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XR16V798IQ PDF预览

XR16V798IQ

更新时间: 2024-02-05 10:50:48
品牌 Logo 应用领域
艾科嘉 - EXAR /
页数 文件大小 规格书
56页 1317K
描述
HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL BAUD RATE

XR16V798IQ 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:QFP,Reach Compliance Code:compliant
风险等级:2.32地址总线宽度:8
边界扫描:NO总线兼容性:IRDA; RS-232; RS-422; RS-485
最大时钟频率:64 MHz通信协议:ASYNC, BIT
数据编码/解码方法:NRZ最大数据传输速率:1 MBps
外部数据总线宽度:8JESD-30 代码:R-PQFP-G100
JESD-609代码:e3长度:20 mm
低功率模式:YES湿度敏感等级:4
串行 I/O 数:8端子数量:100
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:QFP
封装形状:RECTANGULAR封装形式:FLATPACK
峰值回流温度(摄氏度):NOT SPECIFIED座面最大高度:3.4 mm
最大供电电压:3.6 V最小供电电压:2.25 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:14 mmuPs/uCs/外围集成电路类型:SERIAL IO/COMMUNICATION CONTROLLER, SERIAL

XR16V798IQ 数据手册

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xr  
XR16V798  
HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL BAUD RATE  
JANUARY 2006  
REV. 1.0.0  
FEATURES  
GENERAL DESCRIPTION  
2.25V to 3.6V with 5V Tolerant Serial Inputs  
Single Interrupt output for all 8 UARTs  
A Global Interrupt Source Register for all 8 UARTs  
5G “Flat” UART Registers for easier programming  
Simultaneous Initialization of all UART channels  
1
The XR16V798 (798), is a 2.25V to 3.6V octal  
Universal Asynchronous Receiver and Transmitter  
(UART) with 5V tolerant serial (modem) inputs. The  
highly integrated device is designed for high  
bandwidth requirement in communication systems.  
The global interrupt source register provides a  
complete interrupt status indication for all 8 channels  
to speed up interrupt parsing. Each UART has its own  
16C550 compatible set of configuration registers, TX  
and RX FIFOs of 64 bytes, fully programmable  
transmit and receive FIFO trigger levels, TX and RX  
FIFO level counters, automatic RTS/CTS or DTR/  
DSR hardware flow control with programmable  
hysteresis, autoamtic software (Xon/Xoff) flow  
control, RS-485 half-duplex direction control with  
programmable turn-around delay, Intel or Motorola  
bus interface and sleep mode with a wake-up  
indicator.  
A General Purpose Command-driven 16-bit  
Timer/counter  
Sleep Mode with Wake-up Indication  
Highly Integrated Device for Space Saving  
Each UART is independently controlled with:  
16C550 Compatible 5G Register Set  
64-byte Transmit and Receive FIFOs  
Fractional Baud Rate Generator  
Transmit and Receive FIFO Level Counters  
Programmable TX and RX FIFO Trigger Level  
Automatic RTS/CTS or DTR/DSR Flow Control  
Automatic Xon/Xoff Software Flow Control  
NOTE: Covered by US patents #5,649,122 and #5,949,787  
APPLICATIONS  
RS485 HDX Control Output with Selectable  
Remote Access Servers  
Turn-around Delay  
Ethernet Network to Serial Ports  
Network Management  
Factory Automation and Process Control  
Point-of-Sale Systems  
Infrared (IrDA 1.0) Data Encoder/Decoder  
Programmable Data Rate with Prescaler  
Up to 8 Mbps Serial Data Rate  
Pin compatible to XR16L788. Same 100-pin QFP  
Package (14x20x3 mm)  
Multi-port RS-232/RS-422/RS-485 Cards  
FIGURE 1. BLOCK DIAGRAM  
UART Channel 0  
64 Byte TX FIFO  
TX0, RX0, DTR0#,  
UART  
Regs  
IR  
DSR0#, RTS0#,  
CTS0#, CD0#, RI0#  
TX & RX  
ENDEC  
BRG  
64 Byte RX FIFO  
RST#  
A7:A0  
D7:D0  
UART Channel 1  
UART Channel 2  
UART Channel 3  
UART Channel 4  
UART Channel 5  
Data Bus  
Device  
IOR#  
IOW#  
CS#  
Interface  
Configuration  
Registers  
INT#  
16/68#  
UART Channel 6  
TX7, RX7, DTR7#,  
DSR7#, RTS7#,  
UART Channel 7  
16-bit  
Timer/Counter  
CTS7#, CD7#, RI7#  
XTAL1  
XTAL2  
TMRCK  
Crystal Osc/Buffer  
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com  

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