHz PCI interface is compliant with PCI 3.0 and PCI power management revision 1.1 specifications. The device provides an upgrade path for Exar’s 33MHz 5V and Universal PCI UART family of products in a 144-pin LQFP package. The V258 consists of eight independent UART channels, each with set of configuration and enhanced registers, 64 bytes of Transmit (TX) and Receive (RX) FIFOs, and a fractional Baud Rate Generator (BRG). A global interrupt source register provides a complete interrupt status indication for all 8-channels to speed up interrupt parsing. The V258 device operates at 33/66MHz and features fully programmable TX and RX FIFO level triggers, automatic hardware and software flow control, and automatic RS-485 half duplex direction control output for software and hardware design simplification.

技术特性

Industry First Universal Board PCI Bus UART
Direct 3.3V and 5V PCI Bus Connection
PCI Bus Target revision 2.3 Signaling Compliant
32-bit Wide Data Read/Write Operation for Higher Data Throughput
Data Burst Operation for Faster Data Loading/Unloading
Global Interrupt Signal Register Increases Driver Efficiency
Each UART has 64-byte TX and RX FIFOs
Programmable TX and RX FIFO Trigger Level and FIFO Level Counters
Automatic RTS/CTS or DTR/DSR Hardware Flow Control
Automatic RS485 Direction Control Output with Selectable turn-around delay
Up to 6.125 MBps Data Rate
Pb-Free, RoHS Compliant Versions Offered

应用领域 APPLICATION

Universal PCI Bus Add-in Cards
Multi Serial Port Solution
Terminal Servers
Point-of-Sale Systems
Factory Automation Management
Process Control Machinery
Data Collection Servers
Systems Monitoring and Management
Ethernet to Serial Ports

订购信息 Ordering Information

器件型号	有害物质限制	最低温度	最高温度	状态	立刻购买	申请样片
XR17D158CV-F		0	70	Active
XR17D158CVTR-F		0	70	Active
XR17D158IV-F		-40	85	Active
XR17D158IVTR-F		-40	85

技术指标

频道	8
中央处理器接口	PCI Bus 2.2
数据传输速率@5/3.3/2.5V	6.25/4/na
Max Data Rate @ 5/3.3/2.5/1.8V (Mbps)	6.25/4/na/na
发送器/接收器FIFO(Bytes)	64/64
发送器/接收器FIFOCtrs	Yes
Program Trigger Levels	Yes
自动RS-485	Yes
Fractional Baud Rate Gen.	No
Pwr Down Mode	Yes
5VTol输入	Yes
电压供应	3.0-3.6, 4.5-5.5
No. ofGPIOs	8
封装	LQFP-144

功能框图 Functional Block Diagram

应用技术支持与电子电路设计开发资源下载	版本信息	大小
XR17D158 数据资料DataSheet下载:pdf	Rev.V2	2 页