Datasheet > XR16M2750

XR16M2750

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
53页	1079K
描述
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

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XR16M2750 数据手册

PRELIMINARY

XR16M2750

HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

JUNE 2007

REV. P1.0.0

FEATURES

GENERAL DESCRIPTION

• 1.62 to 3.6 Volt Operation

The XR16M2750 (M2750) is a high performance

dual universal asynchronous receiver and transmitter

(UART) with 64 byte TX and RX FIFOs. The device

operates from 1.62 to 3.6 volts and is pin-to-pin

compatible to Exar’s ST16C2550 and XR16V2750.

The M2750 register set is identical to the XR16V2750

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 M2750 is available in 48-pin

TQFP and 32-pin QFN packages.

• Pin-to-pin compatible to Exar’s XR16V2750 and

TI’s TL16C752B in the 48-TQFP package

• Two independent UART channels

■ Register set compatible to XR16V2750

■ Data rate of up to 8 Mbps at 3.3 V, 6.25 Mbps

at 2.5 V and 4 Mbps at 1.8 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#

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

■ Wireless Infrared (IrDA 1.0) Encoder/Decoder

■ Automatic sleep mode

APPLICATIONS

■ Full modem interface

• Portable Appliances

• Device Identification and Revision

• Telecommunication Network Routers

• Ethernet Network Routers

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

(upto 64MHz) input

• Cellular Data Devices

• 48-TQFP and 32-QFN packages

• Factory Automation and Process Controls

FIGURE 1. XR16M2750 BLOCK DIAGRAM

1.62 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...53

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与XR16M2750相关器件

型号	品牌	获取价格	描述	数据表
XR16M2750IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2750IL32-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 1MBps, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, GREEN, QFN-32
XR16M2750IM48	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2750IM48-F	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2751	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE
XR16M2751_07	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2751IM48	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO AND POWERSAVE
XR16M2752	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752_07	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752IJ44	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

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