XR16V2750

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
51页	1074K
描述
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

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XR16V2750 数据手册

PRELIMINARY

XR16V2750

HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

JUNE 2006

REV. P1.0.0

FEATURES

GENERAL DESCRIPTION

• 2.25 to 3.6 Volt Operation

• 5 Volt Tolerant Inputs

The XR16V2750 (V2750) is a high performance dual

universal asynchronous receiver and transmitter

(UART) with 64 byte 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 XR16L2750. The V2750 register set

is identical to the XR16L2750 and is compatible to the

ST16C2550 and the XR16C2850 enhanced features.

It supports the Exar’s enhanced features of

programmable FIFO trigger level and FIFO level

counters, automatic hardware (RTS/CTS) and

software flow control, automatic RS-485 half duplex

direction control output 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 8

Mbps at 3.3 Volt and 8X sampling clock. The V2750

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

packages.

• Pin-to-pin compatible to Exar’s XR16L2750 and

TI’s TL16C752B in the 48-TQFP package

• Two independent UART channels

■ Register set compatible to XR16L2750

■ Data rate of up to 8 Mbps at at 3.3 V, and

6.25 Mbps at 2.5 V with 8X sampling rate

■ Fractional Baud Rate Generator

■ Transmit and Receive FIFOs of 64 bytes

■ Programmable TX and RX FIFO Trigger Levels

■ Transmit and Receive FIFO Level Counters

■ Automatic Hardware (RTS/CTS) Flow Control

■ Selectable Auto RTS Flow Control Hysteresis

■ Automatic Software (Xon/Xoff) Flow Control

■ Automatic RS-485 Half-duplex Direction

Control Output via RTS#

■ Wireless Infrared (IrDA 1.0) Encoder/Decoder

■ Automatic sleep mode

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

APPLICATIONS

■ Full modem interface

• Portable Appliances

• Telecommunication Network Routers

• Ethernet Network Routers

• Device Identification and Revision

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

(upto 64MHz) input

• 48-TQFP and 32-QFN packages

• Cellular Data Devices

• Factory Automation and Process Controls

FIGURE 1. XR16V2750 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#,

64 Byte TX FIFO

CSA#

CSB#

UART

DSRA#, RTSA#,

DTSA#, CDA#, RIA#,

OP2A#

Regs

ENDEC

TX & RX

8-bit Data

Bus

Interface

INTA

INTB

BRG

64 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

2750BLK

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

12 3 4 5 6 7...51

中文翻译

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与XR16V2750相关器件

型号	品牌	获取价格	描述	数据表
XR16V2750_07	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2750_0709	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2750IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2750IL-F	EXAR	获取价格	暂无描述
XR16V2750IM	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2750IM-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 1MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GREEN, TQ
XR16V2751	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE FEATURE
XR16V2751_07	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE
XR16V2751_0709	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE
XR16V2751IM	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE FEATURE

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