Datasheet > 微控制器和处理器 > 串行 IO/通信控制器> XR16L580

XR16L580

更新时间： 2024-09-16 22:41:15

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	275K
描述
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE

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XR16L580 数据手册

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XR16L580

SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE

JANUARY 2004

REV.1.2.0

FEATURES

GENERAL DESCRIPTION

• Industry Smallest Full Featured UART

• 2.25V to 5.5V Operation

The XR16L580 (L580) is a 2.25 to 5.5 volt Universal

Asynchronous Receiver and Transmitter (UART) with

5 volt tolerant inputs and a reduced pin count. It is

pin-to-pin and software compatible to industry

standard 16C450, 16C550, ST16C580, ST16C650A

and XR16C850 UARTs. It has 16 bytes of TX and RX

FIFOs and is capable of operating up to serial data

rate of 1 Mbps at 2.25 volt supply voltage. The

internal registers is compatible to the 16C550

features to support today’s high bandwidth data

communication needs. The enhanced features

include Intel or Motorola data bus interface to match

your CPU interface, automatic hardware and

software flow control to prevent data loss, selectable

RX and TX trigger levels for more efficient interrupt

service, wireless infrared (IrDA) encoder/decoder for

wireless applications and a unique Power-Save mode

to increase battery operating time. The device comes

in the 48-TQFP and a very small 32-QFN packages in

industrial temperature range.

• 5V Tolerant Inputs

• Intel/Motorola Bus Select

• ’0 ns’ Address Hold Time (T_AHand T_ADH

)

• Pin and Software Compatible to industry standard

16C450, 16C550, ST16C580, ST16C650A and

XR16C850 in the 48-TQFP package.

• 16-byte Transmit FIFO

• 16-byte Receive FIFO with Errors Flags

• Selectable RX and TX FIFO Trigger Levels

• Automatic Hardware (RTS/CTS) Flow Control

• Automatic Software (Xon/Xoff) Flow Control

• Up to 3.125 Mbps Data Rate at 5V and 2 Mbps at

3.3V and 1 Mbps at 2.25V Operation with External

Clock Input

• Infrared (IrDA) Encoder/Decoder

• Complete Modem Interface

APPLICATIONS

• Power-Save Mode to conserve battery power

• Sleep Mode with Wake-up Interrupt

• Small 32-QFN (5x5x0.9mm) package

• Handheld Terminals and Tablets

• Handheld Computers

• Wireless Portable Point-of-Sale Terminals

• Cellular Phones DataPort

• Compatible to standard 48-TQFP packages

without the following redundant signals: IOR,

IOW, CS1, CS2, TXRDY#, RXRDY#, RCLK,

BAUDOUT#, OP1# and OP2#

• GPS Devices

• Personal Digital Assistants Modules

• Battery Operated Instruments

• Industrial Temperature Grade(-40 to +85^oC)

FIGURE 1. BLOCK DIAGRAM

VCC

(2.25 to 5.5 V)

PwrSave

*5 V Tolerant Inputs

A2:A0

GND

D7:D0

IOR#

UART

TX, RX,

IOW# (R/W#)

CS#

16 Byte TX FIFO

UART

RTS#, CTS#,

DTR#, DSR#,

RI#, CD#

Regs

ENDEC

TX & RX

INT (IRQ#)

Intel or

Motorola

Data Bus

Interface

RESET

(RESET#)

16 Byte RX FIFO

BRG

16/68#

XTAL1

XTAL2

Crystal Osc/Buffer

GNugget_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...47

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与XR16L580相关器件

型号	品牌	获取价格	描述	数据表
XR16L580_07	EXAR	获取价格	SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L580IL	EXAR	获取价格	SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L580IL24	EXAR	获取价格	SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L580IL24TR-F	EXAR	获取价格	暂无描述
XR16L580IL28	EXAR	获取价格	SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L580ILTR-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 0.390625MBps, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, GREEN,
XR16L580IM	EXAR	获取价格	SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L651	EXAR	获取价格	2.25V TO 5.5V UART WITH 32-BYTE FIFO
XR16L651CM	EXAR	获取价格	2.25V TO 5.5V UART WITH 32-BYTE FIFO
XR16L651CM-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 0.390625MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GR

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