Datasheet > XR16V2550_07

XR16V2550_07

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
48页	1094K
描述
HIGH PERFORMANCE DUART WITH 16-BYTE FIFO

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XR16V2550_07 数据手册

XR16V2550

HIGH PERFORMANCE DUART WITH 16-BYTE FIFO

MAY 2007

REV. 1.0.2

FEATURES

GENERAL DESCRIPTION

• 2.25 to 3.6 Volt Operation

• 5 Volt Tolerant Inputs

The XR16V2550 (V2550) is a high performance dual

universal asynchronous receiver and transmitter

(UART) with 16 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 and XR16C2550. The V2550 register set

is compatible to the ST16C2550 and the XR16L2550.

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 V2550

is available in 48-pin TQFP and 32-pin QFN

packages.

• Pin-to-pin compatible to ST16C2550, XR16C2550

and XR16L2550 in the 48-TQFP package

• Two independent UART channels

■ Register set compatible to XR16L2550

■ 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 16 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

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

(up to 64MHz) input

• Telecommunication Network Routers

• Ethernet Network Routers

• 48-TQFP and 32-QFN packages

• Cellular Data Devices

• Factory Automation and Process Controls

FIGURE 1. XR16V2550 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#,

16 Byte TX FIFO

CSA#

CSB#

UART

DSRA#, RTSA#,

DTSA#, CDA#, RIA#,

OP2A#

Regs

ENDEC

TX & RX

8-bit Data

Bus

Interface

INTA

INTB

BRG

16 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...48

中文翻译

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与XR16V2550_07相关器件

型号	品牌	获取价格	描述	数据表
XR16V2550IL	EXAR	获取价格	Telecom IC
XR16V2550IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 16-BYTE FIFO
XR16V2550IL-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
XR16V2550ILTR-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQCC32
XR16V2550IM	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 16-BYTE FIFO
XR16V2550IM-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
XR16V2550IMTR-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQFP48
XR16V2551	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 16-BYTE FIFO AND POWERSAVE FEATURE
XR16V2551_07	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 16-BYTE FIFO AND POWERSAVE FEATURE
XR16V2551IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 16-BYTE FIFO AND POWERSAVE FEATURE

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