Datasheet > XR28V384IM48-0A-EB

XR28V384IM48-0A-EB

更新时间： 2024-11-03 00:58:55

品牌	Logo	应用领域
艾科嘉 - EXAR		PC 先进先出芯片
页数	文件大小	规格书
42页	511K
描述
XR28V384 3.3V QUAD LPC UART WITH 128-BYTE FIFO

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XR28V384

3.3V QUAD LPC UART WITH 128-BYTE FIFO

REV. 1.0.0

NOVEMBER 2013

FEATURES

GENERAL DESCRIPTION

x 128 Byte Transmit and Receive FIFO

x Compliant to LPC 1.1 Specifications

x -40°C to +85°C Industrial Temp Operation

x Watchdog Timer with WDTOUT# signal

x 4 Independent UART channels

The XR28V384 (V384) is

quad Universal

Asynchronous Receiver and Transmitter (UART) for

the Intel Low Pin Count (LPC) bus interface. This

device can replace or supplement a Super I/O device

to add additional serial ports to the system.

The V384 UARTs support any 16-bit I/O address

supported by the system. The register set is based on

the industry standard 16550 UART, so the V384

operates with the standard serial port drivers without

requiring a custom driver to be installed.

■ Programmable I/O mapped base addresses

■ Data rates up to 3 Mbps

■ Selectable RX FIFO interrupt trigger levels

■ Auto RS-485 Half-Duplex Control mode

The 128 byte Transmit and Receive FIFOs reduce

CPU overhead and minimize the chance of buffer

overflow and data loss. In addition to the 16550

UART registers, there are also Configuration register

set where enhanced features such as the 9-bit

(multidrop) mode, IrDA mode and the Watchdog

Timer can be enabled.

■ Programmable character lengths (5, 6, 7, 8)

with even, odd, or no parity

■ IrDA mode and separate IRTXA# and IRRXA#

pins for the first UART channel

■ 9-bit (Multidrop) mode

x External 24MHz/48MHz clock

x Single 3.3V Supply Voltage ( 10% )

x 5V tolerant inputs

The V384 is available in a 48-pin TQFP package.

APPLICATIONS

x Industrial and Embedded PCs

x Factory Automation and Process Controls

x Network Routers

x 48-TQFP package (7mm x 7mm)

x System Board Designs

FIGURE 1. XR28V384 BLOCK DIAGRAM

V C C

G N D

3 .3 V

1 0 %

T X A /P S _ 3 F 8 _ IR Q A

IR T X A #

R X A

T X F IF O

(IrD A E n c o d e r)

B a u d

R a te

G e n e ra to r

R X F IF O

(IrD A D e co d e r)

IR R X A #

R T S A # /P S _ C O N F _ 2 E /R S 4 8 5

S ta tu s a n d

C o n tro l

R e g is te rs

P C IR S T #

L C L K

M o d e m

IO s

D T R A # /P S _ 3 E 0 _ IR Q A

C T S A # , D S R A # , C D A # , R IA #

L P C

B u s

In te rfa ce

L F R A M E

U A R T C h a n n e l A

L A D [3 :0 ]

S E R IR Q

T X B /P S _ 2 F 8 _ IR Q B

R X B

B a u d

R a te

G e n e ra to r

T X F IF O

R X F IF O

S ta tu s a n d

C o n tro l

R e g is te rs

R T S B # /P S _ C O N F _ K E Y 1 /R S 4 8 5

D T R B # /P S _ 2 E 0 _ IR Q B

C T S B # , D S R B # , C D B # , R IB #

M o d e m

IO s

G lo b a l

C o n fig u ra tio n

R e g is te rs

U A R T C h a n n e l B

T X C /P S _ 3 E 8 _ IR Q C

R X C

B a u d

R a te

G e n e ra to r

T X F IF O

R X F IF O

W a tc h

D o g

T im e r

S ta tu s a n d

C o n tro l

R e g iste rs

W D T O U T

R T S C # /P S _ C O N F _ K E Y 0 /R S 4 8 5

D T R C # /P S _ W D T

C T S C # , D S R C # , C D C # , R IC #

M o d e m

IO s

U A R T C h a n n e l C

T X D /P S _ 2 E 8 _ IR Q D

R X D

B a u d

R a te

G e n e ra to r

T X F IF O

R X F IF O

C lo c k

D iv id e r

C L K I

S ta tu s a n d

C o n tro l

R e g iste rs

R T S D # /R S 4 8 5

D T R D #

M o d e m

IO s

C T S D # , D S R D # , C D D # ,

R ID #

U A R T C h a n n e l D

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

12 3 4 5 6 7...42

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与XR28V384IM48-0A-EB相关器件

型号	品牌	获取价格	描述	数据表
XR28V384IM48-F	EXAR	获取价格	XR28V384 3.3V QUAD LPC UART WITH 128-BYTE FIFO
XR28V384IM48TR-F	EXAR	获取价格	XR28V384 3.3V QUAD LPC UART WITH 128-BYTE FIFO
XR-2901CJ	EXAR	获取价格	Modem-Data/Fax/Voice, 2.4kbps Data, 9.6kbps Fax, CMOS, PQCC44, PLASTIC, LCC-44
XR-2901CP	EXAR	获取价格	Modem-Data/Fax/Voice, 2.4kbps Data, 9.6kbps Fax, CMOS, PDIP40, PLASTIC, DIP-40
XR-2901CQ	EXAR	获取价格	Modem-Data/Fax/Voice, 2.4kbps Data, 9.6kbps Fax, CMOS, PQFP44, METRIC, PLASTIC, QFP-44
XR-2902CJ	EXAR	获取价格	Modem-Data/Fax/Voice, 2.4kbps Data, 9.6kbps Fax, CMOS, PQCC52, PLASTIC, LCC-52
XR-2902CP	EXAR	获取价格	Modem-Data/Fax/Voice, 2.4kbps Data, 9.6kbps Fax, CMOS, PDIP48, PLASTIC, DIP-48
XR-2902CQ	EXAR	获取价格	Modem-Data/Fax/Voice, 2.4kbps Data, 9.6kbps Fax, CMOS, PQFP52, METRIC, PLASTIC, QFP-52
XR-2917CN	ETC	获取价格	Frequency-to-Voltage Converter
XR-2917CP	ETC	获取价格	Frequency-to-Voltage Converter

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