EEWORLDEEWORLDEEWORLD

Part Number

Search

XR16V554_07

Description
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
File Size336KB,45 Pages
ManufacturerExar [Exar Corporation]
Download Datasheet View All

XR16V554_07 Overview

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

XR16V554/554D
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
SEPTEMBER 2007
REV. 1.0.2
GENERAL DESCRIPTION
The XR16V554 (V554) is a 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.
FEATURES
Pin-to-pin compatible with ST16C454, ST16C554,
TI’s TL16C554A and Philip’s SC16C554B
Intel or Motorola Data Bus Interface select
Four independent UART channels
Register Set Compatible to 16C550
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
F
IGURE
1. XR16V554 B
LOCK
D
IAGRAM
* 5 Volt Tolerant Inputs
( Except XTAL1 input)
UART Channel A
UART 16 Byte TX FIFO
Regs
TX & RX
BRG
16 Byte RX FIFO
TXB, RXB, DTRB#,
DSRB#, RTSB#, CTSB#,
CDB#, RIB#
TXC, RXC, DTRC#,
DSRC#, RTSC#, CTSC#,
CDC#, RIC#
TXD, RXD, DTRD#,
DSRD#, RTSD#, CTSD#,
CDD#, RID#
XTAL1
XTAL2
2.25V to 3.6 V VCC
GND
A2:A0
D7:D0
IOR#
IOW#
CSA#
CSB#
CSC#
CSD#
INTA
INTB
INTC
INTD
TXRDY# A-D
RXRDY# A-D
Reset
16/ 68#
INTSEL
TXA, RXA, DTRA#,
DSRA#, RTSA#, CTSA#,
CDA#, RIA#
Data Bus
Interface
UART Channel B
(same as Channel A)
UART Channel C
(same as Channel A)
UART Channel D
(same as Channel A)
Crystal Osc / Buffer
554BLK
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
Which library is the button package in? I can't find it!
I searched all the libraries but couldn't find it! Can an expert give me some advice? ! Thank you! ! ! ! ! !...
fefefe PCB Design
Power frequency transformers for medical devices
Medical devices have high requirements for power frequency transformers. Basically, there are the following. 1. Dielectric strength between primary and secondary sides 4000VAC 1 minute. 2. Electrical ...
柳飘飘 Medical Electronics
Testbench_stimulus, reset
Testbench_stimulus, reset...
青城山下 FPGA/CPLD
wince dedicated msn group: windows_ce@live.cn, and wince dedicated QQ group on Davinci platform: 51820869
Wince dedicated MSN group: windows_ce@live.cn Wince dedicated QQ group on Davinci platform: 51820869...
beishui Embedded System
Newbit received, please tell me how to turn on Bluetooth
Thanks to dcexpert, this little thing is very delicate and can be operated via a data cable. The official video shows that it can be operated via wireless Bluetooth. I wonder if this board supports th...
hyaska DIY/Open Source Hardware
9B96 debugged with IAR, unable to download program
After compiling, the program cannot be downloaded. The error message is: There were warnings during download of Flash loser, see log indow Session aborted. I use the 9B96 development board....
vicxue10 Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2853  1528  958  2460  386  58  31  20  50  8 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号