参数资料
型号: XR68C681CJ
厂商: EXAR CORP
元件分类: 微控制器/微处理器
英文描述: XR-68C681CJ PLCC 44 UART 2 CHANELS
中文描述: 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 74/77页
文件大小: 1566K
代理商: XR68C681CJ
XR68C681 -Dual UART with Two Fully Independent Full Duplex Asynchronous Communications Channels
Support
Design
XR68C681
Dual UART with Two Fully Independent Full Duplex
Asynchronous Communications Channels
Features
q
Two Full Duplex, Independent Channels
q
Asynchronous Receiver and Transmitter
q
Quadruple-Buffered Receiver, Dual Buffered Transmitter
q
Programmable Stop Bits in 1/16 Bit Increments
q
Internal Bit Rate Generators with 23 Different Bit Rates
q
Independent Bit Rate Selection for Each Transmitter and
Receiver
q
External Clock Capability
q
Maximum Bit Rate: 1X Clock - 1Mb/s, 16X Clock - 125Kb/s
q
Normal, AUTOECHO, Local LOOPBACK and Remote
LOOPBACK Modes
q
Multi-function 16 Bit Counter/Timer
q
Interrupt Output with Eight Maskable Interrupt Conditions
q
Interrupt Vector Output on Acknowledge
q
8 General Purpose Outputs
q
6 General Purpose Inputs with Change of States Detectors on
Inputs
q
On-chip Oscillator for Crystal
q
Standby Mode to Reduce Operating Power
q
Compatible with the Motorola MC68681 and the Signetic
SCC68692 Devices
q
Advanced CMOS Low Power Technology
q
Pb-Free, RoHS Compliant Versions Offered
Applications
q
Multimedia Systems
q
Serial to Parallel/Parallel to Serial Converter
q
DTE for Modem Communication Systems
Description
The EXAR Dual Universal Asynchronous Receiver and Transmitter
(DUART) is a data communications device that provides two fully
independent full duplex asynchronous communications channels in a
single package. The DUART is designed for use in microprocessor
based systems and may be used in a polled or interrupt driven
environment.
Specifications
CH
2
CPUInterface
Motorola
Data Rate@5/3.3/2.5V 1.0/na/na
Tx/RxFIFO(Bytes)
1/3
Tx/RxFIFOCtrs
No
Tx/RxFIFOINT Trig
No/No
AutoRTS/CTS
Yes
IrDaSup
No
5VTolInputs
No
Sup V
5
Pkgs
CDIP-40,
PDIP-40,
PLCC-44
Documents
Datasheets
Application Notes
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XR68C681 (1 of 2) [30-Jul-09 1:36:41 PM]
相关PDF资料
PDF描述
XS170 Multifunction Telecom Switch
XS170S Multifunction Telecom Switch
XS170STR Multifunction Telecom Switch
XSD200 High-Speed Analog N-Channel Enhancement-Mode DMOS FETS
XSM2BG883W T-1 SINGLE COLOR LED, GREEN, 3 mm
相关代理商/技术参数
参数描述
XR68C681CJ44 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC
XR68C681CJ-F 功能描述:UART 接口集成电路 0.5V-2V UART temp 0C to 70C RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR68C681CJ-F 制造商:Exar Corporation 功能描述:IC UART 2CH 68C681 PLCC44
XR68C681CJTR-F 功能描述:UART 接口集成电路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR68C681CP 功能描述:UART 接口集成电路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel