Datasheet > 微控制器和处理器 > 串行 IO/通信控制器> XR16L2751IMTR-F

XR16L2751IMTR-F

更新时间： 2024-09-17 13:16:11

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
52页	936K
描述
Serial I/O Controller, CMOS, PQFP48,

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中文翻译

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技术参数
数据手册
替代型号

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XR16L2751IMTR-F 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
Reach Compliance Code：	compliant	风险等级：	5.75
Is Samacsys：	N	JESD-30 代码：	S-PQFP-G48
JESD-609代码：	e3	端子数量：	48
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QFP
封装等效代码：	TQFP48,.35SQ	封装形状：	SQUARE
封装形式：	FLATPACK	电源：	2.5/5 V
认证状态：	Not Qualified	子类别：	Serial IO/Communication Controllers
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	uPs/uCs/外围集成电路类型：	SERIAL IO/COMMUNICATION CONTROLLER, SERIAL
Base Number Matches：	1

XR16L2751IMTR-F 数据手册

XR16L2751

2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE

OCTOBER 2005

REV. 1.2.2

FEATURES

GENERAL DESCRIPTION

• 2.25 to 5.5 Volt Operation

• 5 Volt Tolerant Inputs

• Functionally Compatible to ST16C2550 and

XR16C2850 with 4 additional inputs

The XR16L2751 (2751) is a low voltage dual

universal asynchronous receiver and transmitter

(UART) with 5 Volt tolerant inputs. The device

includes

additional capabilities over the

XR16L2750: Intel and Motorola data bus selection

and a “PowerSave” mode to further reduce sleep

current to a minimum during sleep mode. The 2751’s

XR16C2850 but with added functions. It supports the

Exar’s enhanced features of 64 bytes of TX and RX

FIFOs, programmable FIFO trigger level, FIFO level

counters, automatic hardware and software flow

control, automatic RS-485 half duplex direction

control with programmable turn-around delay, and a

complete modem interface. Onboard registers

provide the user with operational status and data

error tags. An internal loopback capability allows

onboard diagnostics. Independent programmable

baud rate generator is provided in each UART

channel to support data rates up to 6.25 Mbps.

• Intel or Motorola Data Bus Interface Select

• Two Independent UARTs

■ Up to 6.25 Mbps at 5 Volt, 4 Mbps at 3.3 Volt,

and 3 Mbps at 2.5 Volt with 8X sampling rate

■ 64 bytes of Transmit and Receive FIFOs

■ Transmit and Receive FIFO Level Counters

■ Programmable TX and RX FIFO Trigger Levels

■ Automatic Hardware (RTS/CTS) Flow Control

■ Selectable RTS Flow Control Hysteresis.

■ Automatic Software (Xoff/Xon) Flow Control

■ Automatic RS-485 2-wire Half-duplex Direction

Control to the Transceiver via RTS#

■ Full Modem Interface

■ Infrared Receive and Transmit Encoder/

NOTE: 1 Covered by U.S. Patent #5,649,122 and #5,949,787

decoder

APPLICATIONS

• PowerSave Feature reduces sleep current to 15

µA at 3.3 Volt

• Portable and Battery Operated Appliances

• Wireless Access Servers

• Ethernet Network Routers

• Cellular Data Devices

• Telecommunication Network Routers

• Factory Automation and Process Controls

• Device Identification

• Crystal or external clock input

• Industrial and Commercial Temperature ranges

• 48 TQFP Package (7 x 7 x 1.0 mm)

FIGURE 1. XR16L2751 BLOCK DIAGRAM

*5 Volt Tolerant Inputs

(Except XTAL1)

2.25 to 5.5 Volt VCC

GND

PwrSave

A2:A0

D7:D0

UART Channel A

IOR# (VCC)

TXA, RXA, DTRA#,

DSRA#, RTSA#,

DTSA#, CDA#, RIA#,

OP2A#

IOW# (R/W#)

64 Byte TX FIFO

UART

CSA# (CS#)

CSB# (A3)

Regs

ENDEC

TX & RX

BRG

INTA (IRQ#)

INTB (logic 0)

64 Byte RX FIFO

TXB, RXB, DTRB#,

DSRB#, RTSB#,

CTSB#, CDB#, RIB#,

OP2B#

TXRDYA#

TXRDYB#

RXRDYA#

RXRDYB#

Intel or

Motorola

Data Bus

Interface

UART Channel B

(same as Channel A)

XTAL1

XTAL2

Reset (Reset#)

16/68#

Crystal Osc/Buffer

CLKSEL

HDCNTL#

2751BLK

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

12 3 4 5 6 7...52

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XR16L2751IMTR-F 替代型号

型号	品牌	替代类型	描述	数据表
XR16L2751IM-F	EXAR	完全替代	Serial I/O Controller, 2 Channel(s), 0.78125MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GRE

与XR16L2751IMTR-F相关器件

型号	品牌	获取价格	描述	数据表
XR16L2752	EXAR	获取价格	2.25V TO 5.5V DUART WITH 64-BYTE FIFO
XR16L2752CJ	EXAR	获取价格	2.25V TO 5.5V DUART WITH 64-BYTE FIFO
XR16L2752CJ-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 0.78125MBps, CMOS, PQCC44, GREEN, PLASTIC, LCC-44
XR16L2752IJ	EXAR	获取价格	2.25V TO 5.5V DUART WITH 64-BYTE FIFO
XR16L2752IJ-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 0.78125MBps, CMOS, PQCC44, GREEN, PLASTIC, LCC-44
XR16L570	EXAR	获取价格	SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L570_07	EXAR	获取价格	SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L570IL24	EXAR	获取价格	SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L570IL24-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 0.5MBps, CMOS, 4 X 4 MM, 0.90 MM HEIGHT, GREEN, QFN-2
XR16L570IL32	EXAR	获取价格	SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE

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