Datasheet > XR88C6840

XR88C6840

更新时间： 2024-10-02 00:59:51

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
101页	2505K
描述
Two Full Duplex, Independent Channels

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中文翻译

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数据手册

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XR88C6840 数据手册

XR88C681

CMOS Dual Channel

UART (DUART)

June 2006

FEATURES

D Two Full Duplex, Independent Channels

D Asynchronous Receiver and Transmitter

D Quadruple-Buffered Receivers and Dual Buffered

Transmitters

D Programmable Stop Bits in 1/16 Bit Increments

D Internal Bit Rate Generators with More than 23 Bit

Rates

D Programmable Interrupt Daisy Chain

D 8 General Purpose Outputs (40 Pin DIP and 44 Pin

PLCC Packages Only)

D 7 General Purpose Inputs with Change of States

Detectors on Inputs (40 Pin DIP and 44 Pin PLCC

Packages Only)

D Multi-Drop Mode Compatible with 8051 Nine Bit

Mode

D Independent Bit Rate Selection for Each Transmitter

and Receiver

D On-Chip Oscillator for Crystal

D Standby Mode to Reduce Operating Power

D Compatible with the Motorola MC2681 and

Signetics SCC2692 devices

D External Clock Capability

D Maximum Bit Rate: 1X Clock - 1Mb/s, 16X Clock -

125kb/s

D Advanced CMOS Low Power Technology

D Normal, AUTOECHO, Local LOOPBACK and

Remote LOOPBACK Modes

D Multi-function 16 Bit Counter/Timer

D Interrupt Output with Eight Maskable Interrupt

Conditions

APPLICATIONS

D Multimedia Systems

D Serial to Parallel/Parallel to Serial Converter

D DTE for Modem Communication Systems

D Interrupt Vector Output on Acknowledge (40 Pin DIP

and 44 Pin PLCC Packages Only)

GENERAL DESCRIPTION

The EXAR Dual Universal Asynchronous Receiver and

Transmitter (DUART) is a data communications device that

provides two fully independent full duplex asynchronous

communication 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.

The DUART is fabricatedusing advancedtwo layer metal,

with a high performance density EPI/CMOS 1.8 process

to provide high performance and low power consumption,

and is packaged in a 40 pin PDIP, a 28 pin PDIP, and a 44

pin PLCC.

The XR88C681 device offers a single IC solution for the

8080/85, 8086/88, Z80, Z8000, 68xx and 65xx

microprocessor families.

ORDERING INFORMATION

Operating

Part No.

Pin Package

44 PLCC

Temperature Range

XR88C681CJ

XR88C681CN/40

XR88C681CP/28

XR88C681CP/40

XR88C681J

0°C to 70°C

40 CDIP

28 PDIP

40 PDIP

44 PLCC

40 CDIP

28 PDIP

40 PDIP

0°C to 70°C

-40°C to +85°C

XR88C681N/40

XR88C681P/28

XR88C681P/40

Rev. 2.11

E2006

12 3 4 5 6 7...101

中文翻译

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与XR88C6840相关器件

型号	品牌	获取价格	描述	数据表
XR88C92	EXAR	获取价格	DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
XR88C92_05	EXAR	获取价格	DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
XR88C92CJ	EXAR	获取价格	DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
XR88C92CJ-0A-EVB	EXAR	获取价格	EVAL BOARD FOR XR88C92 44PLCC
XR88C92CJTR-F	EXAR	获取价格	IC UART FIFO DUAL 44PLCC
XR88C92CP	EXAR	获取价格	DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
XR88C92CV	EXAR	获取价格	DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
XR88C92CV-0A-EVB	EXAR	获取价格	EVAL BOARD FOR XR88C92 44TQFP
XR88C92CV-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 0.125MBps, CMOS, PQFP44, GREEN, TQFP-44
XR88C92CVTR-F	EXAR	获取价格	IC UART FIFO DUAL 44LQFP

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