Datasheet > XR16M554

XR16M554

更新时间： 2024-11-22 05:52:31

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
46页	941K
描述
1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO

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中文翻译

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数据手册

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XR16M554 数据手册

XR16M554/554D

1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO

MAY 2008

REV. 1.0.0

FEATURES

GENERAL DESCRIPTION

•

Pin-to-pin compatible with ST16C454, ST16C554,

TI’s TL16C554A and NXP’s SC16C554B

The XR16M554 (M554) is

quad Universal

Asynchronous Receiver and Transmitter (UART) with

16 bytes of transmit and receive FIFOs, selectable

receive FIFO trigger levels and data rates of up to 4

Mbps at 3.3 V. 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 M554 is available in a 48-

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

LQFP packages. The 64-pin and 80-pin packages

only offer the 16 mode interface, but the 48- and 68-

pin packages offer an additional 68 mode interface

which allows easy integration with Motorola

processors. The XR16M554IV (64-pin) offers three

state interrupt output while the XR16M554DIV

provides continuous interrupt output. The XR16M554

is compatible with the industry standard ST16C554.

•

Intel or Motorola Data Bus Interface select

Four independent UART channels

■

Data rates of up to 4 Mbps at 3.3 V, 3.125

Mbps at 2.5 V and 2 Mbps at 1.8 V

■

16 byte Transmit FIFO

16 byte Receive FIFO with error tags

4 Selectable RX FIFO Trigger Levels

Full modem interface

•

1.62V to 3.63V supply operation

Crystal oscillator or external clock input

APPLICATIONS

•

Portable Appliances

Telecommunication Network Routers

Ethernet Network Routers

Cellular Data Devices

Factory Automation and Process Controls

IGURE 1. XR16M554 BLOCK

IAGRAM

1.62 V to 3.6 V VCC

GND

A2:A0

D7:D0

IOR#

UART Channel A

16 Byte TX FIFO

UART

Regs

TXA, RXA, DTRA#,

DSRA#, RTSA#, CTSA#,

CDA#, RIA#

IOW#

CSA#

CSB#

TX & RX

BRG

16 Byte RX FIFO

CSC#

CSD#

TXB, RXB, DTRB#,

UART Channel B

DSRB#, RTSB#, CTSB#,

(same as Channel A)

INTA

Data Bus

Interface

CDB#, RIB#

INTB

INTC

TXC, RXC, DTRC#,

DSRC#, RTSC#, CTSC#,

CDC#, RIC#

UART Channel C

(same as Channel A)

INTD

TXRDY#A-D

RXRDY#A-D

Reset

TXD, RXD, DTRD#,

DSRD#, RTSD#, CTSD#,

CDD#, RID#

UART Channel D

(same as Channel A)

16 68#

XTAL1

XTAL2

Crystal Osc Buffer

INTSEL

554BLK

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

12 3 4 5 6 7...46

中文翻译

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与XR16M554相关器件

型号	品牌	获取价格	描述	数据表
XR16M554D	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554DIV64	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554DIV64-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQFP64,
XR16M554IJ68	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554IJ68-F	EXAR	获取价格	暂无描述
XR16M554IL48	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554IL48-F	EXAR	获取价格	暂无描述
XR16M554IV64	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554IV64-F	EXAR	获取价格	暂无描述
XR16M554IV80	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO

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