參數(shù)資料
型號： XR16L784IV
廠商： EXAR CORP
元件分類： 微控制器/微處理器
英文描述： HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
中文描述： 4 CHANNEL(S), 6.25M bps, SERIAL COMM CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, LQFP-64
文件頁數(shù)： 1/52頁
文件大?。?/td> 625K
代理商： XR16L784IV
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
á
XR16L784
HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
JUNE 2004
GENERAL DESCRIPTION
REV. 1.2.0
The XR16L784
1
(784) is a quad Universal
Asynchronous Receiver and Transmitter (UART). The
device is designed for high bandwidth requirement in
communication systems. The global interrupt source
register provides a complete interrupt status
indication for all 4 channels to speed up interrupt
parsing. Each UART has its own 16C550 compatible
set of configuration registers, transmit and receive
FIFOs of 64 bytes, fully programmable transmit and
receive FIFO level triggers, transmit and receive
FIFO level counters, automatic RTS/CTS or DTR/
DSR hardware flow control with programmable
hysteresis, automatic software (Xon/Xoff) flow
control, IrDA (Infrared Data Association) encoder/
decoder, and a 16-bit general purpose timer/counter.
N
OTE
:
1 Covered by U.S. Patents #5,649,122 and #5,949,787
APPLICATIONS
Remote Access Servers
Ethernet Network to Serial Ports
Network Management
Factory Automation and Process Control
Point-of-Sale Systems
Multi-port RS-232/RS-422/RS-485 Cards
FEATURES
2.97V to 5.5V operation with 5V Tolerant Inputs
8-bit Intel or Motorola Data Bus Interface
Single Open Drain Interrupt output for all 4 channels
Global Interrupt Source Registers for all channels
5G (Fifth Generation) “Flat” Register Set
Each UART is Independently Controlled with:
16C550 Compatible Registers
64-byte Transmit and Receive FIFOs
Transmit and Receive FIFO Level Counters
Programmable TX and RX FIFO Trigger Levels
Automatic RTS/CTS or DTR/DSR Flow Control
Selectable RTS Flow Control Hysteresis
Automatic Xon/Xoff Software Flow Control
Automatic RS485 Half-duplex Control Output with
16 Selectable Turn-around Delay
Infrared (IrDA 1.1) Data Encoder/Decoder
Programmable Data Rate with Prescaler
Up to 3.12 (16x) and 6.25 (8x) Mbps Data Rate
A General Purpose 16-bit Timer/Counter
Sleep Mode with Automatic Wake-up Indicator
64-pin TQFP Package (10x10x1.4 mm)
F
IGURE
1. B
LOCK
D
IAGRAM
TMRCK
Device
Configuration
Register
s
XTAL1
XTAL2
Crystal Osc/
Buffer
TX0, RX0, DTR0#,
DSR0#, RTS0#,
CTS0#, CD0#, RI0#
Intel or
Motorola
Data
Bus
Interface
TX3, RX3, DTR3#,
DSR3#, RTS3#,
CTS3#, CD3#, RI3#
UART Channel 3
UART Channel 2
UART Channel 1
16-bit
Timer/Counter
UART Channel 0
64 Byte TX FIFO
64 Byte RX FIFO
BRG
IR
ENDEC
TX &
RX
UART
Regs
2.97V to 5.5V VCC
GND
*All Inputs are 5V Tolerant
(Except XTAL1)
784BLK
RST#
16/68#
ENIR
A7:A0
IOR#
IOW#
CS#
INT#
D7:D0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16L784IV-F 功能描述:UART 接口集成電路 2.97V-5.5V 64B FIFO temp -45 to 85C RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L784IVTR-F 功能描述:UART 接口集成電路 PCI BUS QUAD UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L788 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE OCTAL UART
XR16L788_05 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
XR16L788_08 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
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