Datasheet > 微控制器和处理器 > 串行 IO/通信控制器> XR16V2650

XR16V2650

更新时间： 2024-11-22 04:23:31

品牌	Logo	应用领域
艾科嘉 - EXAR		先进先出芯片
页数	文件大小	规格书
47页	988K
描述
HIGH PERFORMANCE DUART WITH 32-BYTE FIFO

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中文翻译

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数据手册

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XR16V2650 数据手册

PRELIMINARY

XR16V2650

HIGH PERFORMANCE DUART WITH 32-BYTE FIFO

JUNE 2006

REV. P1.0.0

FEATURES

GENERAL DESCRIPTION

• 2.25 to 3.6 Volt Operation

• 5 Volt Tolerant Inputs

• Pin-to-pin compatible to ST16C2550, XR16C2550,

XR16L2550 and XR16V2550 in the 48-TQFP

package

The XR16V2650 (V2650) is a high performance dual

universal asynchronous receiver and transmitter

(UART) with 32 bytes TX and RX FIFOs. The device

operates from 2.25 to 3.6 volts with 5 Volt tolerant

inputs and is pin-to-pin compatible to Exar’s

ST16C2550, XR16C2550 and XR16V2550. The

V2650 register set is compatible to the ST16C2550,

the XR16L2550 and the XR16V2550. It supports

Exar’s enhanced features of selectable FIFO trigger

level, automatic hardware (RTS/CTS) and software

flow control, and a complete modem interface.

Onboard registers provide the user with operational

status and data error flags. An internal loopback

capability allows system diagnostics. Independent

programmable baud rate generators are provided in

each channel to select data rates up to 16 Mbps at

3.3 Volt with 4X sampling clock. The V2650 is

available in 48-pin TQFP and 32-pin QFN packages.

• Two independent UART channels

■ Register set compatible to XR16V2550

■ Data rate of up to 16 Mbps at 3.3 V, and 12.5

Mbps at 2.5 V with 4X sampling rate

■ Fractional Baud Rate Generator

■ Transmit and Receive FIFOs of 32 bytes

■ Selectable TX and RX FIFO Trigger Levels

■ Automatic Hardware (RTS/CTS) Flow Control

■ Automatic Software (Xon/Xoff) Flow Control

■ Wireless Infrared (IrDA 1.0) Encoder/Decoder

■ Automatic sleep mode

NOTE: 1 Covered by U.S. Patent #5,649,122

■ Full modem interface

APPLICATIONS

• Device Identification and Revision

• Portable Appliances

• Telecommunication Network Routers

• Ethernet Network Routers

• Crystal oscillator (up to 32MHz) or external clock

(up to 64MHz) input

• 48-TQFP and 32-QFN packages

• Cellular Data Devices

• Factory Automation and Process Controls

FIGURE 1. XR16V2650 BLOCK DIAGRAM

* 5 Volt Tolerant Inputs

2.25 to 3.6 Volt VCC

A2:A0

D7:D0

GND

IOR#

IOW#

UART Channel A

TXA, RXA, DTRA#,

DSRA#, RTSA#,

DTSA#, CDA#, RIA#,

OP2A#

32 Byte TX FIFO

CSA#

CSB#

UART

Regs

TX & RX

ENDEC

8-bit Data

Bus

Interface

INTA

INTB

BRG

32 Byte RX FIFO

TXRDYA#

TXRDYB#

RXRDYA#

RXRDYB#

TXB, RXB, DTRB#,

DSRB#, RTSB#,

CTSB#, CDB#, RIB#,

OP2B#

UART Channel B

(same as Channel A)

Reset

XTAL1

XTAL2

Crystal Osc/Buffer

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com

12 3 4 5 6 7...47

中文翻译

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与XR16V2650相关器件

型号	品牌	获取价格	描述	数据表
XR16V2650_07	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO
XR16V2650IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO
XR16V2650IM	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO
XR16V2650IM-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 2MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GREEN, TQ
XR16V2651	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE
XR16V2651_07	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE
XR16V2651IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE
XR16V2651IL-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 2MBps, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, GREEN, QFN-32
XR16V2651IM	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE
XR16V2651IM-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 2MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GREEN, TQ

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