Datasheet > XR16M654

XR16M654

更新时间： 2024-11-22 07:07:23

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
58页	1260K
描述
1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO

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数据手册

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XR16M654 数据手册

XR16M654/654D

1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO

MAY 2008

REV. 1.0.0

FEATURES

GENERAL DESCRIPTION

•

Pin-to-pin compatible with ST16C454, ST16C554,

TI’s TL16C754B and NXP’s SC16C654B

The XR16M654 (M654) is an enhanced quad

Universal Asynchronous Receiver and Transmitter

(UART) each with 64 bytes of transmit and receive

FIFOs, programmable transmit and receive FIFO

trigger levels, automatic hardware and software flow

control, and data rates of up to 16 Mbps at 4X

sampling rate. Each UART has a set of registers that

provide the user with operating status and control,

receiver error indications, and modem serial interface

controls. An internal loopback capability allows

onboard diagnostics. The M654 is available in a 48-

pin QFN, 64-pin LQFP, 68-pin PLCC, 80-pin LQFP

and 100-pin QFP packages. The 64-pin and 80-pin

packages only offer the 16 mode interface, but the

48, 68 and 100 pin packages offer an additional 68

mode interface which allows easy integration with

Motorola processors. The XR16M654IV (64-pin)

offers three state interrupt output while the

XR16M654DIV provides continuous interrupt output.

The 100 pin package provides additional FIFO status

outputs (TXRDY# and RXRDY# A-D), separate

infrared transmit data outputs (IRTX A-D) and

channel C external clock input (CHCCLK). The

XR16M654 is compatible with the industry standard

ST16C554 and ST16C654/654D.

•

Intel or Motorola Data Bus Interface select

Four independent UART channels

■

Data rates of up to 16 Mbps

64 Byte Transmit FIFO

64 Byte Receive FIFO with error tags

4 Selectable TX and RX FIFO Trigger Levels

Automatic Hardware (RTS/CTS) Flow Control

Automatic Software (Xon/Xoff) Flow Control

Progammable Xon/Xoff characters

Wireless Infrared (IrDA 1.0) Encoder/Decoder

Full modem interface

•

1.62V to 3.63V supply operation

Sleep Mode with automatic wake-up

Crystal oscillator or external clock input

APPLICATIONS

•

Portable Appliances

Telecommunication Network Routers

Ethernet Network Routers

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

Cellular Data Devices

Factory Automation and Process Controls

IGURE 1. XR16M654 BLOCK DIAGRAM

1.62V to 3.6V VCC

GND

A2:A0

D7:D0

UART Channel A

64 Byte TX FIFO

IOR#

IOW#

CSA#

CSB#

UART

Regs

TXA, RXA, IRTXA, DTRA#,

DSRA#, RTSA#, CTSA#,

CDA#, RIA#

TX & RX

ENDEC

BRG

64 Byte RX FIFO

CSC#

CSD#

TXB, RXB, IRTXB, DTRB#,

DSRB#, RTSB#, CTSB#,

CDB#, RIB#

UART Channel B

(same as Channel A)

INTA

INTB

INTC

Data Bus

Interface

TXC, RXC, IRTXC, DTRC#,

DSRC#, RTSC#, CTSC#,

CDC#, RIC#

UART Channel C

(same as Channel A)

INTD

CHCCLK

TXRDY# A-D

RXRDY# A-D

TXD, RXD, IRTXD, DTRD#,

DSRD#, RTSD#, CTSD#,

CDD#, RID#

UART Channel D

(same as Channel A)

Reset

16/68#

INTSEL

XTAL1

Crystal Osc/Buffer

CLKSEL

XTAL2

654 BLK

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

12 3 4 5 6 7...58

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与XR16M654相关器件

型号	品牌	获取价格	描述	数据表
XR16M654D	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654DIV64	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654IJ68	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654IL48	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654IL48-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQCC48
XR16M654IQ100	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654IQ100-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQFP100
XR16M654IV64	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654IV64-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQFP64
XR16M654IV80	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO

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