Datasheet > XR16M2650

XR16M2650

更新时间： 2024-11-07 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	1112K
描述
HIGH PERFORMANCE LOW VOLTAGE DUART WITH 32-BYTE FIFO

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XR16M2650 数据手册

XR16M2650

HIGH PERFORMANCE LOW VOLTAGE DUART WITH 32-BYTE FIFO

MAY 2007

REV. 1.0.2

FEATURES

GENERAL DESCRIPTION

• 1.62 to 3.63 Volt Operation

The XR16M2650 (M2650) is a high performance

dual universal asynchronous receiver and transmitter

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

operates from 1.62 to 3.63 volts and is pin-to-pin and

software compatible to the ST16C2550, XR16V2550

and XR16V2650. 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 M2650 is available in 48-pin

TQFP and 32-pin QFN packages.

• Pin-to-pin and software compatible to ST16C2550

in the 48-TQFP package

• Pin-to-pin and software compatible to XR16L2550,

XR16V2550 and XR16V2650

• Two independent UART channels

■ Register set is 16550 compatible

■ Data rate of up to 16 Mbps at 3.3 V

■ Data rate of up to 12.5 Mbps at 2.5 V

■ Data rate of up to 8 Mbps at 1.8V

■ 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

APPLICATIONS

• Portable Appliances

• Telecommunication Network Routers

• Ethernet Network Routers

■ Full modem interface

• Device Identification and Revision

• Cellular Data Devices

• Crystal oscillator (up to 24MHz) or external clock

(up to 64MHz) input

• Factory Automation and Process Controls

• 48-TQFP and 32-QFN packages

FIGURE 1. XR16M2650 BLOCK DIAGRAM

1.62 to 3.63 Volt VCC

A2:A0

D7:D0

GND

IOR#

IOW#

UART Channel A

TXA, RXA, DTRA#,

32 Byte TX FIFO

CSA#

CSB#

UART

DSRA#, RTSA#,

CTSA#, CDA#, RIA#,

OP2A#

Regs

ENDEC

TX & RX

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

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与XR16M2650相关器件

型号	品牌	获取价格	描述	数据表
XR16M2650IL32	EXAR	获取价格	HIGH PERFORMANCE LOW VOLTAGE DUART WITH 32-BYTE FIFO
XR16M2650IM48	EXAR	获取价格	HIGH PERFORMANCE LOW VOLTAGE DUART WITH 32-BYTE FIFO
XR16M2651	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE FEATURE
XR16M2651IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE FEATURE
XR16M2651IL32-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
XR16M2651IM48	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE FEATURE
XR16M2651IM48-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
XR16M2750	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
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

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