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參數(shù)資料
| 型號： | XR16L788IQ-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 1/54頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART 64B 3.3V OCTAL 100QFP |
| 標(biāo)準(zhǔn)包裝： | 66 |
| 特點： | * |
| 通道數(shù)： | 8 |
| FIFO's： | 64 字節(jié) |
| 規(guī)程： | RS485 |
| 電源電壓： | 2.97 V ~ 5.5 V |
| 帶自動流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動位檢測功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-BQFP |
| 供應(yīng)商設(shè)備封裝： | 100-QFP（14x20） |
| 包裝： | 托盤 |
| 其它名稱： | 1016-1284 |
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16L788
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
JULY 2008
REV. 1.2.3
GENERAL DESCRIPTION
The XR16L7881 (788), is a 2.97V to 5.5V with 5V
tolerant
inputs
octal
Universal
Asynchronous
Receiver
and
Transmitter
(UART).
The
highly
integrated device is designed for high bandwidth
requirement in communication systems. The global
interrupt source register provides a complete interrupt
status indication for all 8 channels to speed up
interrupt parsing. Each UART has its own 16C550
compatible set of configuration registers, TX and RX
FIFOs of 64 bytes, fully programmable transmit and
receive FIFO trigger levels, TX and RX FIFO level
counters, automatic RTS/CTS or DTR/DSR hardware
flow control with programmable hysteresis, autoamtic
software (Xon/Xoff) flow control, RS-485 half-duplex
direction control with programmable turn-around
delay, Intel or Motorola bus interface and sleep mode
with a wake-up indicator.
NOTE: Covered by US 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 with 5V Tolerant Inputs Operation
Single Interrupt Output for all 8 UARTs
Global Interrupt Source for all 8 UARTs
5G “Flat” UART Registers for Configurations
Simultaneous UART Channels Initialization
Auto RS485 Half-duplex Control with Program-
mable Turn-around Delay
A General Purpose 16-bit Timer/Counter
Sleep Mode with Wake-up Indication
Highly Integrated Device for Space Saving
First eight registers are 16C550 compatible
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 Hardware Flow Control Hysteresis
Automatic Xon/Xoff Software Flow Control with
Status Indicator
Infrared (IrDA 1.0) Data Encoder/Decoder
Programmable Data Rate with Prescaler
Up to 6.25 Mbps Serial Data Rate at 5V
100-pin QFP Package (14x20x3 mm)
FIGURE 1. BLOCK DIAGRAM
TMRCK
Device
Configuration
Registers
XTAL1
XTAL2
Crystal Osc/Buffer
UART Channel 0
TX0, RX0, DTR0#,
DSR0#, RTS0#,
CTS0#, CD0#, RI0#
Data Bus
Interface
RST#
A7:A0
IOR#
IOW#
CS#
INT#
TX7, RX7, DTR7#,
DSR7#, RTS7#,
CTS7#, CD7#, RI7#
UART Channel 7
UART Channel 6
UART Channel 5
UART Channel 4
UART Channel 3
UART Channel 2
UART Channel 1
16-bit
Timer/Counter
64 Byte TX FIFO
64 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
D7:D0
16/68#
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| XR16L788IQTR-F | 功能描述:UART 接口集成電路 3.3V OCTAL 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 |
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| XR16M2550IL32 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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