Datasheet > XR16M680

XR16M680

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
57页	1128K
描述
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO

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XR16M680 数据手册

XR16M680

1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO

SEPTEMBER 2008

REV. 1.0.0

FEATURES

GENERAL DESCRIPTION

•

Pin-to-pin compatible with XR16L580 in 32-QFN

and 48-TQFP packages

The XR16M680 (M680) is an enhanced Universal

Asynchronous Receiver and Transmitter (UART) with

32 bytes of transmit and receive FIFOs, selectable

transmit and receive FIFO trigger levels, automatic

hardware and software flow control, and data rates of

up to 16 Mbps at 3.3V, 12.5 Mbps at 2.5V and 7.5

Mbps at 1.8V with 4X data sampling rate.

•

Intel or Motorola Bus Interface select

16Mbps maximum data rate

Selectable TX/RX trigger levels

TX/RX FIFO Level Counters

The Auto RS-485 Half-Duplex Direction control

feature simplifies both the hardware and software for

half-duplex RS-485 applications. In addition, the

Multidrop mode with Auto Address detection

increases the performance by simplifying the

software routines.

Independent TX/RX Baud Rate Generator

Fractional Baud Rate Generator

Auto RTS/CTS Hardware Flow Control

Auto XON/XOFF Software Flow Control

Auto RS-485 Half-Duplex Direction Control

Multidrop mode w/ Auto Address Detect

Sleep Mode with Automatic Wake-up

PowerSave mode

The Independent TX/RX Baud Rate Generator

feature allows the transmitter and receiver to operate

at different baud rates. Power consumption of the

M680 can be minimized by enabling the sleep mode

and PowerSave mode.

The M680 has a 16550 compatible register set that

provide users with operating status and control,

receiver error indications, and modem serial interface

controls. An internal loopback capability allows

onboard diagnostics. The M680 is available in 32-pin

QFN, 48-pin TQFP and 25-pin BGA packages. All

three packages offer both the 16 mode (Intel bus)

interface and the 68 mode (Motorola bus) interface

which allows easy integration with Motorola

processors.

Infrared (IrDA 1.0 and 1.1) mode

1.62V to 3.63V supply operation

Crystal oscillator or external clock input

APPLICATIONS

•

Personal Digital Assistants (PDA)

Cellular Phones/Data Devices

Battery-Operated Devices

Global Positioning System (GPS)

Bluetooth

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

IGURE 1. XR16M680 BLOCK DIAGRAM

VCC

(1.62 to 3.63 V)

PwrSave

A2:A0

GND

D7:D0

IOR#

UART

TX, RX,

IOW# (R/W#)

CS#

32 Byte TX FIFO

UART

Regs

RTS#, CTS#,

DTR#, DSR#,

RI#, CD#

TX &

ENDEC

INT (IRQ#)

Intel or

Motorola

Data Bus

Interface

RESET

(RESET#)

32 Byte RX FIFO

BRG

16/68#

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...57

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与XR16M680相关器件

型号	品牌	获取价格	描述	数据表
XR16M680IB25	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
XR16M680IB25-0C-EB	EXAR	获取价格	EVAL BOARD FOR XR16M680-C 25BGA
XR16M680IB25-F	EXAR	获取价格	Serial I/O Controller, CMOS, PBGA25
XR16M680IL32	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
XR16M680IL32-0C-EB	EXAR	获取价格	EVAL BOARD FOR XR16M680-C 32QFN
XR16M680IL32-F	EXAR	获取价格	IC UART FIFO 32B 32QFN
XR16M680IM48	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
XR16M680IM48-0A-EB	EXAR	获取价格	EVAL BOARD FOR XR16M680-A 48TQFP
XR16M680IM48-0C-EB	EXAR	获取价格	EVAL BOARD FOR XR16M680-C 48TQFP
XR16M681	EXAR	获取价格	1.62V TO 3.63V UART WITH 32-BYTE FIFO AND VLIO INTERFACE

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