Datasheet > XR16V554_07

XR16V554_07

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
45页	916K
描述
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO

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数据手册

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XR16V554_07 数据手册

XR16V554/554D

2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO

SEPTEMBER 2007

REV. 1.0.2

FEATURES

GENERAL DESCRIPTION

•

Pin-to-pin compatible with ST16C454, ST16C554,

TI’s TL16C554A and Philip’s SC16C554B

The XR16V554 (V554) 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 V554 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 XR16V554IV (64-pin) offers three

state interrupt output while the XR16V554DIV

provides continuous interrupt output. The XR16V554

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 and 3.125

Mbps at 2.5 V

■

16 byte Transmit FIFO

16 byte Receive FIFO with error tags

4 Selectable RX FIFO Trigger Levels

Full modem interface

•

2.25V to 3.6V 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. XR16V554 BLOCK DIAGRAM

2.25V to 3.6 V VCC

GND

* 5 Volt Tolerant Inputs

A2:A0

D7:D0

( Except XTAL1input)

UART Channel A

16 Byte TX FIFO

IOR#

IOW#

CSA#

CSB#

UART

Regs

TXA, RXA, DTRA#,

DSRA#, RTSA#, CTSA#,

CDA#, RIA#

TX &RX

BRG

16 Byte RX FIFO

CSC#

CSD#

TXB, RXB, DTRB#,

DSRB#, RTSB#, CTSB#,

CDB#, RIB#

UART Channel B

(same as Channel A)

INTA

Data Bus

Interface

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...45

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与XR16V554_07相关器件

型号	品牌	获取价格	描述	数据表
XR16V554D	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554DIV	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554DIV-0A-EB	EXAR	获取价格	EVAL BOARD FOR XR16V554D 64LQFP
XR16V554DIVTR-F	EXAR	获取价格	IC UART FIFO 16B QUAD 64LQFP
XR16V554IJ	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554IJ-0A-EVB	EXAR	获取价格	EVAL BOARD FOR XR16V554 68PLCC
XR16V554IJ-F	EXAR	获取价格	Serial I/O Controller, 4 Channel(s), 0.5MBps, CMOS, PQCC68, GREEN, PLASTIC, LCC-68
XR16V554IJTR-F	EXAR	获取价格	IC UART QUAD 2.25V - 3.6V 68PLCC
XR16V554IL	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554IL-0A-EVB	EXAR	获取价格	EVAL BOARD FOR XR16V554 48QFN

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